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Rangesh NM, Malaisamy AK, Kumar N, Kumar S. Analysis of the metabolic profile of humans naturally exposed to RF-EM radiation. Metabolomics 2024; 20:55. [PMID: 38762651 DOI: 10.1007/s11306-024-02121-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 04/20/2024] [Indexed: 05/20/2024]
Abstract
INTRODUCTION The world is experiencing exponential growth in communication, especially wireless communication. Wireless connectivity has recently become a part of everyone's daily life. Recent developments in low-cost, low-power, and miniature devices contribute to a significant rise in radiofrequency-electromagnetic field (RF-EM) radiation exposure in our environment, raising concern over its effect on biological systems. The inconsistent and conflicting research results make it difficult to draw definite conclusions about how RF-EM radiation affects living things. OBJECTIVES This study identified two micro-environments based on their level of exposure to cellular RF-EM radiation, one with significantly less exposure and another with very high exposure to RF-EM radiation. Emphasis is given to studying the metabolites in the urine samples of humans naturally exposed to these two different microenvironments to understand short-term metabolic dysregulations. METHODS Untargeted 1H NMR spectroscopy was employed for metabolomics analyses to identify dysregulated metabolites. A total of 60 subjects were recruited with 5 ml urine samples each. These subjects were divided into two groups: one highly exposed to RF-EM (n = 30) and the other consisting of low-exposure populations (n = 30). RESULTS The study found that the twenty-nine metabolites were dysregulated. Among them, 19 were downregulated, and 10 were upregulated. In particular, Glyoxylate and dicarboxylate and the TCA cycle metabolism pathway have been perturbed. The dysregulated metabolites were validated using the ROC curve analysis. CONCLUSION Untargeted urine metabolomics was conducted to identify dysregulated metabolites linked to RF-EM radiation exposure. Preliminary findings suggest a connection between oxidative stress and gut microbiota imbalance. However, further research is needed to validate these biomarkers and understand the effects of RF-EM radiation on human health. Further research is needed with a diverse population.
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Affiliation(s)
- Neel Mani Rangesh
- Department of Electronics & Communication Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835 215, India.
| | - Arun Kumar Malaisamy
- Transcription Regulation Group, International Centre for Genetic Engineering and Biotechnology (ICGEB), Aruna Asaf Ali Marg, New Delhi, 110 067, India
| | - Nitesh Kumar
- Department of Pathology, Indira Gandhi Institute of Medical Sciences (IGIMS), Sheikhpura, Patna, Bihar, 800 014, India
| | - Sanjay Kumar
- Department of Electronics & Communication Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835 215, India
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Pannkuk EL, Shuryak I, Kot A, Yun-Tien Lin L, Li HH, Fornace AJ. Host microbiome depletion attenuates biofluid metabolite responses following radiation exposure. PLoS One 2024; 19:e0300883. [PMID: 38758927 PMCID: PMC11101107 DOI: 10.1371/journal.pone.0300883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 03/06/2024] [Indexed: 05/19/2024] Open
Abstract
Development of novel biodosimetry assays and medical countermeasures is needed to obtain a level of radiation preparedness in the event of malicious or accidental mass exposures to ionizing radiation (IR). For biodosimetry, metabolic profiling with mass spectrometry (MS) platforms has identified several small molecules in easily accessible biofluids that are promising for dose reconstruction. As our microbiome has profound effects on biofluid metabolite composition, it is of interest how variation in the host microbiome may affect metabolomics based biodosimetry. Here, we 'knocked out' the microbiome of male and female C57BL/6 mice (Abx mice) using antibiotics and then irradiated (0, 3, or 8 Gy) them to determine the role of the host microbiome on biofluid radiation signatures (1 and 3 d urine, 3 d serum). Biofluid metabolite levels were compared to a sham and irradiated group of mice with a normal microbiome (Abx-con mice). To compare post-irradiation effects in urine, we calculated the Spearman's correlation coefficients of metabolite levels with radiation dose. For selected metabolites of interest, we performed more detailed analyses using linear mixed effect models to determine the effects of radiation dose, time, and microbiome depletion. Serum metabolite levels were compared using an ANOVA. Several metabolites were affected after antibiotic administration in the tryptophan and amino acid pathways, sterol hormone, xenobiotic and bile acid pathways (urine) and lipid metabolism (serum), with a post-irradiation attenuative effect observed for Abx mice. In urine, dose×time interactions were supported for a defined radiation metabolite panel (carnitine, hexosamine-valine-isoleucine [Hex-V-I], creatine, citric acid, and Nε,Nε,Nε-trimethyllysine [TML]) and dose for N1-acetylspermidine, which also provided excellent (AUROC ≥ 0.90) to good (AUROC ≥ 0.80) sensitivity and specificity according to the area under the receiver operator characteristic curve (AUROC) analysis. In serum, a panel consisting of carnitine, citric acid, lysophosphatidylcholine (LysoPC) (14:0), LysoPC (20:3), and LysoPC (22:5) also gave excellent to good sensitivity and specificity for identifying post-irradiated individuals at 3 d. Although the microbiome affected the basal levels and/or post-irradiation levels of these metabolites, their utility in dose reconstruction irrespective of microbiome status is encouraging for the use of metabolomics as a novel biodosimetry assay.
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Affiliation(s)
- Evan L. Pannkuk
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, United States of America
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC, United States of America
- Center for Metabolomics Studies, Georgetown University, Washington, DC, United States of America
| | - Igor Shuryak
- Center for Radiological Research, Columbia University Irving Medical Center, New York, NY, United States of America
| | - Anika Kot
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, United States of America
| | - Lorreta Yun-Tien Lin
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, United States of America
| | - Heng-Hong Li
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, United States of America
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC, United States of America
| | - Albert J. Fornace
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC, United States of America
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC, United States of America
- Center for Metabolomics Studies, Georgetown University, Washington, DC, United States of America
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Carpenter AD, Li Y, Fatanmi OO, Wise SY, Petrus SA, Janocha BL, Cheema AK, Singh VK. Metabolomic Profiles in Tissues of Nonhuman Primates Exposed to Either Total- or Partial-Body Radiation. Radiat Res 2024; 201:371-383. [PMID: 38253059 DOI: 10.1667/rade-23-00091.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/27/2023] [Indexed: 01/24/2024]
Abstract
A complex cascade of systemic and tissue-specific responses induced by exposure to ionizing radiation can lead to functional impairment over time in the surviving population. Current methods for management of survivors of unintentional radiation exposure episodes rely on monitoring individuals over time for the development of adverse clinical symptoms due to the lack of predictive biomarkers for tissue injury. In this study, we report on changes in metabolomic and lipidomic profiles in multiple tissues of nonhuman primates (NHPs) that received either 4.0 Gy or 5.8 Gy total-body irradiation (TBI) of 60Co gamma rays, and 4.0 or 5.8 Gy partial-body irradiation (PBI) from LINAC-derived photons and were treated with a promising radiation countermeasure, gamma-tocotrienol (GT3). These include small molecule alterations that correlate with radiation effects in the jejunum, lung, kidney, and spleen of animals that either survived or succumbed to radiation toxicities over a 30-day period. Radiation-induced metabolic changes in tissues were observed in animals exposed to both doses and types of radiation, but were partially alleviated in GT3-treated and irradiated animals, with lung and spleen being most responsive. The majority of the pathways protected by GT3 treatment in these tissues were related to glucose metabolism, inflammation, and aldarate metabolism, suggesting GT3 may exert radioprotective effects in part by sparing these pathways from radiation-induced dysregulation. Taken together, the results of our study demonstrate that the prophylactic administration of GT3 results in metabolic and lipidomic shifts that likely provide an overall advantage against radiation injury. This investigation is among the first to highlight the use of a molecular phenotyping approach in a highly translatable NHP model of partial- and total-body irradiation to determine the underlying physiological mechanisms involved in the radioprotective efficacy of GT3.
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Affiliation(s)
- Alana D Carpenter
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Yaoxiang Li
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
| | - Oluseyi O Fatanmi
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Stephen Y Wise
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Sarah A Petrus
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Brianna L Janocha
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Amrita K Cheema
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC
- Department of Biochemistry, Molecular and Cellular Biology, Georgetown University Medical Center, Washington DC
| | - Vijay K Singh
- Division of Radioprotectants, Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, Maryland
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, Maryland
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Laiakis EC, Shuryak I, Deziel A, Wang YW, Barnette BL, Yu Y, Ullrich RL, Fornace AJ, Emmett MR. Effects of Low Dose Space Radiation Exposures on the Splenic Metabolome. Int J Mol Sci 2021; 22:3070. [PMID: 33802822 PMCID: PMC8002539 DOI: 10.3390/ijms22063070] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/14/2021] [Accepted: 03/15/2021] [Indexed: 12/12/2022] Open
Abstract
Future space missions will include a return to the Moon and long duration deep space roundtrip missions to Mars. Leaving the protection that Low Earth Orbit provides will unavoidably expose astronauts to higher cumulative doses of space radiation, in addition to other stressors, e.g., microgravity. Immune regulation is known to be impacted by both radiation and spaceflight and it remains to be seen whether prolonged effects that will be encountered in deep space can have an adverse impact on health. In this study, we investigated the effects in the overall metabolism of three different low dose radiation exposures (γ-rays, 16O, and 56Fe) in spleens from male C57BL/6 mice at 1, 2, and 4 months after exposure. Forty metabolites were identified with significant enrichment in purine metabolism, tricarboxylic acid cycle, fatty acids, acylcarnitines, and amino acids. Early perturbations were more prominent in the γ irradiated samples, while later responses shifted towards more prominent responses in groups with high energy particle irradiations. Regression analysis showed a positive correlation of the abundance of identified fatty acids with time and a negative association with γ-rays, while the degradation pathway of purines was positively associated with time. Taken together, there is a strong suggestion of mitochondrial implication and the possibility of long-term effects on DNA repair and nucleotide pools following radiation exposure.
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Affiliation(s)
- Evagelia C. Laiakis
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, Washington, DC 20057, USA; (A.D.); (Y.-W.W.); (A.J.F.J.)
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20057, USA
| | - Igor Shuryak
- Center for Radiological Research, Columbia University, New York, NY 10032, USA;
| | - Annabella Deziel
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, Washington, DC 20057, USA; (A.D.); (Y.-W.W.); (A.J.F.J.)
| | - Yi-Wen Wang
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, Washington, DC 20057, USA; (A.D.); (Y.-W.W.); (A.J.F.J.)
| | - Brooke L. Barnette
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA; (B.L.B.); (Y.Y.); (M.R.E.)
| | - Yongjia Yu
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA; (B.L.B.); (Y.Y.); (M.R.E.)
| | | | - Albert J. Fornace
- Lombardi Comprehensive Cancer Center, Department of Oncology, Georgetown University, Washington, DC 20057, USA; (A.D.); (Y.-W.W.); (A.J.F.J.)
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington, DC 20057, USA
| | - Mark R. Emmett
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555, USA; (B.L.B.); (Y.Y.); (M.R.E.)
- Department of Radiation Oncology, University of Texas Medical Branch, Galveston, TX 77555, USA
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Gramatyka M, Widłak P, Gabryś D, Kulik R, Sokół M. Resveratrol administration prevents radiation-related changes in metabolic profiles of hearts 20 weeks after irradiation of mice with a single 2 Gy dose. Acta Biochim Pol 2020; 67:629-632. [PMID: 33332781 DOI: 10.18388/abp.2020_5403] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 10/02/2020] [Indexed: 11/10/2022]
Abstract
We aimed to evaluate whether resveratrol affects radiation-induced changes in metabolite profiles of the mouse heart. Hearts were irradiated in vivo with a single 2 Gy dose during the resveratrol administration and metabolite profiles of heart tissue were analyzed by the untargeted HR-MAS NMR approach twenty weeks after irradiation. The administration of resveratrol mitigated the radiation-induced decline in the content of choline-containing compounds and unsaturated lipids, which might reflect the stabilization of cell membrane structure against radiation-related damage. Results obtained with this mouse model suggest that the resveratrol supplementation may prevent metabolic changes related to radiation-induced damage in the heart.
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Affiliation(s)
- Michalina Gramatyka
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Piotr Widłak
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Dorota Gabryś
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Roland Kulik
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Maria Sokół
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, Gliwice, Poland
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Wang LM, Shen BR, Li BD, Zhang CL, Lin M, Tong PP, Cui LL, Zhang ZS, Peng XX. A Synthetic Photorespiratory Shortcut Enhances Photosynthesis to Boost Biomass and Grain Yield in Rice. Mol Plant 2020; 13:1802-1815. [PMID: 33075506 DOI: 10.1016/j.molp.2020.10.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 09/16/2020] [Accepted: 10/14/2020] [Indexed: 05/20/2023]
Abstract
Several photorespiratory bypasses have been introduced into plants and shown to improve photosynthesis by increasing chloroplastic CO2 concentrations or optimizing energy balance. We recently reported that an engineered GOC bypass could increase photosynthesis and productivity in rice. However, the grain yield of GOC plants was unstable, fluctuating in different cultivation seasons because of varying seed setting rates. In this study, we designed a synthetic photorespiratory shortcut (the GCGT bypass) consisting of genes encoding Oryza sativa glycolate oxidase and Escherichia coli catalase, glyoxylate carboligase, and tartronic semialdehyde reductase. The GCGT bypass was guided by an optimized chloroplast transit peptide that targeted rice chloroplasts and redirected 75% of carbon from glycolate metabolism to the Calvin cycle, identical to the native photorespiration pathway. GCGT transgenic plants exhibited significantly increased biomass production and grain yield, which were mainly attributed to enhanced photosynthesis due to increased chloroplastic CO2 concentrations. Despite the increases in biomass production and grain yield, GCGT transgenic plants showed a reduced seed setting rate, a phenotype previously reported for the GOC plants. Integrative transcriptomic, physiological, and biochemical assays revealed that photosynthetic carbohydrates were not transported to grains in an efficient manner, thereby reducing the seed setting rate. Taken together, our results demonstrate that the GCGT photorespiratory shortcut confers higher yield by promoting photosynthesis in rice, mainly through increasing chloroplastic CO2 concentrations.
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Affiliation(s)
- Li-Min Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China; College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Bo-Ran Shen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Bo-Di Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Chuan-Ling Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Min Lin
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Pan-Pan Tong
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Li-Li Cui
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Zhi-Sheng Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Xin-Xiang Peng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China.
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Santin M, Ranieri A, Hauser MT, Miras-Moreno B, Rocchetti G, Lucini L, Strid Å, Castagna A. The outer influences the inner: Postharvest UV-B irradiation modulates peach flesh metabolome although shielded by the skin. Food Chem 2020; 338:127782. [PMID: 32798826 DOI: 10.1016/j.foodchem.2020.127782] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/14/2020] [Accepted: 08/03/2020] [Indexed: 02/06/2023]
Abstract
UV-B-driven modulation of secondary metabolism in peach fruit by enhancing the biosynthesis of specific phenolic subclasses, is attracting interest among consumers. However, current literature explored the UV-B-induced metabolic changes only in peach skin subjected to direct UV-B irradiation. Accordingly, this study aimed to understand whether UV-B radiation penetrates the fruit skin and is able to induce metabolic changes also within the inner flesh. Peaches were UV-B-irradiated either 10 or 60 min, and the flesh was sampled after 24 and 36 h. Non-targeted metabolomics revealed that UV-B has a strong impact on peach flesh metabolome, determining an initial decrease after 24 h, followed by an overall increase after 36 h, particularly for terpenoids, phenylpropanoids, phytoalexins and fatty acids in the 60 min UV-B-treated samples (+150.02, +99.14, +43.79 and +25.44 log2FC, respectively). Transmittance analysis indicated that UV-B radiation does not penetrate below the skin, suggesting a possible signalling pathway between tissues.
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Affiliation(s)
- Marco Santin
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy.
| | - Annamaria Ranieri
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy.
| | - Marie-Theres Hauser
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria.
| | - Begoña Miras-Moreno
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense, 84, 29122 Piacenza, Italy; Council for Agricultural Research and Economics- Research Centre for Genomics and Bioinformatics (CREA-GB), via San Protaso 302, 29017 Fiorenzuola d'Arda, PC, Italy.
| | - Gabriele Rocchetti
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense, 84, 29122 Piacenza, Italy.
| | - Luigi Lucini
- Department for Sustainable Food Process, Università Cattolica del Sacro Cuore, Via Emilia Parmense, 84, 29122 Piacenza, Italy.
| | - Åke Strid
- School of Science and Technology and Örebro Life Science Center, Örebro University, Örebro, Sweden.
| | - Antonella Castagna
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy.
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Swartz HM, Flood AB, Singh VK, Swarts SG. Scientific and Logistical Considerations When Screening for Radiation Risks by Using Biodosimetry Based on Biological Effects of Radiation Rather than Dose: The Need for Prior Measurements of Homogeneity and Distribution of Dose. Health Phys 2020; 119:72-82. [PMID: 32175928 PMCID: PMC7269859 DOI: 10.1097/hp.0000000000001244] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An effective medical response to a large-scale radiation event requires prompt and effective initial triage so that appropriate care can be provided to individuals with significant risk for severe acute radiation injury. Arguably, it would be advantageous to use injury rather than radiation dose for the initial assessment; i.e., use bioassays of biological damage. Such assays would be based on changes in intrinsic biological response elements; e.g., up- or down-regulation of genes, proteins, metabolites, blood cell counts, chromosomal aberrations, micronuclei, micro-RNA, cytokines, or transcriptomes. Using a framework to evaluate the feasibility of biodosimetry for triaging up to a million people in less than a week following a major radiation event, Part 1 analyzes the logistical feasibility and clinical needs for ensuring that biomarkers of organ-specific injury could be effectively used in this context. We conclude that the decision to use biomarkers of organ-specific injury would greatly benefit by first having independent knowledge of whether the person's exposure was heterogeneous and, if so, what was the dose distribution (to determine which organs were exposed to high doses). In Part 2, we describe how these two essential needs for prior information (heterogeneity and dose distribution) could be obtained by using in vivo nail dosimetry. This novel physical biodosimetry method can also meet the needs for initial triage, providing non-invasive, point-of-care measurements made by non-experts with immediate dose estimates for four separate anatomical sites. Additionally, it uniquely provides immediate information as to whether the exposure was homogeneous and, if not, it can estimate the dose distribution. We conclude that combining the capability of methods such as in vivo EPR nail dosimetry with bioassays to predict organ-specific damage would allow effective use of medical resources to save lives.
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Affiliation(s)
- Harold M. Swartz
- Dept of Radiology, Geisel School of Medicine at Dartmouth College, Hanover, NH USA
- Dept of Medicine/Radiation Oncology, Geisel School of Medicine at Dartmouth College, Hanover, NH USA
| | - Ann Barry Flood
- Dept of Radiology, Geisel School of Medicine at Dartmouth College, Hanover, NH USA
| | - Vijay K. Singh
- Dept. Pharmacology & Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Steven G. Swarts
- Dept of Radiation Oncology, University of Florida, Gainesville, FL, USA
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Frey B, Mika J, Jelonek K, Cruz-Garcia L, Roelants C, Testard I, Cherradi N, Lumniczky K, Polozov S, Napieralska A, Widlak P, Gaipl US, Badie C, Polanska J, Candéias SM. Systemic modulation of stress and immune parameters in patients treated for prostate adenocarcinoma by intensity-modulated radiation therapy or stereotactic ablative body radiotherapy. Strahlenther Onkol 2020; 196:1018-1033. [PMID: 32519025 PMCID: PMC7581573 DOI: 10.1007/s00066-020-01637-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 05/12/2020] [Indexed: 01/01/2023]
Abstract
Background In this exploratory study, the impact of local irradiation on systemic changes in stress and immune parameters was investigated in eight patients treated with intensity-modulated radiation therapy (IMRT) or stereotactic ablative body radiotherapy (SABR) for prostate adenocarcinoma to gain deeper insights into how radiotherapy (RT) modulates the immune system. Patients and methods RT-qPCR, flow cytometry, metabolomics, and antibody arrays were used to monitor a panel of stress- and immune-related parameters before RT, after the first fraction (SABR) or the first week of treatment (IMRT), after the last fraction, and 3 weeks later in the blood of IMRT (N = 4) or SABR (N = 4) patients. Effect size analysis was used for comparison of results at different timepoints. Results Several parameters were found to be differentially modulated in IMRT and SABR patients: the expression of TGFB1, IL1B, and CCL3 genes; the expression of HLA-DR on circulating monocytes; the abundance and ratio of phosphatidylcholine and lysophosphatidylcholine metabolites in plasma. More immune modulators in plasma were modulated during IMRT than SABR, with only two common proteins, namely GDF-15 and Tim‑3. Conclusion Locally delivered RT induces systemic modulation of the immune system in prostate adenocarcinoma patients. IMRT and SABR appear to specifically affect distinct immune components. Electronic supplementary material The online version of this article (10.1007/s00066-020-01637-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- B Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054, Erlangen, Bavaria, Germany
| | - J Mika
- Department of Data Science and Engineering, Silesian University of Technology, 44-100, Gliwice, Poland
| | - K Jelonek
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102, Gliwice, Poland
| | - L Cruz-Garcia
- Centre for Radiation, Chemical and Environmental Hazards, Cancers Mechanisms and Biomarkers group, Public Health England, Chilton, OX11 ORQ, Didcot, Oxfordshire, UK
| | | | - I Testard
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-LCBM-UMR5249, 38054, Grenoble, France
| | - N Cherradi
- Univ. Grenoble Alpes, INSERM, CEA, IRIG-BCI-UMR_S1036, 38054, Grenoble, France
| | - K Lumniczky
- National Public Health Center, 1097, Budapest, Hungary
| | - S Polozov
- Centre for Radiation, Chemical and Environmental Hazards, Cancers Mechanisms and Biomarkers group, Public Health England, Chilton, OX11 ORQ, Didcot, Oxfordshire, UK
- HQ Science Limited, 5 The Quay, PE27 5AR, St. Ives, Cambridgeshire, United Kingdom
| | - A Napieralska
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102, Gliwice, Poland
| | - P Widlak
- Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102, Gliwice, Poland
| | - U S Gaipl
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054, Erlangen, Bavaria, Germany
| | - C Badie
- Centre for Radiation, Chemical and Environmental Hazards, Cancers Mechanisms and Biomarkers group, Public Health England, Chilton, OX11 ORQ, Didcot, Oxfordshire, UK
| | - J Polanska
- Department of Data Science and Engineering, Silesian University of Technology, 44-100, Gliwice, Poland
| | - S M Candéias
- Univ. Grenoble Alpes, CEA, CNRS, IRIG-LCBM-UMR5249, 38054, Grenoble, France.
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10
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Gawlik M, Savic V, Jovanovic M, Skibiński R. Mimicking of Phase I Metabolism Reactions of Molindone by HLM and Photocatalytic Methods with the Use of UHPLC-MS/MS. Molecules 2020; 25:E1367. [PMID: 32192164 PMCID: PMC7144366 DOI: 10.3390/molecules25061367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/14/2020] [Accepted: 03/15/2020] [Indexed: 01/30/2023] Open
Abstract
Establishing the metabolism pathway of the drug undergoing the hepatic biotransformation pathway is one of the most important aspects in the preclinical discovery process since the presence of toxic or reactive metabolites may result in drug withdrawal from the market. In this study, we present the structural elucidation of six, not described yet, metabolites of an antipsychotic molecule: molindone. The elucidation of metabolites was supported with a novel photocatalytical approach with the use of WO3 and WS2 assisted photochemical reactions. An UHPLC-ESI-Q-TOF combined system was used for the registration of all obtained metabolite profiles as well as to record the high resolution fragmentation spectra of the observed transformation products. As a reference in the in vitro metabolism simulation method, the incubation with human liver microsomes was used. Chemometric comparison of the obtained profiles pointed out the use of the WO3 approach as being more convenient in the field of drug metabolism studies. Moreover, the photocatalysis was used in the direction of the main drug metabolite synthesis in order to further isolation and characterization.
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Affiliation(s)
- Maciej Gawlik
- Department of Medicinal Chemistry, Faculty of Pharmacy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
| | - Vladimir Savic
- Department of Organic Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia; (V.S.); (M.J.)
| | - Milos Jovanovic
- Department of Organic Chemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia; (V.S.); (M.J.)
| | - Robert Skibiński
- Department of Medicinal Chemistry, Faculty of Pharmacy, Medical University of Lublin, Jaczewskiego 4, 20-090 Lublin, Poland;
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11
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Kozuka T, Sawada Y, Imai H, Kanai M, Hirai MY, Mano S, Uemura M, Nishimura M, Kusaba M, Nagatani A. Regulation of Sugar and Storage Oil Metabolism by Phytochrome during De-etiolation. Plant Physiol 2020; 182:1114-1129. [PMID: 31748417 PMCID: PMC6997681 DOI: 10.1104/pp.19.00535] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 11/02/2019] [Indexed: 05/02/2023]
Abstract
Exposure of dark-grown (etiolated) seedlings to light induces the heterotrophic-to-photoautotrophic transition (de-etiolation) processes, including the formation of photosynthetic machinery in the chloroplast and cotyledon expansion. Phytochrome is a red (R)/far-red (FR) light photoreceptor that is involved in the various aspects of de-etiolation. However, how phytochrome regulates metabolic dynamics in response to light stimulus has remained largely unknown. In this study, to elucidate the involvement of phytochrome in the metabolic response during de-etiolation, we performed widely targeted metabolomics in Arabidopsis (Arabidopsis thaliana) wild-type and phytochrome A and B double mutant seedlings de-etiolated under R or FR light. The results revealed that phytochrome had strong impacts on the primary and secondary metabolism during the first 24 h of de-etiolation. Among those metabolites, sugar levels decreased during de-etiolation in a phytochrome-dependent manner. At the same time, phytochrome upregulated processes requiring sugars. Triacylglycerols are stored in the oil bodies as a source of sugars in Arabidopsis seedlings. Sugars are provided from triacylglycerols through fatty acid β-oxidation and the glyoxylate cycle in glyoxysomes. We examined if and how phytochrome regulates sugar production from oil bodies. Irradiation of the etiolated seedlings with R and FR light dramatically accelerated oil body mobilization in a phytochrome-dependent manner. Glyoxylate cycle-deficient mutants not only failed to mobilize oil bodies but also failed to develop thylakoid membranes and expand cotyledon cells upon exposure to light. Hence, phytochrome plays a key role in the regulation of metabolism during de-etiolation.
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Affiliation(s)
- Toshiaki Kozuka
- Graduate School of Integrated Science for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526 Japan
| | - Yuji Sawada
- RIKEN Center for Sustainable Resource Science, RIKEN, Yokohama, Kanagawa 230-0045, Japan
| | - Hiroyuki Imai
- United Graduate School of Agricultural Science, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Masatake Kanai
- Department of Cell Biology, National Institute for Basic Biology, Okazaki, Aichi 444-8585, Japan
| | - Masami Yokota Hirai
- RIKEN Center for Sustainable Resource Science, RIKEN, Yokohama, Kanagawa 230-0045, Japan
| | - Shoji Mano
- Department of Cell Biology, National Institute for Basic Biology, Okazaki, Aichi 444-8585, Japan
- Department of Basic Biology, School of Life Science, SOKENDAI (The Graduate University for Advanced Studies), Okazaki, Aichi 444-8585, Japan
| | - Matsuo Uemura
- United Graduate School of Agricultural Science, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Mikio Nishimura
- Department of Cell Biology, National Institute for Basic Biology, Okazaki, Aichi 444-8585, Japan
| | - Makoto Kusaba
- Graduate School of Integrated Science for Life, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526 Japan
| | - Akira Nagatani
- Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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12
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Gramatyka M, Boguszewicz ᴌ, Ciszek M, Gabryś D, Kulik R, Sokół M. Metabolic changes in mice cardiac tissue after low-dose irradiation revealed by 1H NMR spectroscopy. J Radiat Res 2020; 61:14-26. [PMID: 31840756 PMCID: PMC6976729 DOI: 10.1093/jrr/rrz079] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/22/2019] [Accepted: 03/01/2019] [Indexed: 05/08/2023]
Abstract
Ionizing radiation may cause cardiotoxicity not only at high, but even at low (considered as harmless) doses, yet the molecular mechanisms of the heart's response to low doses are not clear. In this work, we used high-resolution nuclear magnetic resonance (NMR) spectroscopy to detect the early and late effects of radiation on the metabolism of murine hearts. The hearts of C57Bl/6NCrl female mice were irradiated in vivo with single 0.2 Gy or 2 Gy doses using 6 MV photons, then tissues were collected 48 h and 20 weeks after exposure. The most distinct changes in the profile of polar metabolites were detected 48 h after irradiation with 2 Gy, and included increased levels of pantothenate and glutamate as well as decreased levels of alanine, malonate, acetylcarnitine, glycine and adenosine. Significant effects of the 2 Gy dose were also observed 20 weeks after irradiation and included decreased levels of glutamine and acetylcarnitine when compared with age-matched controls. Moreover, several differences were observed between hearts irradiated with 2 Gy and analyzed either 48 h or 20 weeks after the exposure, which included changes in levels of acetylcarnitine, alanine, glycine, glutamate, glutamine, formate, myo-inositol and trimethylamine. No statistically significant effects induced by the 0.2 Gy dose were observed 20 weeks after irradiation. In general, radiation-affected compounds were associated with energy metabolism, fatty acid beta-oxidation, oxidative stress and damage to cell structures. At the same time, radiation-related effects were not detected at the level of tissue histology, which indicated a higher sensitivity of metabolomics-based tests for cardiac tissue response to radiation.
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Affiliation(s)
- Michalina Gramatyka
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101 Gliwice, Poland
| | - ᴌukasz Boguszewicz
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101 Gliwice, Poland
| | - Mateusz Ciszek
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101 Gliwice, Poland
| | - Dorota Gabryś
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101 Gliwice, Poland
| | - Roland Kulik
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101 Gliwice, Poland
| | - Maria Sokół
- Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101 Gliwice, Poland
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13
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Abreu AC, Marín P, Aguilera-Sáez LM, Tristán AI, Peña A, Oliveira I, Simões M, Valera D, Fernández I. Effect of a Shading Mesh on the Metabolic, Nutritional, and Defense Profiles of Harvested Greenhouse-Grown Organic Tomato Fruits and Leaves Revealed by NMR Metabolomics. J Agric Food Chem 2019; 67:12972-12985. [PMID: 31709797 DOI: 10.1021/acs.jafc.9b05657] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Controlling the temperature inside a greenhouse during the summer is a problem of increasing importance in the Mediterranean countries, especially in the Spanish southeast. The metabolic profile of greenhouse tomatoes and leaves grown under conventional conditions and within the presence of a shade mesh (∼50% reduction of sunlight radiation) has been monitored. Tomatoes were weekly harvested from May to July 2017 and analyzed by NMR spectroscopy coupled to multivariate data analysis techniques, together with oxygen radical absorbance capacity (ORAC) assays (for antioxidant activity). Fatty acids and carotenoids profiles were unraveled by GC-FID and HPLC-DAD, respectively. To verify whether it would be possible to take advantage of different light growing conditions to potentiate a plant's defense system, leaves of the corresponding plants were collected and their methanolic extracts were analyzed by NMR toward deciphering new biomarkers, which were used to assess their antibacterial and antibiofilm activities. The presence of a shading mesh resulted in a reduction in tomato production and in smaller fruits with lower contents of sugars (glucose and fructose) and carotenoids (lycopene and β-carotene) and higher contents of organic acids, amino acids, and polyunsaturated fatty acids (linoleic and oleic acids) and of phenylpropanoids and flavonoids (which contributed to an increased antioxidant activity). Methanolic extracts of leaves of nonshaded plants showed a higher antibiofilm activity than that from shaded plants. This activity was well-correlated with an increase of phenolic compounds, together with some specific amino acids and organic acids from tomato leaves.
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Affiliation(s)
| | | | | | | | | | - Isabel Oliveira
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Chemical Engineering, Faculty of Engineering , University of Porto , 4099-002 Porto , Portugal
| | - Manuel Simões
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Chemical Engineering, Faculty of Engineering , University of Porto , 4099-002 Porto , Portugal
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14
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Liu YY, Chen XR, Wang JP, Cui WQ, Xing XX, Chen XY, Ding WY, God'spower BO, Eliphaz N, Sun MQ, Li YH. Transcriptomic analysis reveals flavonoid biosynthesis of Syringa oblata Lindl. in response to different light intensity. BMC Plant Biol 2019; 19:487. [PMID: 31711412 PMCID: PMC6849326 DOI: 10.1186/s12870-019-2100-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 10/25/2019] [Indexed: 05/04/2023]
Abstract
BACKGROUND Hazy weather significantly increase air pollution and affect light intensity which may also affect medicinal plants growth. Syringa oblata Lindl. (S. oblata), an effective anti-biofilm medicinal plants, is also vulnerable to changes in plant photoperiods and other abiotic stress responses. Rutin, one of the flavonoids, is the main bioactive ingredient in S. oblata that inhibits Streptococcus suis biofilm formation. Thus, the present study aims to explore the biosynthesis and molecular basis of flavonoids in S. oblata in response to different light intensity. RESULTS In this study, it was shown that compared with natural (Z0) and 25% ~ 35% (Z2) light intensities, the rutin content of S. oblata under 50% ~ 60% (Z1) light intensity increased significantly. In addition, an integrated analysis of metabolome and transcriptome was performed using light intensity stress conditions from two kinds of light intensities which S. oblata was subjected to: Z0 and Z1. The results revealed that differential metabolites and genes were mainly related to the flavonoid biosynthetic pathway. We found out that 13 putative structural genes and a transcription factor bHLH were significantly up-regulated in Z1. Among them, integration analysis showed that 3 putative structural genes including 4CL1, CYP73A and CYP75B1 significantly up-regulated the rutin biosynthesis, suggesting that these putative genes may be involved in regulating the flavonoid biosynthetic pathway, thereby making them key target genes in the whole metabolic process. CONCLUSIONS The present study provided helpful information to search for the novel putative genes that are potential targets for S. oblata in response to light intensity.
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Affiliation(s)
- Yan-Yan Liu
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Xing-Ru Chen
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Jin-Peng Wang
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Wen-Qiang Cui
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Xiao-Xu Xing
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Xue-Ying Chen
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Wen-Ya Ding
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Bello-Onaghise God'spower
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Nsabimana Eliphaz
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Meng-Qing Sun
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China
| | - Yan-Hua Li
- College of Veterinary Medicine, Northeast Agricultural University, 600 Changjiang Road, Xiangfang, Harbin, Heilongjiang, 150030, People's Republic of China.
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin, China.
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15
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Shao Q, Hu L, Qin H, Liu Y, Tang X, Lei A, Wang J. Metabolomic response of Euglena gracilis and its bleached mutant strain to light. PLoS One 2019; 14:e0224926. [PMID: 31697795 PMCID: PMC6837420 DOI: 10.1371/journal.pone.0224926] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 10/24/2019] [Indexed: 12/31/2022] Open
Abstract
Euglena, a new superfood on the market, is a nutrient-rich, green single-celled microorganism that features the characteristics of both plant and animal. When cultivated under different conditions, Euglena produces different bioactive nutrients. Interestingly, Euglena is the only known microorganism whose chloroplasts are easy to lose under stress and become permanently bleached. We applied gas chromatography-mass spectrometry (GC-MS) to determine the metabolomes of wild-type (WT) Euglena gracilis and its bleached mutant OflB2 under light stimulation. We found a significant metabolic difference between WT and OflB2 cells in response to light. An increase of membrane components (phospholipids and acylamides) was observed in WT, while a decrease of some stimulant metabolites was detected in OflB2. These metabolomic changes after light stimulation are of great significance to the development of Euglena chloroplasts and their communications with the nucleus.
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Affiliation(s)
- Qing Shao
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Lang Hu
- College of Life Sciences and Technology, Hubei Engineering University, Xiaogan, China
| | - Huan Qin
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Yerong Liu
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Xing Tang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Anping Lei
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
- * E-mail: (AL); (JW)
| | - Jiangxin Wang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
- * E-mail: (AL); (JW)
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16
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Lee JH, Kwon MC, Jung ES, Lee CH, Oh MM. Physiological and Metabolomic Responses of Kale to Combined Chilling and UV-A Treatment. Int J Mol Sci 2019; 20:E4950. [PMID: 31597250 PMCID: PMC6801958 DOI: 10.3390/ijms20194950] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 09/29/2019] [Accepted: 10/03/2019] [Indexed: 02/07/2023] Open
Abstract
Short-term abiotic stress treatment before harvest can enhance the quality of horticultural crops cultivated in controlled environments. Here, we investigated the effects of combined chilling and UV-A treatment on the accumulation of phenolic compounds in kale (Brassica oleracea var. acephala). Five-week-old plants were subjected to combined treatments (10 °C plus UV-A LED radiation at 30.3 W/m2) for 3-days, as well as single treatments (4 °C, 10 °C, or UV-A LED radiation). The growth parameters and photosynthetic rates of plants under the combined treatment were similar to those of the control, whereas UV-A treatment alone significantly increased these parameters. Maximum quantum yield (Fv/Fm) decreased and H2O2 increased in response to UV-A and combined treatments, implying that these treatments induced stress in kale. The total phenolic contents after 2- and 3-days of combined treatment and 1-day of recovery were 40%, 60%, and 50% higher than those of the control, respectively, and the phenylalanine ammonia-lyase activity also increased. Principal component analysis suggested that stress type and period determine the changes in secondary metabolites. Three days of combined stress treatment followed by 2-days of recovery increased the contents of quercetin derivatives. Therefore, combined chilling and UV-A treatment could improve the phenolic contents of leafy vegetables such as kale, without growth inhibition.
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Affiliation(s)
- Jin-Hui Lee
- Division of Animal, Horticultural and Food Science, Chungbuk National University, Cheongju 28644, Korea.
- Brain Korea 21 Center for Bio-Resource Development, Chungbuk National University, Cheongju 28644, Korea.
| | - Min Cheol Kwon
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea.
| | - Eun Sung Jung
- Department of Systems Biotechnology, Konkuk University, Seoul 05029, Korea.
| | - Choong Hwan Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul 05029, Korea.
- Department of Systems Biotechnology, Konkuk University, Seoul 05029, Korea.
- Research Institute for Bioactive-Metabolome Network, Konkuk University, Seoul 05029, Korea.
| | - Myung-Min Oh
- Division of Animal, Horticultural and Food Science, Chungbuk National University, Cheongju 28644, Korea.
- Brain Korea 21 Center for Bio-Resource Development, Chungbuk National University, Cheongju 28644, Korea.
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17
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Lima VF, Anjos LD, Medeiros DB, Cândido-Sobrinho SA, Souza LP, Gago J, Fernie AR, Daloso DM. The sucrose-to-malate ratio correlates with the faster CO 2 and light stomatal responses of angiosperms compared to ferns. New Phytol 2019; 223:1873-1887. [PMID: 31099898 DOI: 10.1111/nph.15927] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 05/13/2019] [Indexed: 05/24/2023]
Abstract
Stomatal responses to environmental signals differ substantially between ferns and angiosperms. However, the mechanisms that lead to such different responses remain unclear. Here we investigated the extent to which leaf metabolism contributes to coordinate the differential stomatal behaviour among ferns and angiosperms. Stomata from all species were responsive to light and CO2 transitions. However, fern stomatal responses were slower and minor in both absolute and relative terms. Angiosperms have higher stomatal density, but this is not correlated with speed of stomatal closure. The metabolic responses throughout the diel course and under different CO2 conditions differ substantially among ferns and angiosperms. Higher sucrose content and an increased sucrose-to-malate ratio during high CO2 -induced stomatal closure was observed in angiosperms compared to ferns. Furthermore, the speed of stomatal closure was positively and negatively correlated with sugars and organic acids, respectively, suggesting that the balance between sugars and organic acids aids in explaining the faster stomatal responses of angiosperms. Our results suggest that mesophyll-derived metabolic signals, especially those associated with sucrose and malate, may also be important to modulate the differential stomatal behaviour between ferns and angiosperms, providing important new information that helps in understanding the metabolism-mediated mechanisms regulating stomatal movements across land plant evolution.
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Affiliation(s)
- Valéria F Lima
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza-CE, 60451-970, Brasil
| | - Letícia Dos Anjos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza-CE, 60451-970, Brasil
- Departamento de Biologia, Setor de Fisiologia Vegetal, Universidade Federal de Lavras, Lavras-MG, 37200-000, Brasil
| | - David B Medeiros
- Central Metabolism Group, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Silvio A Cândido-Sobrinho
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza-CE, 60451-970, Brasil
| | - Leonardo P Souza
- Central Metabolism Group, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Jorge Gago
- Grupo de Biología de las Plantas en Condiciones Mediterráneas, Departamento de Biología, Universidad de las Islas Baleares/Instituto de investigaciones Agroambientales y de la Economía del Agua (INAGEA), Palma de Mallorca, 07122, Islas Baleares, España
| | - Alisdair R Fernie
- Central Metabolism Group, Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Danilo M Daloso
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Fortaleza-CE, 60451-970, Brasil
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18
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Taraboletti A, Goudarzi M, Kabir A, Moon BH, Laiakis EC, Lacombe J, Ake P, Shoishiro S, Brenner D, Fornace AJ, Zenhausern F. Fabric Phase Sorptive Extraction-A Metabolomic Preprocessing Approach for Ionizing Radiation Exposure Assessment. J Proteome Res 2019; 18:3020-3031. [PMID: 31090424 PMCID: PMC7437658 DOI: 10.1021/acs.jproteome.9b00142] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The modern application of mass spectrometry-based metabolomics to the field of radiation assessment and biodosimetry has allowed for the development of prompt biomarker screenings for radiation exposure. Our previous work on radiation assessment, in easily accessible biofluids (such as urine, blood, saliva), has revealed unique metabolic perturbations in response to radiation quality, dose, and dose rate. Nevertheless, the employment of swift injury assessment in the case of a radiological disaster still remains a challenge as current sample processing can be time consuming and cause sample degradation. To address these concerns, we report a metabolomics workflow using a mass spectrometry-compatible fabric phase sorptive extraction (FPSE) technique. FPSE employs a matrix coated with sol-gel poly(caprolactone-b-dimethylsiloxane-b-caprolactone) that binds both polar and nonpolar metabolites in whole blood, eliminating serum processing steps. We confirm that the FPSE preparation technique combined with liquid chromatography-mass spectrometry can distinguish radiation exposure markers such as taurine, carnitine, arachidonic acid, α-linolenic acid, and oleic acid found 24 h after 8 Gy irradiation. We also note the effect of different membrane fibers on both metabolite extraction efficiency and the temporal stabilization of metabolites in whole blood at room temperature. These findings suggest that the FPSE approach could work in future technology to triage irradiated individuals accurately, via biomarker screening, by providing a novel method to stabilize biofluids between collection and sample analysis.
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Affiliation(s)
- Alexandra Taraboletti
- Department of Oncology, Georgetown University Medical Center, Georgetown University, 3800 Reservoir Road Northwest, Washington, District of Columbia 20057, United States
| | - Maryam Goudarzi
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Georgetown University, 3800 Reservoir Road Northwest, Washington, District of Columbia 20057, United States
- Lerner Research Institute, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, Ohio 44195, United States
| | - Abuzar Kabir
- International Forensic Research Institute, Department of Chemistry and Biochemistry, Florida International University, 11200 Southwest Eighth Street, Miami, Florida 33199, United States
| | - Bo-Hyun Moon
- Department of Oncology, Georgetown University Medical Center, Georgetown University, 3800 Reservoir Road Northwest, Washington, District of Columbia 20057, United States
| | - Evagelia C. Laiakis
- Department of Oncology, Georgetown University Medical Center, Georgetown University, 3800 Reservoir Road Northwest, Washington, District of Columbia 20057, United States
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Georgetown University, 3800 Reservoir Road Northwest, Washington, District of Columbia 20057, United States
| | - Jerome Lacombe
- Center for Applied NanoBiosience and Medicine, University of Arizona, 475 North Fifth Street, Phoenix, Arizona 85004, United States
| | - Pelagie Ake
- Department of Oncology, Georgetown University Medical Center, Georgetown University, 3800 Reservoir Road Northwest, Washington, District of Columbia 20057, United States
| | - Sueoka Shoishiro
- Center for Applied NanoBiosience and Medicine, University of Arizona, 475 North Fifth Street, Phoenix, Arizona 85004, United States
| | - David Brenner
- Center for Radiological Research, Columbia University, 630 West 168th Street, New York, New York 10032, United States
| | - Albert J. Fornace
- Department of Oncology, Georgetown University Medical Center, Georgetown University, 3800 Reservoir Road Northwest, Washington, District of Columbia 20057, United States
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Georgetown University, 3800 Reservoir Road Northwest, Washington, District of Columbia 20057, United States
| | - Frederic Zenhausern
- Center for Applied NanoBiosience and Medicine, University of Arizona, 475 North Fifth Street, Phoenix, Arizona 85004, United States
- Translational Genomics Research Institute, 445 North Fifth Street, Phoenix, Arizona 85004, United States
- Department of Basic Medical Sciences, College of Medicine Phoenix, 425 North Fifth Street, Phoenix, Arizona 85004, United States
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Ullah MA, Tungmunnithum D, Garros L, Drouet S, Hano C, Abbasi BH. Effect of Ultraviolet-C Radiation and Melatonin Stress on Biosynthesis of Antioxidant and Antidiabetic Metabolites Produced in In Vitro Callus Cultures of Lepidium sativum L. Int J Mol Sci 2019; 20:E1787. [PMID: 30978911 PMCID: PMC6479895 DOI: 10.3390/ijms20071787] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 02/06/2023] Open
Abstract
Lepidium sativum L. is a rich source of polyphenols that have huge medicinal and pharmaceutical applications. In the current study, an effective abiotic elicitation strategy was designed for enhanced biosynthesis of polyphenols in callus culture of L. sativum. Callus was exposed to UV-C radiations for different time intervals and various concentrations of melatonin. Secondary metabolites were quantified by using high-performance liquid chromatography (HPLC). Results indicated the total secondary metabolite accumulation of nine quantified compounds was almost three fold higher (36.36 mg/g dry weight (DW)) in melatonin (20 μM) treated cultures, whereas, in response to UV-C (60 min), a 2.5 fold increase (32.33 mg/g DW) was recorded compared to control (13.94 mg/g DW). Metabolic profiling revealed the presence of three major phytochemicals, i.e., chlorogenic acid, kaemferol, and quercetin, in callus culture of L. sativum. Furthermore, antioxidant, antidiabetic, and enzymatic activities of callus cultures were significantly enhanced. Maximum antidiabetic activities (α-glucosidase: 57.84%; α-amylase: 62.66%) were recorded in melatonin (20 μM) treated callus cultures. Overall, melatonin proved to be an effect elicitor compared to UV-C and a positive correlation in these biological activities and phytochemical accumulation was observed. The present study provides a better comparison of both elicitors and their role in the initiation of physiological pathways for enhanced metabolites biosynthesis in vitro callus culture of L. sativum.
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Affiliation(s)
- Muhammad Asad Ullah
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan.
| | - Duangjai Tungmunnithum
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), INRA USC1328, Université d'Orléans, 45067 Orléans CEDEX 2, France.
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Mahidol University, 447 Sri-Ayuthaya Road, Rajathevi, Bangkok 10400, Thailand.
| | - Laurine Garros
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), INRA USC1328, Université d'Orléans, 45067 Orléans CEDEX 2, France.
- Institut de Chimie Organique et Analytique (ICOA) UMR7311, Université d'Orléans-CNRS, 45067 Orléans CEDEX 2, France.
- COSM'ACTIFS, Bioactifs et Cosmétiques, CNRS GDR3711, 45067 Orléans CEDEX 2, France.
| | - Samantha Drouet
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), INRA USC1328, Université d'Orléans, 45067 Orléans CEDEX 2, France.
- COSM'ACTIFS, Bioactifs et Cosmétiques, CNRS GDR3711, 45067 Orléans CEDEX 2, France.
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), INRA USC1328, Université d'Orléans, 45067 Orléans CEDEX 2, France.
- COSM'ACTIFS, Bioactifs et Cosmétiques, CNRS GDR3711, 45067 Orléans CEDEX 2, France.
| | - Bilal Haider Abbasi
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan.
- Laboratoire de Biologie des Ligneux et des Grandes Cultures (LBLGC), INRA USC1328, Université d'Orléans, 45067 Orléans CEDEX 2, France.
- COSM'ACTIFS, Bioactifs et Cosmétiques, CNRS GDR3711, 45067 Orléans CEDEX 2, France.
- EA2106 Biomolécules et Biotechnologies Végétales, Université de Tours, 37000 Tours, France.
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Laiakis EC, Mak TD, Strawn SJ, Wang YW, Moon BH, Ake P, Fornace AJ. Global metabolomic responses in urine from atm deficient mice in response to LD 50/30 gamma irradiation doses. Environ Mol Mutagen 2018; 59:576-585. [PMID: 30095186 PMCID: PMC6113093 DOI: 10.1002/em.22202] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 04/09/2018] [Accepted: 04/15/2018] [Indexed: 06/08/2023]
Abstract
Exposures to ionizing radiation (IR) may either be accidental or intentional, for medical purposes or even through terrorist actions. As certain populations emerge to be more radiosensitive than others, it is imperative to assess those individuals and treat them accordingly. To demonstrate the feasibility of rapid identification of such cases, we utilized the highly radiosensitive mouse model Atm-/- in the C57BL/6 background, and evaluated the urinary responses in 8-10 week old male mice at early time points (4, 24, and 72 h) after exposure to their respective LD50/30 doses [4 Gy for Atm-/- , and 8 Gy for wild type (WT)]. Urinary profiles from heterozygous animals exhibited remarkably similar responses to WT before and after radiation exposure. However, genotypic differences (WT or Atm-/- ) were the primary driver to responses to radiation. Putative metabolites were validated through tandem mass spectrometry and included riboflavin, uric acid, d-ribose, d-glucose, pantothenic acid, taurine, kynurenic acid, xanthurenic acid, 2-oxoadipic acid, glutaric acid, 5'-deoxy-5'-methylthioadenosine, and hippuric acid. These metabolites mapped to several interconnected metabolic pathways which suggest that radiosensitive mouse models have underlying differences significantly impacting overall metabolism. This was further amplified by ionizing radiation at different time points. This study further emphasizes that genetically based radiosensitivity is reflected in the metabolic processes, and can be directly observed in urine. These differences in turn can potentially be used to identify individuals that may require altered medical treatment in an emergency radiological situation or modification of a regimen during a radiotherapy session. Environ. Mol. Mutagen. 59:576-585, 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Evagelia C Laiakis
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA
| | - Tytus D Mak
- Mass Spectrometry Data Center, National Institute of Standards and Technology (NIST), Gaithersburg MD, USA
| | - Steven J Strawn
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA
| | - Yi-Wen Wang
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA
| | - Bo-Hyun Moon
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA
| | - Pelagie Ake
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA
| | - Albert J Fornace
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA
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Chen Z, Coy SL, Pannkuk EL, Laiakis EC, Fornace AJ, Vouros P. Differential Mobility Spectrometry-Mass Spectrometry (DMS-MS) in Radiation Biodosimetry: Rapid and High-Throughput Quantitation of Multiple Radiation Biomarkers in Nonhuman Primate Urine. J Am Soc Mass Spectrom 2018; 29:1650-1664. [PMID: 29736597 PMCID: PMC6287943 DOI: 10.1007/s13361-018-1977-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/19/2018] [Accepted: 04/21/2018] [Indexed: 05/21/2023]
Abstract
High-throughput methods to assess radiation exposure are a priority due to concerns that include nuclear power accidents, the spread of nuclear weapon capability, and the risk of terrorist attacks. Metabolomics, the assessment of small molecules in an easily accessible sample, is the most recent method to be applied for the identification of biomarkers of the biological radiation response with a useful dose-response profile. Profiling for biomarker identification is frequently done using an LC-MS platform which has limited throughput due to the time-consuming nature of chromatography. We present here a chromatography-free simplified method for quantitative analysis of seven metabolites in urine with radiation dose-response using urine samples provided from the Pannkuk et al. (2015) study of long-term (7-day) radiation response in nonhuman primates (NHP). The stable isotope dilution (SID) analytical method consists of sample preparation by strong cation exchange-solid phase extraction (SCX-SPE) to remove interferences and concentrate the metabolites of interest, followed by differential mobility spectrometry (DMS) ion filtration to select the ion of interest and reduce chemical background, followed by mass spectrometry (overall SID-SPE-DMS-MS). Since no chromatography is used, calibration curves were prepared rapidly, in under 2 h (including SPE) for six simultaneously analyzed radiation biomarkers. The seventh, creatinine, was measured separately after 2500× dilution. Creatinine plays a dual role, measuring kidney glomerular filtration rate (GFR), and indicating kidney damage at high doses. The current quantitative method using SID-SPE-DMS-MS provides throughput which is 7.5 to 30 times higher than that of LC-MS and provides a path to pre-clinical radiation dose estimation. Graphical Abstract.
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Affiliation(s)
- Zhidan Chen
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA
| | - Stephen L Coy
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA.
| | - Evan L Pannkuk
- Tumor Biology Program, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA
| | - Evagelia C Laiakis
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, DC, 20057, USA
| | - Albert J Fornace
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, DC, 20057, USA
- Department of Oncology, Georgetown University Medical Center, Washington, DC, 20057, USA
| | - Paul Vouros
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA, 02115, USA.
- Barnett Institute of Chemical and Biological Analysis, Northeastern University, Boston, MA, 02115, USA.
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Gramatyka M, Skorupa A, Sokół M. Nuclear magnetic resonance spectroscopy reveals metabolic changes in living cardiomyocytes after low doses of ionizing radiation. Acta Biochim Pol 2018; 65:309-318. [PMID: 29906297 DOI: 10.18388/abp.2018_2568] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/23/2018] [Accepted: 05/18/2018] [Indexed: 11/10/2022]
Abstract
Several lines of evidence indicate that exposure of heart to ionizing radiation increases the risk of cardiotoxicity manifested by heart dysfunction and cardiovascular diseases. It was initially believed that the heart is an organ relatively resistant to radiation. Currently, however, it is suspected that even low doses of radiation (< 2 Gy) may have a negative impact on the cardiovascular system. Cardiotoxicity of ionizing radiation is associated with metabolic changes observed in cardiac cells injured by radiation. In this study, we used human cardiomyocytes as a model system, and studied their metabolic response to radiation using high-resolution magic angle spinning nuclear magnetic resonance techniques (HR-MAS NMR). Human cardiomyocytes cultured in vitro were exposed to ionizing radiation and their survival was assessed by clonogenic assay. Changes in apoptosis intensity and cell cycle distribution after the irradiation were measured as well. NMR spectra of cardiomyocytes were acquired using Bruker Avance 400 MHz spectrometer at a spinning rate of 3200 Hz. Survival of cardiomyocytes after NMR experiments was assessed by the Trypan blue exclusion assay. Exposure of cardiomyocytes to small doses of ionizing radiation had no effect on cell proliferation potential and intensity of cell death. However, analysis of metabolic profiles revealed changes in lipids, threonine, glycine, glycerophosphocholine, choline, valine, isoleucine, glutamate, reduced glutathione and taurine metabolism. The results of this study showed that ionizing radiation affects metabolic profiles of cardiomyocytes even at low doses, which potentially have no effect on cell viability.
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Affiliation(s)
- Michalina Gramatyka
- Department of Medical Physics, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Agnieszka Skorupa
- Department of Medical Physics, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland
| | - Maria Sokół
- Department of Medical Physics, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland
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23
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Pannkuk EL, Laiakis EC, Fornace AJ, Fatanmi OO, Singh VK. A Metabolomic Serum Signature from Nonhuman Primates Treated with a Radiation Countermeasure, Gamma-tocotrienol, and Exposed to Ionizing Radiation. Health Phys 2018; 115:3-11. [PMID: 29787425 PMCID: PMC5967639 DOI: 10.1097/hp.0000000000000776] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The search for and development of radiation countermeasures to treat acute lethal radiation injury has been underway for the past six decades, resulting in the identification of multiple classes of radiation countermeasures. However, to date only granulocyte colony-stimulating factor (Neupogen) and PEGylated granulocyte colony-stimulating factor (Neulasta) have been approved by the U.S. Food and Drug Administration for the treatment of hematopoietic acute radiation syndrome. Gamma-tocotrienol has demonstrated radioprotective efficacy in murine and nonhuman primate models. Currently, this agent is under advanced development as a radioprotector, and the authors are trying to identify its efficacy biomarkers. In this study, global metabolomic changes were analyzed using ultraperformance liquid chromatography quadrupole time-of-flight mass spectrometry. The pilot study using 16 nonhuman primates (8 nonhuman primates each in gamma-tocotrienol- and vehicle-treated groups), with samples obtained from gamma-tocotrienol-treated and irradiated nonhuman primates, demonstrates several metabolites that are altered after irradiation, including compounds involved in fatty acid beta-oxidation, purine catabolism, and amino acid metabolism. The machine-learning algorithm, Random Forest, separated control, irradiated gamma-tocotrienol-treated, and irradiated vehicle-treated nonhuman primates at 12 h and 24 h as evident in a multidimensional scaling plot. Primary metabolites validated included carnitine/acylcarnitines, amino acids, creatine, and xanthine. Overall, gamma-tocotrienol administration reduced high fluctuations in serum metabolite levels, suggesting an overall beneficial effect on animals exposed to radiation. This initial assessment also highlights the utility of metabolomics in determining underlying physiological mechanisms responsible for the radioprotective efficacy of gamma-tocotrienol.
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Affiliation(s)
- Evan L. Pannkuk
- Tumor Biology Program, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA
| | - Evagelia C. Laiakis
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC, 20057, USA
| | - Albert J. Fornace
- Tumor Biology Program, Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC, 20057, USA
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC, 20057, USA
| | - Oluseyi O. Fatanmi
- Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
| | - Vijay K. Singh
- Department of Pharmacology and Molecular Therapeutics, F. Edward Hébert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA
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Roh C. Metabolomics in Radiation-Induced Biological Dosimetry: A Mini-Review and a Polyamine Study. Biomolecules 2018; 8:biom8020034. [PMID: 29844258 PMCID: PMC6023017 DOI: 10.3390/biom8020034] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 05/18/2018] [Accepted: 05/25/2018] [Indexed: 01/09/2023] Open
Abstract
In this study, we elucidate that polyamine metabolite is a powerful biomarker to study post-radiation changes. Metabolomics in radiation biodosimetry, the application of a metabolomics analysis to the field of radiobiology, promises to increase the understanding of biological responses by ionizing radiation (IR). Radiation exposure triggers a complex network of molecular and cellular responses that impacts metabolic processes and alters the levels of metabolites. Such metabolites have potential as biomarkers for radiation dosimetry. Among metabolites, polyamine is one of many potential biomarkers to estimate radiation response. In addition, this review provides an opportunity for the understanding of a radiation metabolomics in biodosimetry and a polyamine case study.
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Affiliation(s)
- Changhyun Roh
- Biotechnology Research Division, Advanced Radiation Technology Institute (ARTI), Korea Atomic Energy Research Institute (KAERI), 29, Geumgu-gil, Jeongeup-si, Jeonbuk 56212, Korea.
- Radiation Biotechnology and Applied Radioisotope Science, University of Science Technology (UST), 217 Gajeong-ro, Daejeon 34113, Korea.
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Qin Z, Jia C, Liao D, Chen X, Li X. Comparison of Serum Metabolite Changes of Radiated Mice Administered with Panax quinquefolium from Different Cultivation Regions Using UPLC-Q/TOF-MS Based Metabolomic Approach. Molecules 2018; 23:E1014. [PMID: 29701672 PMCID: PMC6102546 DOI: 10.3390/molecules23051014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 04/22/2018] [Accepted: 04/24/2018] [Indexed: 02/08/2023] Open
Abstract
Chemometric analysis of bioactive compounds revealed that American ginsengs (AGs) from different cultivation regions of China had a difference in quality, which indicates their possible pharmacological difference. A UPLC-Q/TOF-MS-based untargeted metabolomic approach was used to uncover serum metabolite changes in radiated mice pre-administered with AG root decoctions from seven cultivation regions and to further assess their quality difference. OPLS-DA revealed that 51 metabolites (ESI−) and 110 (ESI⁺) were differentially expressed in sera between the control and the radiated model mice. Heatmap analysis further revealed that AG could not reverse most of these radiation-altered metabolites, which indicates dietary supplement of AG before cobalt radiation had the weak potential to mediate serum metabolites that were altered by the sub-lethal high dose radiation. In addition, 83 (ESI−) and 244 (ESI⁺) AG altered metabolites were detected in radiated mice under radiation exposure. Both OPLS-DA on serum metabolomes and heatmap analysis on discriminant metabolites showed that AGs from different cultivation regions differentially influenced metabolic alterations in radiated mice, which indicates AGs from different cultivation regions showed the pharmacological difference in modulation of metabolite changes. AGs from Shandong, Shanxi, and Beijing provinces had more similar pharmacological effects than AGs from USA, Canada, Jilin, and Heilongjiang. Finally, 28 important potential biomarkers were annotated and assigned onto three metabolic pathways including lipid, amino acid, and energy metabolisms.
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Affiliation(s)
- Zhenxian Qin
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
| | - Chan Jia
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
| | - Dengqun Liao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
| | - Xiaofang Chen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
| | - Xian'en Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China.
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26
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Celeste Dias M, Pinto DCGA, Correia C, Moutinho-Pereira J, Oliveira H, Freitas H, Silva AMS, Santos C. UV-B radiation modulates physiology and lipophilic metabolite profile in Olea europaea. J Plant Physiol 2018; 222:39-50. [PMID: 29407548 DOI: 10.1016/j.jplph.2018.01.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 12/27/2017] [Accepted: 01/02/2018] [Indexed: 05/25/2023]
Abstract
Ultraviolet-B (UV-B) radiation plays an important role in plant photomorphogenesis. Whilst the morpho-functional disorders induced by excessive UV irradiation are well-known, it remains unclear how this irradiation modulates the metabolome, and which metabolic shifts improve plants' tolerance to UV-B. In this study, we use an important Mediterranean crop, Olea europaea, to decipher the impacts of enhanced UV-B radiation on the physiological performance and lipophilic metabolite profile. Young olive plants (cv. 'Galega Vulgar') were exposed for five days to UV-B biologically effective doses of 6.5 kJ m-2 d-1 and 12.4 kJ m-2 d-1. Cell cycle/ploidy, photosynthesis and oxidative stress, as well as GC-MS metabolites were assessed. Both UV-B treatments impaired net CO2 assimilation rate, transpiration rate, photosynthetic pigments, and RuBisCO activity, but 12.4 kJ m-2 d-1 also decreased the photochemical quenching (qP) and the effective efficiency of PSII (ΦPSII). UV-B treatments promoted mono/triperpene pathways, while only 12.4 kJ m-2 d-1 increased fatty acids and alkanes, and decreased geranylgeranyl-diphosphate. The interplay between physiology and metabolomics suggests some innate ability of these plants to tolerate moderate UV-B doses (6.5 kJ m-2 d-1). Also their tolerance to higher doses (12.4 kJ m-2 d-1) relies on plants' metabolic adjustments, where the accumulation of specific compounds such as long-chain alkanes, palmitic acid, oleic acid and particularly oleamide (which is described for the first time in olive leaves) play an important protective role. This is the first study demonstrating photosynthetic changes and lipophilic metabolite adjustments in olive leaves under moderate and high UV-B doses.
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Affiliation(s)
- Maria Celeste Dias
- Department of Life Sciences & CFE, Faculty of Sciences and Technologies, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Diana C G A Pinto
- Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Carlos Correia
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801 Vila Real, Portugal
| | - José Moutinho-Pereira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes e Alto Douro, Apt. 1013, 5000-801 Vila Real, Portugal
| | - Helena Oliveira
- Department Biology & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Department of Chemistry & CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Helena Freitas
- Department of Life Sciences & CFE, Faculty of Sciences and Technologies, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Artur M S Silva
- Department of Chemistry & QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Conceição Santos
- Department of Biology, LAQV/REQUIMTE, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
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Miyagi A, Kitano S, Oono Y, Hase Y, Narumi I, Yamaguchi M, Uchimiya H, Kawai-Yamada M. Evaluation of metabolic changes in oxalate-rich plant Rumex obtusifolius L. caused by ion beam irradiation. Plant Physiol Biochem 2018; 122:40-45. [PMID: 29172104 DOI: 10.1016/j.plaphy.2017.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/16/2017] [Accepted: 11/03/2017] [Indexed: 06/07/2023]
Abstract
Some Rumex species such as sorrel are edible as baby leaf salad greens. On the other hand, Rumex plants accumulate soluble oxalate, a toxic metabolite which causes serious diseases such as renal syndrome. We attempted to produce low-oxalate plants of R. obtusifolius, a perennial weed which has higher vitamin C and amino acid content and higher tolerance to stress than many other Rumex species. Ion beams are ionising radiation with high linear energy transfer that causes a wide spectrum of mutations. Thus, in the present study we evaluated the effects of ion beams on oxalate and other primary metabolites in leaves of R. obtusifolius using CE-MS. The results showed that oxalate content was increased by irradiation with carbon ion beams. Metabolome analysis revealed that ion beams affected carbon flow to the isocitrate pathway, which is involved in oxalate synthesis. These observations suggested that modulation of carbon flow to the isocitrate pathway is important to regulate oxalate levels in plants.
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Affiliation(s)
- Atsuko Miyagi
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama-city, Saitama 338-8570, Japan
| | - Sayaka Kitano
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama-city, Saitama 338-8570, Japan
| | - Yutaka Oono
- Quantum Beam Science Research Directorate, National Institutes for Quantum and Radiological Science and Technology, 1233 Watanuki, Takasaki-city, Gunma 370-1292, Japan
| | - Yoshihiro Hase
- Quantum Beam Science Research Directorate, National Institutes for Quantum and Radiological Science and Technology, 1233 Watanuki, Takasaki-city, Gunma 370-1292, Japan
| | - Issay Narumi
- Quantum Beam Science Research Directorate, National Institutes for Quantum and Radiological Science and Technology, 1233 Watanuki, Takasaki-city, Gunma 370-1292, Japan
| | - Masatoshi Yamaguchi
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama-city, Saitama 338-8570, Japan; PRESTO, Japan Science and Technology Agency, 4-1-8 Honmachi, Kawaguchi-city, Saitama 332-0012, Japan
| | - Hirofumi Uchimiya
- Institute for Environmental Science and Technology, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama-city, Saitama 338-8570, Japan
| | - Maki Kawai-Yamada
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama-city, Saitama 338-8570, Japan.
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Jung ES, Park HM, Hyun SM, Shon JC, Singh D, Liu KH, Whon TW, Bae JW, Hwang JS, Lee CH. The green tea modulates large intestinal microbiome and exo/endogenous metabolome altered through chronic UVB-exposure. PLoS One 2017; 12:e0187154. [PMID: 29117187 PMCID: PMC5695601 DOI: 10.1371/journal.pone.0187154] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 10/13/2017] [Indexed: 01/22/2023] Open
Abstract
The attenuating effects of green tea supplements (GTS) against the ultraviolet (UV) radiation induced skin damages are distinguished. However, the concomitant effects of GTS on the large intestinal microbiomes and associated metabolomes are largely unclear. Herein, we performed an integrated microbiome-metabolome analysis to uncover the esoteric links between gut microbiome and exo/endogenous metabolome maneuvered in the large intestine of UVB-exposed mice subjected to dietary GTS. In UVB-exposed mice groups (UVB), class Bacilli and order Bifidobacteriales were observed as discriminant taxa with decreased lysophospholipid levels compared to the unexposed mice groups subjected to normal diet (NOR). Conversely, in GTS fed UVB-exposed mice (U+GTS), the gut-microbiome diversity was greatly enhanced with enrichment in the classes, Clostridia and Erysipelotrichia, as well as genera, Allobaculum and Lachnoclostridium. Additionally, the gut endogenous metabolomes changed with an increase in amino acids, fatty acids, lipids, and bile acids contents coupled with a decrease in nucleobases and carbohydrate levels. The altered metabolomes exhibited high correlations with GTS enriched intestinal microflora. Intriguingly, the various conjugates of green tea catechins viz., sulfated, glucuronided, and methylated ones including their exogenous derivatives were detected from large intestinal contents and liver samples. Hence, we conjecture that the metabolic conversions for the molecular components in GTS strongly influenced the gut micro-environment in UVB-exposed mice groups, ergo modulate their gut-microbiome as well as exo/endogenous metabolomes.
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Affiliation(s)
- Eun Sung Jung
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - Hye Min Park
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - Seung Min Hyun
- Department of Genetic Engineering & Graduate School of Biotechnology, Kyung Hee University, Yongin, Republic of Korea
| | - Jong Cheol Shon
- College of Pharmacy and Research Institute of Pharmaceutical Science, Kyungpook National University, Daegu, Republic of Korea
| | - Digar Singh
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - Kwang-Hyeon Liu
- College of Pharmacy and Research Institute of Pharmaceutical Science, Kyungpook National University, Daegu, Republic of Korea
| | - Tae Woong Whon
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, Republic of Korea
| | - Jin-Woo Bae
- Department of Life and Nanopharmaceutical Sciences and Department of Biology, Kyung Hee University, Seoul, Republic of Korea
| | - Jae Sung Hwang
- Department of Genetic Engineering & Graduate School of Biotechnology, Kyung Hee University, Yongin, Republic of Korea
- * E-mail: (JSH); (CHL)
| | - Choong Hwan Lee
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
- * E-mail: (JSH); (CHL)
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29
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Mengin V, Pyl ET, Alexandre Moraes T, Sulpice R, Krohn N, Encke B, Stitt M. Photosynthate partitioning to starch in Arabidopsis thaliana is insensitive to light intensity but sensitive to photoperiod due to a restriction on growth in the light in short photoperiods. Plant Cell Environ 2017; 40:2608-2627. [PMID: 28628949 DOI: 10.1111/pce.13000] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 05/12/2017] [Accepted: 05/15/2017] [Indexed: 05/18/2023]
Abstract
Photoperiod duration can be predicted from previous days, but irradiance fluctuates in an unpredictable manner. To investigate how allocation to starch responds to changes in these two environmental variables, Arabidopsis Col-0 was grown in a 6 h and a 12 h photoperiod at three different irradiances. The absolute rate of starch accumulation increased when photoperiod duration was shortened and when irradiance was increased. The proportion of photosynthate allocated to starch increased strongly when photoperiod duration was decreased but only slightly when irradiance was decreased. There was a small increase in the daytime level of sucrose and twofold increases in glucose, fructose and glucose 6-phosphate at a given irradiance in short photoperiods compared to long photoperiods. The rate of starch accumulation correlated strongly with sucrose and glucose levels in the light, irrespective of whether these sugars were responding to a change in photoperiod or irradiance. Whole plant carbon budget modelling revealed a selective restriction of growth in the light period in short photoperiods. It is proposed that photoperiod sensing, possibly related to the duration of the night, restricts growth in the light period in short photoperiods, increasing allocation to starch and providing more carbon reserves to support metabolism and growth in the long night.
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Affiliation(s)
- Virginie Mengin
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Eva-Theresa Pyl
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | | | - Ronan Sulpice
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
- NUI Galway, Plant Systems Biology Laboratory, Plant and AgriBiosciences Research Centre, School of Natural Sciences, Galway, H91 TK33, Ireland
| | - Nicole Krohn
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Beatrice Encke
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Mark Stitt
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
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Casero D, Gill K, Sridharan V, Koturbash I, Nelson G, Hauer-Jensen M, Boerma M, Braun J, Cheema AK. Space-type radiation induces multimodal responses in the mouse gut microbiome and metabolome. Microbiome 2017; 5:105. [PMID: 28821301 PMCID: PMC5563039 DOI: 10.1186/s40168-017-0325-z] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 08/08/2017] [Indexed: 05/19/2023]
Abstract
BACKGROUND Space travel is associated with continuous low dose rate exposure to high linear energy transfer (LET) radiation. Pathophysiological manifestations after low dose radiation exposure are strongly influenced by non-cytocidal radiation effects, including changes in the microbiome and host gene expression. Although the importance of the gut microbiome in the maintenance of human health is well established, little is known about the role of radiation in altering the microbiome during deep-space travel. RESULTS Using a mouse model for exposure to high LET radiation, we observed substantial changes in the composition and functional potential of the gut microbiome. These were accompanied by changes in the abundance of multiple metabolites, which were related to the enzymatic activity of the predicted metagenome by means of metabolic network modeling. There was a complex dynamic in microbial and metabolic composition at different radiation doses, suggestive of transient, dose-dependent interactions between microbial ecology and signals from the host's cellular damage repair processes. The observed radiation-induced changes in microbiota diversity and composition were analyzed at the functional level. A constitutive change in activity was found for several pathways dominated by microbiome-specific enzymatic reactions like carbohydrate digestion and absorption and lipopolysaccharide biosynthesis, while the activity in other radiation-responsive pathways like phosphatidylinositol signaling could be linked to dose-dependent changes in the abundance of specific taxa. CONCLUSIONS The implication of microbiome-mediated pathophysiology after low dose ionizing radiation may be an unappreciated biologic hazard of space travel and deserves experimental validation. This study provides a conceptual and analytical basis of further investigations to increase our understanding of the chronic effects of space radiation on human health, and points to potential new targets for intervention in adverse radiation effects.
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Affiliation(s)
- David Casero
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Kirandeep Gill
- Department of Oncology, Georgetown University Medical Center, Washington DC, 20057, USA
| | - Vijayalakshmi Sridharan
- Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA
| | - Igor Koturbash
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA
| | - Gregory Nelson
- Department of Radiation Medicine, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Martin Hauer-Jensen
- Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA
| | - Marjan Boerma
- Division of Radiation Health, University of Arkansas for Medical Sciences, Little Rock, AR, 72205, USA
| | - Jonathan Braun
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Amrita K Cheema
- Department of Oncology, Georgetown University Medical Center, Washington DC, 20057, USA.
- Department of Biochemistry and Molecular and & Cellular Biology, Georgetown University Medical Center, Washington, DC, 20057, USA.
- GCD-7N Pre-Clinical Science Building, 3900 Reservoir Road NW, Washington DC, 20057, USA.
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Abstract
The effects of ionizing radiation to human health are of great concern in the field of space exploration and for patients considering radiotherapy. However, to date, the effect of high-dose radiation on metabolism in the liver has not been clearly defined. In this study, 1H nuclear magnetic resonance (NMR)-based metabolomics combined with multivariate data analysis was applied to study the changes of metabolism in the liver of C57BL/6 mouse after whole-body gamma (3.0 and 7.8 Gy) or proton (3.0 Gy) irradiation. Principal component analysis (PCA) and orthogonal projection to latent structures analysis (OPLS) were used for classification and identification of potential biomarkers associated with exposure to gamma and proton radiation. The results show that the radiation exposed groups can be well separated from the control group. Where the same dose was received, the proton exposed group was nevertheless well separated from the gamma-exposed group, indicating that different radiation sources induce different alterations in the metabolic profile. Common among all high-dose gamma and proton exposed groups were the statistically decreased concentrations of choline, O-phosphocholine and trimethylamine N-oxide, while the concentrations of glutamine, glutathione, malate, creatinine, phosphate, betaine and 4-hydroxyphenylacetate were statistically and significantly elevated. Since these altered metabolites are associated with multiple biological pathways, the results suggest that radiation induces abnormality in multiple biological pathways. In particular, metabolites such as 4-hydroxyphenylacetate, betaine, glutamine, choline and trimethylamine N-oxide may be prediagnostic biomarkers candidates for ionizing exposure of the liver.
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Affiliation(s)
- Xiongjie Xiao
- Pacific Northwest National Laboratory, Richland, Washington 99352
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan, 430071, PR China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mary Hu
- Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Xu Zhang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, the Chinese Academy of Sciences, Wuhan, 430071, PR China
| | - Jian Zhi Hu
- Pacific Northwest National Laboratory, Richland, Washington 99352
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32
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Laiakis EC, Wang YW, Young EF, Harken AD, Xu Y, Smilenov L, Garty GY, Brenner DJ, Fornace AJ. Metabolic Dysregulation after Neutron Exposures Expected from an Improvised Nuclear Device. Radiat Res 2017; 188:21-34. [PMID: 28475424 PMCID: PMC5714588 DOI: 10.1667/rr14656.1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The increased threat of terrorism across the globe has raised fears that certain groups will acquire and use radioactive materials to inflict maximum damage. In the event that an improvised nuclear device (IND) is detonated, a potentially large population of victims will require assessment for radiation exposure. While photons will contribute to a major portion of the dose, neutrons may be responsible for the severity of the biologic effects and cellular responses. We investigated differences in response between these two radiation types by using metabolomics and lipidomics to identify biomarkers in urine and blood of wild-type C57BL/6 male mice. Identification of metabolites was based on a 1 Gy dose of radiation. Compared to X rays, a neutron spectrum similar to that encountered in Hiroshima at 1-1.5 km from the epicenter induced a severe metabolic dysregulation, with perturbations in amino acid metabolism and fatty acid β-oxidation being the predominant ones. Urinary metabolites were able to discriminate between neutron and X rays on day 1 as well as day 7 postirradiation, while serum markers showed such discrimination only on day 1. Free fatty acids from omega-6 and omega-3 pathways were also decreased with 1 Gy of neutrons, implicating cell membrane dysfunction and impaired phospholipid metabolism, which should otherwise lead to release of those molecules in circulation. While a precise relative biological effectiveness value could not be calculated from this study, the results are consistent with other published studies showing higher levels of damage from neutrons, demonstrated here by increased metabolic dysregulation. Metabolomics can therefore aid in identifying global perturbations in blood and urine, and effectively distinguishing between neutron and photon exposures.
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Affiliation(s)
| | - Yi-Wen Wang
- Department of Infectious Diseases, The Scripps Research Institute, Jupiter, Florida
| | | | - Andrew D. Harken
- Radiological Research Accelerator Facility, Columbia University, Irvington, New York
| | - Yanping Xu
- Radiological Research Accelerator Facility, Columbia University, Irvington, New York
- Department of Physics, East Carolina University, Greenville, North Carolina
| | - Lubomir Smilenov
- Center for Radiological Research, Columbia University, New York, New York
| | - Guy Y. Garty
- Radiological Research Accelerator Facility, Columbia University, Irvington, New York
| | - David J. Brenner
- Center for Radiological Research, Columbia University, New York, New York
| | - Albert J. Fornace
- Department of Biochemistry and Molecular and Cellular Biology
- Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
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33
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Iizuka D, Yoshioka S, Kawai H, Izumi S, Suzuki F, Kamiya K. Metabolomic screening using ESI-FT MS identifies potential radiation-responsive molecules in mouse urine. J Radiat Res 2017; 58:273-280. [PMID: 27974505 PMCID: PMC5619916 DOI: 10.1093/jrr/rrw112] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 09/23/2016] [Indexed: 05/24/2023]
Abstract
The demand for establishment of high-throughput biodosimetric methods is increasing. Our aim in this study was to identify low-molecular-weight urinary radiation-responsive molecules using electrospray ionization Fourier transform mass spectrometry (ESI-FT MS), and our final goal was to develop a sensitive biodosimetry technique that can be applied in the early triage of a radiation emergency medical system. We identified nine metabolites by statistical comparison of mouse urine before and 8 h after irradiation. Time-course analysis showed that, of these metabolites, thymidine and either thymine or imidazoleacetic acid were significantly increased dose-dependently 8 h after radiation exposure; these molecules have already been reported as potential radiation biomarkers. Phenyl glucuronide was significantly decreased 8 h after radiation exposure, irrespective of the dose. Histamine and 1-methylhistamine were newly identified by MS/MS and showed significant, dose-dependent increases 72 h after irradiation. Quantification of 1-methylhistamine by enzyme-linked immunosorbent assay (ELISA) analysis also showed a significant increase 72 h after 4 Gy irradiation. These results suggest that urinary metabolomics screening using ESI-FT MS can be a powerful tool for identifying promising radiation-responsive molecules, and that urinary 1-methylhistamine is a potential radiation-responsive molecule for acute, high-dose exposure.
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Affiliation(s)
- Daisuke Iizuka
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
- Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, 1-3-2, Kagamiyama, Higashi-Hiroshima 739-8511, Japan
| | - Susumu Yoshioka
- Department of Molecular Radiobiology, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Hidehiko Kawai
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
- Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, 1-3-2, Kagamiyama, Higashi-Hiroshima 739-8511, Japan
| | - Shunsuke Izumi
- Department of Molecular Radiobiology, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Fumio Suzuki
- Department of Mathematical and Life Sciences, Graduate School of Science, Hiroshima University, 1-3-2, Kagamiyama, Higashi-Hiroshima 739-8511, Japan
| | - Kenji Kamiya
- Department of Experimental Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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34
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Florez-Sarasa I, Noguchi K, Araújo WL, Garcia-Nogales A, Fernie AR, Flexas J, Ribas-Carbo M. Impaired Cyclic Electron Flow around Photosystem I Disturbs High-Light Respiratory Metabolism. Plant Physiol 2016; 172:2176-2189. [PMID: 27760881 PMCID: PMC5129710 DOI: 10.1104/pp.16.01025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 10/14/2016] [Indexed: 05/02/2023]
Abstract
The cyclic electron flow around photosystem I (CEF-PSI) increases ATP/NADPH production in the chloroplast, acting as an energy balance mechanism. Higher export of reducing power from the chloroplast in CEF-PSI mutants has been correlated with higher mitochondrial alternative oxidase (AOX) capacity and protein amount under high-light (HL) conditions. However, in vivo measurements of AOX activity are still required to confirm the exact role of AOX in dissipating the excess of reductant power from the chloroplast. Here, CEF-PSI single and double mutants were exposed to short-term HL conditions in Arabidopsis (Arabidopsis thaliana). Chlorophyll fluorescence, in vivo activities of the cytochrome oxidase (νcyt) and AOX (νalt) pathways, levels of mitochondrial proteins, metabolite profiles, and pyridine nucleotide levels were determined under normal growth and HL conditions. νalt was not increased in CEF-PSI mutants, while AOX capacity was positively correlated with photoinhibition, probably due to a reactive oxygen species-induced increase of AOX protein. The severe metabolic impairment observed in CEF-PSI mutants, as indicated by the increase in photoinhibition and changes in the levels of stress-related metabolites, can explain their lack of νalt induction. By contrast, νcyt was positively correlated with photosynthetic performance. Correlations with metabolite changes suggest that νcyt is coordinated with sugar metabolism and stress-related amino acid synthesis. Furthermore, changes in glycine-serine and NADH-NAD+ ratios were highly correlated to νcyt Taken together, our results suggest that νcyt can act as a sink for the excess of electrons from the chloroplast, probably via photorespiratory glycine oxidation, thus improving photosynthetic performance when νalt is not induced under severe HL stress.
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Affiliation(s)
- Igor Florez-Sarasa
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (I.F.-S., A.R.F.)
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan (K.N.)
- Max-Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Vicosa, Minas Gerais 36570-000, Brazil (W.L.A.)
- Área de Ecología, Departamento Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Seville, Spain (A.G.-N.); and
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain (J.F., M.R.-C.)
| | - Ko Noguchi
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (I.F.-S., A.R.F.)
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan (K.N.)
- Max-Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Vicosa, Minas Gerais 36570-000, Brazil (W.L.A.)
- Área de Ecología, Departamento Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Seville, Spain (A.G.-N.); and
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain (J.F., M.R.-C.)
| | - Wagner L Araújo
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (I.F.-S., A.R.F.)
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan (K.N.)
- Max-Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Vicosa, Minas Gerais 36570-000, Brazil (W.L.A.)
- Área de Ecología, Departamento Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Seville, Spain (A.G.-N.); and
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain (J.F., M.R.-C.)
| | - Ana Garcia-Nogales
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (I.F.-S., A.R.F.)
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan (K.N.)
- Max-Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Vicosa, Minas Gerais 36570-000, Brazil (W.L.A.)
- Área de Ecología, Departamento Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Seville, Spain (A.G.-N.); and
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain (J.F., M.R.-C.)
| | - Alisdair R Fernie
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (I.F.-S., A.R.F.)
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan (K.N.)
- Max-Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Vicosa, Minas Gerais 36570-000, Brazil (W.L.A.)
- Área de Ecología, Departamento Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Seville, Spain (A.G.-N.); and
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain (J.F., M.R.-C.)
| | - Jaume Flexas
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (I.F.-S., A.R.F.)
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan (K.N.)
- Max-Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Vicosa, Minas Gerais 36570-000, Brazil (W.L.A.)
- Área de Ecología, Departamento Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Seville, Spain (A.G.-N.); and
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain (J.F., M.R.-C.)
| | - Miquel Ribas-Carbo
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476 Potsdam-Golm, Germany (I.F.-S., A.R.F.);
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan (K.N.);
- Max-Planck Partner Group at the Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Vicosa, Minas Gerais 36570-000, Brazil (W.L.A.);
- Área de Ecología, Departamento Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, 41013 Seville, Spain (A.G.-N.); and
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain (J.F., M.R.-C.)
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Jin H, Li M, Duan S, Fu M, Dong X, Liu B, Feng D, Wang J, Wang HB. Optimization of Light-Harvesting Pigment Improves Photosynthetic Efficiency. Plant Physiol 2016; 172:1720-1731. [PMID: 27609860 PMCID: PMC5100765 DOI: 10.1104/pp.16.00698] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 09/01/2016] [Indexed: 05/05/2023]
Abstract
Maximizing light capture by light-harvesting pigment optimization represents an attractive but challenging strategy to improve photosynthetic efficiency. Here, we report that loss of a previously uncharacterized gene, HIGH PHOTOSYNTHETIC EFFICIENCY1 (HPE1), optimizes light-harvesting pigments, leading to improved photosynthetic efficiency and biomass production. Arabidopsis (Arabidopsis thaliana) hpe1 mutants show faster electron transport and increased contents of carbohydrates. HPE1 encodes a chloroplast protein containing an RNA recognition motif that directly associates with and regulates the splicing of target RNAs of plastid genes. HPE1 also interacts with other plastid RNA-splicing factors, including CAF1 and OTP51, which share common targets with HPE1. Deficiency of HPE1 alters the expression of nucleus-encoded chlorophyll-related genes, probably through plastid-to-nucleus signaling, causing decreased total content of chlorophyll (a+b) in a limited range but increased chlorophyll a/b ratio. Interestingly, this adjustment of light-harvesting pigment reduces antenna size, improves light capture, decreases energy loss, mitigates photodamage, and enhances photosynthetic quantum yield during photosynthesis. Our findings suggest a novel strategy to optimize light-harvesting pigments that improves photosynthetic efficiency and biomass production in higher plants.
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Affiliation(s)
- Honglei Jin
- State Key Laboratory of Biocontrol and Collaborative Innovation Center of Genetics and Development, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China
| | - Mengshu Li
- State Key Laboratory of Biocontrol and Collaborative Innovation Center of Genetics and Development, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China
| | - Sujuan Duan
- State Key Laboratory of Biocontrol and Collaborative Innovation Center of Genetics and Development, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China
| | - Mei Fu
- State Key Laboratory of Biocontrol and Collaborative Innovation Center of Genetics and Development, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China
| | - Xiaoxiao Dong
- State Key Laboratory of Biocontrol and Collaborative Innovation Center of Genetics and Development, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China
| | - Bing Liu
- State Key Laboratory of Biocontrol and Collaborative Innovation Center of Genetics and Development, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China
| | - Dongru Feng
- State Key Laboratory of Biocontrol and Collaborative Innovation Center of Genetics and Development, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China
| | - Jinfa Wang
- State Key Laboratory of Biocontrol and Collaborative Innovation Center of Genetics and Development, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China
| | - Hong-Bin Wang
- State Key Laboratory of Biocontrol and Collaborative Innovation Center of Genetics and Development, Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China
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Ueno M, Sae-Tang P, Kusama Y, Hihara Y, Matsuda M, Hasunuma T, Nishiyama Y. Moderate Heat Stress Stimulates Repair of Photosystem II During Photoinhibition in Synechocystis sp. PCC 6803. Plant Cell Physiol 2016; 57:2417-2426. [PMID: 27565206 DOI: 10.1093/pcp/pcw153] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
Examination of the effects of high temperature on the photoinhibition of photosystem II (PSII) in the cyanobacterium Synechocystis sp. PCC 6803 revealed that the extent of photoinhibition of PSII was lower at moderately high temperatures (35-42 °C) than at 30 °C. Photodamage to PSII, as determined in the presence of chloramphenicol, which blocks the repair of PSII, was accelerated at the moderately high temperatures but the effects of repair were greater than those of photodamage. The synthesis de novo of the D1 protein, which is essential for the repair of PSII, was enhanced at 38 °C. Electron transport and the synthesis of ATP were also enhanced at 38 °C, while levels of reactive oxygen species fell. Inhibition of the Calvin-Benson cycle with glycolaldehyde abolished the enhancement of repair of PSII at 38 °C, suggesting that an increase in the activity of the Calvin-Benson cycle might be required for the enhancement of repair at moderately high temperatures. The synthesis de novo of metabolic intermediates of the Calvin-Benson cycle, such as 3-phosphoglycerate, was also enhanced at 38 °C. We propose that moderate heat stress might enhance the repair of PSII by stimulating the synthesis of ATP and depressing the production of reactive oxygen species, via the stimulation of electron transport and suppression of the accumulation of excess electrons on the acceptor side of photosystem I, which might be driven by an increase in the activity of the Calvin-Benson cycle.
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Affiliation(s)
- Mamoru Ueno
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Penporn Sae-Tang
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Yuri Kusama
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Yukako Hihara
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
- Institute for Environmental Science and Technology, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Mami Matsuda
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Tomohisa Hasunuma
- Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan
| | - Yoshitaka Nishiyama
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
- Institute for Environmental Science and Technology, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
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Popko J, Herrfurth C, Feussner K, Ischebeck T, Iven T, Haslam R, Hamilton M, Sayanova O, Napier J, Khozin-Goldberg I, Feussner I. Metabolome Analysis Reveals Betaine Lipids as Major Source for Triglyceride Formation, and the Accumulation of Sedoheptulose during Nitrogen-Starvation of Phaeodactylum tricornutum. PLoS One 2016; 11:e0164673. [PMID: 27736949 PMCID: PMC5063337 DOI: 10.1371/journal.pone.0164673] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 09/28/2016] [Indexed: 11/18/2022] Open
Abstract
Oleaginous microalgae are considered as a promising resource for the production of biofuels. Especially diatoms arouse interest as biofuel producers since they are most productive in carbon fixation and very flexible to environmental changes in the nature. Naturally, triacylglycerol (TAG) accumulation in algae only occurs under stress conditions like nitrogen-limitation. We focused on Phaeodactylum strain Pt4 (UTEX 646), because of its ability to grow in medium with low salinity and therefore being suited when saline water is less available or for wastewater cultivation strategies. Our data show an increase in neutral lipids during nitrogen-depletion and predominantly 16:0 and 16:1(n-7) accumulated in the TAG fraction. The molecular species composition of TAG suggests a remodeling primarily from the betaine lipid diacylglyceroltrimethylhomoserine (DGTS), but a contribution of the chloroplast galactolipid monogalactosyldiacylglycerol (MGDG) cannot be excluded. Interestingly, the acyl-CoA pool is rich in 20:5(n-3) and 22:6(n-3) in all analyzed conditions, but these fatty acids are almost excluded from TAG. Other metabolites most obviously depleted under nitrogen-starvation were amino acids, lyso-phospholipids and tricarboxylic acid (TCA) cycle intermediates, whereas sulfur-containing metabolites as dimethylsulfoniopropionate, dimethylsulfoniobutyrate and methylsulfate as well as short acyl chain carnitines, propanoyl-carnitine and butanoyl-carnitine increased upon nitrogen-starvation. Moreover, the Calvin cycle may be de-regulated since sedoheptulose accumulated after nitrogen-depletion. Together the data provide now the basis for new strategies to improve lipid production and storage in Phaeodactylum strain Pt4.
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Affiliation(s)
- Jennifer Popko
- Georg-August-University, Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
| | - Cornelia Herrfurth
- Georg-August-University, Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
| | - Kirstin Feussner
- Georg-August-University, Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
| | - Till Ischebeck
- Georg-August-University, Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
| | - Tim Iven
- Georg-August-University, Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
| | - Richard Haslam
- Rothamsted Research, Biological Chemistry, Harpenden, AL5 2JQ, United Kingdom
| | - Mary Hamilton
- Rothamsted Research, Biological Chemistry, Harpenden, AL5 2JQ, United Kingdom
| | - Olga Sayanova
- Rothamsted Research, Biological Chemistry, Harpenden, AL5 2JQ, United Kingdom
| | - Jonathan Napier
- Rothamsted Research, Biological Chemistry, Harpenden, AL5 2JQ, United Kingdom
| | - Inna Khozin-Goldberg
- Microalgal Biotechnology Laboratory, The French Associates Institute for Agriculture and Biotechnology of Drylands, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus 8499000, Midreshet Ben-Gurion, Israel
| | - Ivo Feussner
- Georg-August-University, Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
- Georg-August-University, Goettingen Center for Molecular Biosciences (GZMB), Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
- Georg-August-University, International Center for Advanced Studies of Energy Conversion (ICASEC), Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, 37077, Göttingen, Germany
- * E-mail:
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Florez-Sarasa I, Ribas-Carbo M, Del-Saz NF, Schwahn K, Nikoloski Z, Fernie AR, Flexas J. Unravelling the in vivo regulation and metabolic role of the alternative oxidase pathway in C3 species under photoinhibitory conditions. New Phytol 2016; 212:66-79. [PMID: 27321208 DOI: 10.1111/nph.14030] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 04/23/2016] [Indexed: 06/06/2023]
Abstract
The mitochondrial alternative oxidase pathway (AOP) has been suggested to act as a sink for excess reducing power generated in the chloroplast under high-light (HL) stress and thus may reduce photoinhibition. The aim of this study was to compare different species to investigate the in vivo regulation and role of AOP under HL stress. The in vivo activities of AOP (νalt ) and the cytochrome oxidase pathway, chlorophyll fluorescence, metabolite profiles, alternative oxidase (AOX) capacity and protein amount were determined in leaves of five C3 species under growth light and after HL treatment. Differences in respiration and metabolite levels were observed among species under growth light conditions. The HL response of νalt was highly species dependent, correlated with the AOP capacity and independent of AOX protein content. Nevertheless, significant correlations were observed between νalt , levels of key metabolites and photosynthetic parameters. The results show that the species-specific response of νalt is caused by the differential post-translational regulation of AOX. Significant correlations between respiration, metabolites and photosynthetic performance across species suggest that AOP may permit stress-related amino acid synthesis, whilst maintaining photosynthetic activity under HL stress.
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Affiliation(s)
- Igor Florez-Sarasa
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Miquel Ribas-Carbo
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, Carretera de Valldemossa Km 7.5, 07122, Palma de Mallorca, Spain
| | - Néstor Fernández Del-Saz
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, Carretera de Valldemossa Km 7.5, 07122, Palma de Mallorca, Spain
| | - Kevin Schwahn
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Zoran Nikoloski
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Alisdair R Fernie
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, Am Mühlenberg 1, 14476, Potsdam-Golm, Germany
| | - Jaume Flexas
- Grup de Recerca en Biologia de les Plantes en Condicions Mediterranies, Departament de Biologia, Universitat de les Illes Balears, Carretera de Valldemossa Km 7.5, 07122, Palma de Mallorca, Spain
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Czedik-Eysenberg A, Arrivault S, Lohse MA, Feil R, Krohn N, Encke B, Nunes-Nesi A, Fernie AR, Lunn JE, Sulpice R, Stitt M. The Interplay between Carbon Availability and Growth in Different Zones of the Growing Maize Leaf. Plant Physiol 2016; 172:943-967. [PMID: 27582314 PMCID: PMC5047066 DOI: 10.1104/pp.16.00994] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 08/26/2016] [Indexed: 05/18/2023]
Abstract
Plants assimilate carbon in their photosynthetic tissues in the light. However, carbon is required during the night and in nonphotosynthetic organs. It is therefore essential that plants manage their carbon resources spatially and temporally and coordinate growth with carbon availability. In growing maize (Zea mays) leaf blades, a defined developmental gradient facilitates analyses in the cell division, elongation, and mature zones. We investigated the responses of the metabolome and transcriptome and polysome loading, as a qualitative proxy for protein synthesis, at dusk, dawn, and 6, 14, and 24 h into an extended night, and tracked whole-leaf elongation over this time course. Starch and sugars are depleted by dawn in the mature zone, but only after an extension of the night in the elongation and division zones. Sucrose (Suc) recovers partially between 14 and 24 h into the extended night in the growth zones, but not the mature zone. The global metabolome and transcriptome track these zone-specific changes in Suc. Leaf elongation and polysome loading in the growth zones also remain high at dawn, decrease between 6 and 14 h into the extended night, and then partially recover, indicating that growth processes are determined by local carbon status. The level of Suc-signaling metabolite trehalose-6-phosphate, and the trehalose-6-phosphate:Suc ratio are much higher in growth than mature zones at dusk and dawn but fall in the extended night. Candidate genes were identified by searching for transcripts that show characteristic temporal response patterns or contrasting responses to carbon starvation in growth and mature zones.
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Affiliation(s)
- Angelika Czedik-Eysenberg
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - Stéphanie Arrivault
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - Marc A Lohse
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - Regina Feil
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - Nicole Krohn
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - Beatrice Encke
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - Adriano Nunes-Nesi
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - Alisdair R Fernie
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - John E Lunn
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - Ronan Sulpice
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
| | - Mark Stitt
- Gregor-Mendel-Institute of Molecular Plant Biology, 1030 Vienna, Austria (A.C.-E.);Max Planck Institute of Molecular Plant Physiology, 14476 Potsdam, Germany (S.A., R.F., N.K., B.E., A.R.F., J.E.L., M.S.);Targenomix GmbH, 14476 Potsdam, Germany (M.A.L.);Departamento de Biologia Vegetal, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais State, Brasil (A.N.-N.); andPlant Systems Biology Lab, Plant AgriBiosciences, C314 Aras de Brun, National University of Ireland, Galway, Ireland (R.S.)
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Laiakis EC, Pannkuk EL, Diaz-Rubio ME, Wang YW, Mak TD, Simbulan-Rosenthal CM, Brenner DJ, Fornace AJ. Implications of genotypic differences in the generation of a urinary metabolomics radiation signature. Mutat Res 2016; 788:41-9. [PMID: 27040378 PMCID: PMC4887295 DOI: 10.1016/j.mrfmmm.2016.03.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 03/04/2016] [Accepted: 03/24/2016] [Indexed: 02/04/2023]
Abstract
The increased threat of radiological terrorism and accidental nuclear exposures, together with increased usage of radiation-based medical procedures, has made necessary the development of minimally invasive methods for rapid identification of exposed individuals. Genetically predisposed radiosensitive individuals comprise a significant number of the population and require specialized attention and treatments after such events. Metabolomics, the assessment of the collective small molecule content in a given biofluid or tissue, has proven effective in the rapid identification of radiation biomarkers and metabolic perturbations. To investigate how the genotypic background may alter the ionizing radiation (IR) signature, we analyzed urine from Parp1(-/-) mice, as a model radiosensitive genotype, exposed to IR by utilizing the analytical power of liquid chromatography coupled with mass spectrometry (LC-MS), as urine has been thoroughly investigated in wild type (WT) mice in previous studies from our laboratory. Samples were collected at days one and three after irradiation, time points that are important for the early and efficient triage of exposed individuals. Time-dependent perturbations in metabolites were observed in the tricarboxylic acid pathway (TCA). Other differentially excreted metabolites included amino acids and metabolites associated with dysregulation of energy metabolism pathways. Time-dependent apoptotic pathway activation between WT and mutant mice following IR exposure may explain the altered excretion patterns, although the origin of the metabolites remains to be determined. This first metabolomics study in urine from radiation exposed genetic mutant animal models provides evidence that this technology can be used to dissect the effects of genotoxic agents on metabolism by assessing easily accessible biofluids and identify biomarkers of radiation exposure. Applications of metabolomics could be incorporated in the future to further elucidate the effects of IR on the metabolism of Parp1(-/-) genotype by assessing individual tissues.
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Affiliation(s)
- Evagelia C Laiakis
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA.
| | - Evan L Pannkuk
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA
| | - Maria Elena Diaz-Rubio
- Pediatrics, Division of Developmental Nutrition, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Yi-Wen Wang
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA
| | - Tytus D Mak
- Mass Spectrometry Data Center, National Institute of Standards and Technology (NIST), Gaithersburg MD, USA
| | | | | | - Albert J Fornace
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University, Washington DC, USA; Lombardi Comprehensive Cancer Center, Georgetown University, Washington DC, USA; Center of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, Jeddah 22254, Saudi Arabia
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Lauxmann MA, Annunziata MG, Brunoud G, Wahl V, Koczut A, Burgos A, Olas JJ, Maximova E, Abel C, Schlereth A, Soja AM, Bläsing OE, Lunn JE, Vernoux T, Stitt M. Reproductive failure in Arabidopsis thaliana under transient carbohydrate limitation: flowers and very young siliques are jettisoned and the meristem is maintained to allow successful resumption of reproductive growth. Plant Cell Environ 2016; 39:745-67. [PMID: 26351840 DOI: 10.1111/pce.12634] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 08/21/2015] [Accepted: 08/24/2015] [Indexed: 05/21/2023]
Abstract
The impact of transient carbon depletion on reproductive growth in Arabidopsis was investigated by transferring long-photoperiod-grown plants to continuous darkness and returning them to a light-dark cycle. After 2 days of darkness, carbon reserves were depleted in reproductive sinks, and RNA in situ hybridization of marker transcripts showed that carbon starvation responses had been initiated in the meristem, anthers and ovules. Dark treatments of 2 or more days resulted in a bare-segment phenotype on the floral stem, with 23-27 aborted siliques. These resulted from impaired growth of immature siliques and abortion of mature and immature flowers. Depolarization of PIN1 protein and increased DII-VENUS expression pointed to rapid collapse of auxin gradients in the meristem and inhibition of primordia initiation. After transfer back to a light-dark cycle, flowers appeared and formed viable siliques and seeds. A similar phenotype was seen after transfer to sub-compensation point irradiance or CO2 . It also appeared in a milder form after a moderate decrease in irradiance and developed spontaneously in short photoperiods. We conclude that Arabidopsis inhibits primordia initiation and aborts flowers and very young siliques in C-limited conditions. This curtails demand, safeguarding meristem function and allowing renewal of reproductive growth when carbon becomes available again.
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Affiliation(s)
- Martin A Lauxmann
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Maria G Annunziata
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Géraldine Brunoud
- Laboratoire de Reproduction et Développement des Plantes, CNRS, INRA, ENS Lyon, UCBL, Université de Lyon, Lyon, 69364, France
| | - Vanessa Wahl
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Andrzej Koczut
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Asdrubal Burgos
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Justyna J Olas
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Eugenia Maximova
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Christin Abel
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Armin Schlereth
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Aleksandra M Soja
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Oliver E Bläsing
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
- Metanomics GmbH, Tegeler Weg 33, Berlin, 10589, Germany
| | - John E Lunn
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
| | - Teva Vernoux
- Laboratoire de Reproduction et Développement des Plantes, CNRS, INRA, ENS Lyon, UCBL, Université de Lyon, Lyon, 69364, France
| | - Mark Stitt
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, 14476, Germany
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Mekonnen DW, Flügge UI, Ludewig F. Gamma-aminobutyric acid depletion affects stomata closure and drought tolerance of Arabidopsis thaliana. Plant Sci 2016; 245:25-34. [PMID: 26940489 DOI: 10.1016/j.plantsci.2016.01.005] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 01/13/2016] [Accepted: 01/20/2016] [Indexed: 05/20/2023]
Abstract
A rapid accumulation of γ-aminobutyric acid (GABA) during biotic and abiotic stresses is well documented. However, the specificity of the response and the primary role of GABA under such stress conditions are hardly understood. To address these questions, we investigated the response of the GABA-depleted gad1/2 mutant to drought stress. GABA is primarily synthesized from the decarboxylation of glutamate by glutamate decarboxylase (GAD) which exists in five copies in the genome of Arabidopsis thaliana. However, only GAD1 and GAD2 are abundantly expressed, and knockout of these two copies dramatically reduced the GABA content. Phenotypic analysis revealed a reduced shoot growth of the gad1/2 mutant. Furthermore, the gad1/2 mutant was wilted earlier than the wild type following a prolonged drought stress treatment. The early-wilting phenotype was due to an increase in stomata aperture and a defect in stomata closure. The increase in stomata aperture contributed to higher stomatal conductance. The drought oversensitive phenotype of the gad1/2 mutant was reversed by functional complementation that increases GABA level in leaves. The functionally complemented gad1/2 x pop2 triple mutant contained more GABA than the wild type. Our findings suggest that GABA accumulation during drought is a stress-specific response and its accumulation induces the regulation of stomatal opening thereby prevents loss of water.
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Affiliation(s)
- Dereje Worku Mekonnen
- Botanical Institute II, Cologne Biocenter, University of Cologne, Zülpicher Str. 47b, 50674 Cologne, Germany.
| | - Ulf-Ingo Flügge
- Botanical Institute II, Cologne Biocenter, University of Cologne, Zülpicher Str. 47b, 50674 Cologne, Germany.
| | - Frank Ludewig
- Botanical Institute II, Cologne Biocenter, University of Cologne, Zülpicher Str. 47b, 50674 Cologne, Germany; Division of Biochemistry, Department Biology, University Erlangen-Nuremberg, Staudtstr. 5, 91058 Erlangen, Germany.
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Shahbazi-Gahrouei D, Shiri L, Alaei H, Naghdi N. The effect of continuous ELF-MFs on the level of 5-HIAA in the raphe nucleus of the rat. J Radiat Res 2016; 57:127-32. [PMID: 26811259 PMCID: PMC4795953 DOI: 10.1093/jrr/rrv093] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/03/2015] [Accepted: 10/19/2015] [Indexed: 06/05/2023]
Abstract
The aim of this study was to investigate the effect of continuous extremely low frequency magnetic fields (ELF-MFs) with a frequency of 10 Hz and an intensity of 690-720 μT on the level of 5-hydroxyindolacetic acid (5-HIAA) in adult male Wistar rats. A total of 24 adult Wistar male rats were used, and after exposure with an ELF-MF for 15 successive days, all rats in each test were anesthetized with chloral hydrate. Then, they were placed in a stereotaxic frame for surgery and a microdialysis process. Dialysate samples were analyzed to measure the amount of 5-HIAA by high performance liquid chromatography (HPLC) using electrochemical detection. Results showed that ELF-MF exposure for 15 days, 1 h daily, was not effective in altering the level of 5-HIAA. However, ELF-MF exposure for 15 days, 3 h daily, decreased the level of the 5-HIAA in the raphe nucleus. It can be concluded that ELF-MFs affect the serotonergic system and may be used to treat nervous system diseases. This study is an initial step towards helping cure depression using ELF-MFs.
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Affiliation(s)
- Daryoush Shahbazi-Gahrouei
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Leila Shiri
- Department of Medical Physics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hojjatollah Alaei
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Naser Naghdi
- Department of Physiology, Pasteur Institute, Tehran, Iran
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Ramabulana T, Mavunda RD, Steenkamp PA, Piater LA, Dubery IA, Madala NE. Secondary metabolite perturbations in Phaseolus vulgaris leaves due to gamma radiation. Plant Physiol Biochem 2015; 97:287-95. [PMID: 26512968 DOI: 10.1016/j.plaphy.2015.10.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 10/13/2015] [Accepted: 10/14/2015] [Indexed: 05/24/2023]
Abstract
Oxidative stress is a condition in which the balance between the production and elimination of reactive oxygen species (ROS) is disturbed. However, plants have developed a very sophisticated mechanism to mitigate the effect of ROS by constantly adjusting the concentration thereof to acceptable levels. Electromagnetic radiation is one of the factors which results in oxidative stress. In the current study, ionizing gamma radiation generated from a Cobalt-60 source was used to induce oxidative stress in Phaseolus vulgaris seedlings. Plants were irradiated with several radiation doses, with 2 kGy found to be the optimal, non-lethal dose. Metabolite distribution patterns from irradiated and non-irradiated plants were analyzed using UHPLC-qTOF-MS and multivariate data models such as principal component analysis (PCA) and orthogonal projection to latent structures discriminate analysis (OPLS-DA). Metabolites such as hydroxycinnamic phenolic acids, flavonoids, terpenes, and a novel chalcone were found to be perturbed in P. vulgaris seedlings treated with the aforementioned conditions. The results suggest that there is a compensatory link between constitutive protectants and inducible responses to injury as well as defense against oxidative stress induced by ionizing radiation. The current study is also the first to illustrate the power of a metabolomics approach to decipher the effect of gamma radiation on crop plants.
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Affiliation(s)
- T Ramabulana
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - R D Mavunda
- Department of Physics, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa; NECSA, P.O. Box 582, Pretoria, 0001, South Africa
| | - P A Steenkamp
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa; CSIR Biosciences, Natural Products and Agroprocessing Group, Pretoria, 0001, South Africa
| | - L A Piater
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - I A Dubery
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa
| | - N E Madala
- Department of Biochemistry, University of Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa.
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Lakshmanan M, Lim SH, Mohanty B, Kim JK, Ha SH, Lee DY. Unraveling the Light-Specific Metabolic and Regulatory Signatures of Rice through Combined in Silico Modeling and Multiomics Analysis. Plant Physiol 2015; 169:3002-20. [PMID: 26453433 PMCID: PMC4677915 DOI: 10.1104/pp.15.01379] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 10/07/2015] [Indexed: 05/21/2023]
Abstract
Light quality is an important signaling component upon which plants orchestrate various morphological processes, including seed germination and seedling photomorphogenesis. However, it is still unclear how plants, especially food crops, sense various light qualities and modulate their cellular growth and other developmental processes. Therefore, in this work, we initially profiled the transcripts of a model crop, rice (Oryza sativa), under four different light treatments (blue, green, red, and white) as well as in the dark. Concurrently, we reconstructed a fully compartmentalized genome-scale metabolic model of rice cells, iOS2164, containing 2,164 unique genes, 2,283 reactions, and 1,999 metabolites. We then combined the model with transcriptome profiles to elucidate the light-specific transcriptional signatures of rice metabolism. Clearly, light signals mediated rice gene expressions, differentially regulating numerous metabolic pathways: photosynthesis and secondary metabolism were up-regulated in blue light, whereas reserve carbohydrates degradation was pronounced in the dark. The topological analysis of gene expression data with the rice genome-scale metabolic model further uncovered that phytohormones, such as abscisate, ethylene, gibberellin, and jasmonate, are the key biomarkers of light-mediated regulation, and subsequent analysis of the associated genes' promoter regions identified several light-specific transcription factors. Finally, the transcriptional control of rice metabolism by red and blue light signals was assessed by integrating the transcriptome and metabolome data with constraint-based modeling. The biological insights gained from this integrative systems biology approach offer several potential applications, such as improving the agronomic traits of food crops and designing light-specific synthetic gene circuits in microbial and mammalian systems.
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Affiliation(s)
- Meiyappan Lakshmanan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576 (M.L., B.M., D.-Y.L.);Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668 (M.L., D.-Y.L.);Metabolic Engineering Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju 560-500, Republic of Korea (S.-H.L.);Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 406-772, Republic of Korea (J.K.K.); andDepartment of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 446-701, Republic of Korea (S.-H.H.)
| | - Sun-Hyung Lim
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576 (M.L., B.M., D.-Y.L.);Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668 (M.L., D.-Y.L.);Metabolic Engineering Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju 560-500, Republic of Korea (S.-H.L.);Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 406-772, Republic of Korea (J.K.K.); andDepartment of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 446-701, Republic of Korea (S.-H.H.)
| | - Bijayalaxmi Mohanty
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576 (M.L., B.M., D.-Y.L.);Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668 (M.L., D.-Y.L.);Metabolic Engineering Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju 560-500, Republic of Korea (S.-H.L.);Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 406-772, Republic of Korea (J.K.K.); andDepartment of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 446-701, Republic of Korea (S.-H.H.)
| | - Jae Kwang Kim
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576 (M.L., B.M., D.-Y.L.);Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668 (M.L., D.-Y.L.);Metabolic Engineering Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju 560-500, Republic of Korea (S.-H.L.);Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 406-772, Republic of Korea (J.K.K.); andDepartment of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 446-701, Republic of Korea (S.-H.H.)
| | - Sun-Hwa Ha
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576 (M.L., B.M., D.-Y.L.);Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668 (M.L., D.-Y.L.);Metabolic Engineering Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju 560-500, Republic of Korea (S.-H.L.);Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 406-772, Republic of Korea (J.K.K.); andDepartment of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 446-701, Republic of Korea (S.-H.H.)
| | - Dong-Yup Lee
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117576 (M.L., B.M., D.-Y.L.);Bioprocessing Technology Institute, Agency for Science, Technology and Research, Singapore 138668 (M.L., D.-Y.L.);Metabolic Engineering Division, National Academy of Agricultural Science, Rural Development Administration, Jeonju 560-500, Republic of Korea (S.-H.L.);Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 406-772, Republic of Korea (J.K.K.); andDepartment of Genetic Engineering and Graduate School of Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 446-701, Republic of Korea (S.-H.H.)
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Bahaji A, Baroja-Fernández E, Ricarte-Bermejo A, Sánchez-López ÁM, Muñoz FJ, Romero JM, Ruiz MT, Baslam M, Almagro G, Sesma MT, Pozueta-Romero J. Characterization of multiple SPS knockout mutants reveals redundant functions of the four Arabidopsis sucrose phosphate synthase isoforms in plant viability, and strongly indicates that enhanced respiration and accelerated starch turnover can alleviate the blockage of sucrose biosynthesis. Plant Sci 2015; 238:135-47. [PMID: 26259182 DOI: 10.1016/j.plantsci.2015.06.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 06/04/2015] [Accepted: 06/06/2015] [Indexed: 05/08/2023]
Abstract
We characterized multiple knock-out mutants of the four Arabidopsis sucrose phosphate synthase (SPSA1, SPSA2, SPSB and SPSC) isoforms. Despite their reduced SPS activity, spsa1/spsa2, spsa1/spsb, spsa2/spsb, spsa2/spsc, spsb/spsc, spsa1/spsa2/spsb and spsa2/spsb/spsc mutants displayed wild type (WT) vegetative and reproductive morphology, and showed WT photosynthetic capacity and respiration. In contrast, growth of rosettes, flowers and siliques of the spsa1/spsc and spsa1/spsa2/spsc mutants was reduced compared with WT plants. Furthermore, these plants displayed a high dark respiration phenotype. spsa1/spsb/spsc and spsa1/spsa2/spsb/spsc seeds poorly germinated and produced aberrant and sterile plants. Leaves of all viable sps mutants, except spsa1/spsc and spsa1/spsa2/spsc, accumulated WT levels of nonstructural carbohydrates. spsa1/spsc leaves possessed high levels of metabolic intermediates and activities of enzymes of the glycolytic and tricarboxylic acid cycle pathways, and accumulated high levels of metabolic intermediates of the nocturnal starch-to-sucrose conversion process, even under continuous light conditions. Results presented in this work show that SPS is essential for plant viability, reveal redundant functions of the four SPS isoforms in processes that are important for plant growth and nonstructural carbohydrate metabolism, and strongly indicate that accelerated starch turnover and enhanced respiration can alleviate the blockage of sucrose biosynthesis in spsa1/spsc leaves.
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Affiliation(s)
- Abdellatif Bahaji
- Instituto de Agrobiotecnología (CSIC/UPNA/Gobierno de Navarra), Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Edurne Baroja-Fernández
- Instituto de Agrobiotecnología (CSIC/UPNA/Gobierno de Navarra), Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Adriana Ricarte-Bermejo
- Instituto de Agrobiotecnología (CSIC/UPNA/Gobierno de Navarra), Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Ángela María Sánchez-López
- Instituto de Agrobiotecnología (CSIC/UPNA/Gobierno de Navarra), Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Francisco José Muñoz
- Instituto de Agrobiotecnología (CSIC/UPNA/Gobierno de Navarra), Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Jose M Romero
- Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla-CSIC, Avenida Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain
| | - María Teresa Ruiz
- Instituto de Bioquímica Vegetal y Fotosíntesis, Universidad de Sevilla-CSIC, Avenida Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain
| | - Marouane Baslam
- Instituto de Agrobiotecnología (CSIC/UPNA/Gobierno de Navarra), Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Goizeder Almagro
- Instituto de Agrobiotecnología (CSIC/UPNA/Gobierno de Navarra), Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - María Teresa Sesma
- Instituto de Agrobiotecnología (CSIC/UPNA/Gobierno de Navarra), Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Javier Pozueta-Romero
- Instituto de Agrobiotecnología (CSIC/UPNA/Gobierno de Navarra), Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain.
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Van Hoeck A, Horemans N, Van Hees M, Nauts R, Knapen D, Vandenhove H, Blust R. β-Radiation Stress Responses on Growth and Antioxidative Defense System in Plants: A Study with Strontium-90 in Lemna minor. Int J Mol Sci 2015; 16:15309-27. [PMID: 26198226 PMCID: PMC4519901 DOI: 10.3390/ijms160715309] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 06/23/2015] [Accepted: 06/26/2015] [Indexed: 11/25/2022] Open
Abstract
In the following study, dose dependent effects on growth and oxidative stress induced by β-radiation were examined to gain better insights in the mode of action of β-radiation induced stress in plant species. Radiostrontium (⁹⁰Sr) was used to test for β-radiation induced responses in the freshwater macrophyte Lemna minor. The accumulation pattern of 90Sr was examined for L. minor root and fronds separately over a seven-day time period and was subsequently used in a dynamic dosimetric model to calculate β-radiation dose rates. Exposing L. minor plants for seven days to a ⁹⁰Sr activity concentration of 25 up to 25,000 kBq·L⁻¹ resulted in a dose rate between 0.084 ± 0.004 and 97 ± 8 mGy·h⁻¹. After seven days of exposure, root fresh weight showed a dose dependent decrease starting from a dose rate of 9.4 ± 0.5 mGy·h⁻¹. Based on these data, an EDR10 value of 1.5 ± 0.4 mGy·h⁻¹ was estimated for root fresh weight and 52 ± 17 mGy·h⁻¹ for frond fresh weight. Different antioxidative enzymes and metabolites were further examined to analyze if β-radiation induces oxidative stress in L. minor.
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Affiliation(s)
- Arne Van Hoeck
- SCK•CEN, Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium.
- Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium.
| | - Nele Horemans
- SCK•CEN, Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium.
- Centre for Environmental Research, University of Hasselt, Universiteitslaan 1, 3590 Diepenbeek, Belgium.
| | - May Van Hees
- SCK•CEN, Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium.
| | - Robin Nauts
- SCK•CEN, Belgian Nuclear Research Centre, Boeretang 200, 2400 Mol, Belgium.
| | - Dries Knapen
- Veterinary Sciences, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium.
| | | | - Ronny Blust
- Department of Biology, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium.
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Timm S, Wittmiß M, Gamlien S, Ewald R, Florian A, Frank M, Wirtz M, Hell R, Fernie AR, Bauwe H. Mitochondrial Dihydrolipoyl Dehydrogenase Activity Shapes Photosynthesis and Photorespiration of Arabidopsis thaliana. Plant Cell 2015; 27:1968-84. [PMID: 26116608 PMCID: PMC4531348 DOI: 10.1105/tpc.15.00105] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 05/19/2015] [Accepted: 06/15/2015] [Indexed: 05/18/2023]
Abstract
Mitochondrial dihydrolipoyl dehydrogenase (mtLPD; L-protein) is an integral component of several multienzyme systems involved in the tricarboxylic acid (TCA) cycle, photorespiration, and the degradation of branched-chain α-ketoacids. The majority of the mtLPD present in photosynthesizing tissue is used for glycine decarboxylase (GDC), necessary for the high-flux photorespiratory glycine-into-serine conversion. We previously suggested that GDC activity could be a signal in a regulatory network that adjusts carbon flux through the Calvin-Benson cycle in response to photorespiration. Here, we show that elevated GDC L-protein activity significantly alters several diagnostic parameters of cellular metabolism and leaf gas exchange in Arabidopsis thaliana. Overexpressor lines displayed markedly decreased steady state contents of TCA cycle and photorespiratory intermediates as well as elevated NAD(P)(+)-to-NAD(P)H ratios. Additionally, increased rates of CO2 assimilation, photorespiration, and plant growth were observed. Intriguingly, however, day respiration rates remained unaffected. By contrast, respiration was enhanced in the first half of the dark phase but depressed in the second. We also observed enhanced sucrose biosynthesis in the light in combination with a lower diel magnitude of starch accumulation and breakdown. These data thus substantiate our prior hypothesis that facilitating flux through the photorespiratory pathway stimulates photosynthetic CO2 assimilation in the Calvin-Benson cycle. They furthermore suggest that this regulation is, at least in part, dependent on increased light-capture/use efficiency.
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Affiliation(s)
- Stefan Timm
- Plant Physiology Department, University of Rostock, D-18051 Rostock, Germany
| | - Maria Wittmiß
- Plant Physiology Department, University of Rostock, D-18051 Rostock, Germany
| | - Sabine Gamlien
- Plant Physiology Department, University of Rostock, D-18051 Rostock, Germany
| | - Ralph Ewald
- Plant Physiology Department, University of Rostock, D-18051 Rostock, Germany
| | - Alexandra Florian
- Max Planck Institute of Molecular Plant Physiology, D-14476 Potsdam-Golm, Germany
| | - Marcus Frank
- Medical Biology and Electron Microscopy Centre, University Medicine Rostock, D-18057 Rostock, Germany
| | - Markus Wirtz
- Centre for Organismal Studies, University of Heidelberg, D-69120 Heidelberg, Germany
| | - Rüdiger Hell
- Centre for Organismal Studies, University of Heidelberg, D-69120 Heidelberg, Germany
| | - Alisdair R Fernie
- Max Planck Institute of Molecular Plant Physiology, D-14476 Potsdam-Golm, Germany
| | - Hermann Bauwe
- Plant Physiology Department, University of Rostock, D-18051 Rostock, Germany
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Suzuki M, Nakabayashi R, Ogata Y, Sakurai N, Tokimatsu T, Goto S, Suzuki M, Jasinski M, Martinoia E, Otagaki S, Matsumoto S, Saito K, Shiratake K. Multiomics in grape berry skin revealed specific induction of the stilbene synthetic pathway by ultraviolet-C irradiation. Plant Physiol 2015; 168:47-59. [PMID: 25761715 PMCID: PMC4424009 DOI: 10.1104/pp.114.254375] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 03/04/2015] [Indexed: 05/08/2023]
Abstract
Grape (Vitis vinifera) accumulates various polyphenolic compounds, which protect against environmental stresses, including ultraviolet-C (UV-C) light and pathogens. In this study, we looked at the transcriptome and metabolome in grape berry skin after UV-C irradiation, which demonstrated the effectiveness of omics approaches to clarify important traits of grape. We performed transcriptome analysis using a genome-wide microarray, which revealed 238 genes up-regulated more than 5-fold by UV-C light. Enrichment analysis of Gene Ontology terms showed that genes encoding stilbene synthase, a key enzyme for resveratrol synthesis, were enriched in the up-regulated genes. We performed metabolome analysis using liquid chromatography-quadrupole time-of-flight mass spectrometry, and 2,012 metabolite peaks, including unidentified peaks, were detected. Principal component analysis using the peaks showed that only one metabolite peak, identified as resveratrol, was highly induced by UV-C light. We updated the metabolic pathway map of grape in the Kyoto Encyclopedia of Genes and Genomes (KEGG) database and in the KaPPA-View 4 KEGG system, then projected the transcriptome and metabolome data on a metabolic pathway map. The map showed specific induction of the resveratrol synthetic pathway by UV-C light. Our results showed that multiomics is a powerful tool to elucidate the accumulation mechanisms of secondary metabolites, and updated systems, such as KEGG and KaPPA-View 4 KEGG for grape, can support such studies.
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Affiliation(s)
- Mami Suzuki
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Ryo Nakabayashi
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Yoshiyuki Ogata
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Nozomu Sakurai
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Toshiaki Tokimatsu
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Susumu Goto
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Makoto Suzuki
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Michal Jasinski
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Enrico Martinoia
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Shungo Otagaki
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Shogo Matsumoto
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Kazuki Saito
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
| | - Katsuhiro Shiratake
- Graduate School of Bioagricultural Sciences, Nagoya University, Chikusa, Nagoya 464-8601, Japan (Mam.S., S.O., S.M., K.Sh.);National Institute of Vegetables and Tea Science, Taketoyo 470-2351, Japan (Mam.S.);RIKEN Center for Sustainable Resource Science, Tsurumi, Yokohama 230-0045, Japan (R.N., Mak.S., K.Sa.);Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Naka, Sakai 599-8531, Japan (Y.O.);Kazusa DNA Research Institute, Kisarazu 292-0818, Japan (N.S.);Bioinformatics Center, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan (T.T., S.G.);Database Center for Life Science, Research Organization of Information and Systems, Kashiwa 277-0871, Japan (T.T.);Department of Biochemistry and Biotechnology, Poznań University of Life Sciences, Dojazd 60-637 Poznan, Poland (M.J.);Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 61-704 Poznan, Poland (M.J.);Institute of Plant Biology, University of Zurich, Zurich 8008, Switzerland (E.M.); andGraduate School of Pharmaceutical Sciences, Chiba University, Chuo, Chiba 260-8675, Japan (K.Sa.)
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Barnaby JY, Fleisher D, Reddy V, Sicher R. Combined effects of CO2 enrichment, diurnal light levels and water stress on foliar metabolites of potato plants grown in naturally sunlit controlled environment chambers. Physiol Plant 2015; 153:243-52. [PMID: 24888746 DOI: 10.1111/ppl.12238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 05/02/2014] [Accepted: 05/12/2014] [Indexed: 05/04/2023]
Abstract
Experiments were conducted in outdoor, naturally sunlit, soil-plant-atmosphere research (SPAR) chambers using plants grown in pots. Drought treatments were imposed on potato plants (Solanum tuberosum cv. Kennebec) beginning 10 days after tuber initiation. A total of 23 out of 37 foliar metabolites were affected by drought when measured 11 days after initiating water stress treatments. Compounds that accumulated in response to drought were hexoses, polyols, branched chain amino acids (BCAAs) and aromatic amino acids, such as proline. Conversely, leaf starch, alanine, aspartate and several organic acids involved in respiratory metabolism decreased with drought. Depending upon harvest date, a maximum of 12 and 17 foliar metabolites also responded to either CO2 enrichment or diurnal treatments, respectively. In addition, about 20% of the measured metabolites in potato leaflets were simultaneously affected by drought, CO2 enrichment and diurnal factors combined. This group contained BCAAs, hexoses, leaf starch and malate. Polyols and proline accumulated in response to water stress but did not vary diurnally. Water stress also amplified diurnal variations of hexoses and starch in comparison to control samples. Consequently, specific drought responsive metabolites in potato leaflets were dramatically affected by daily changes of photosynthetic carbon metabolism.
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Affiliation(s)
- Jinyoung Y Barnaby
- USDA-ARS, Crop Systems and Global Change Laboratory, Beltsville, MD, 20705, USA
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