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Jeong HJ, Picou C, Jeong K, Chung JK. Oxidation Kinetics of Fluorescent Membrane Lipid Peroxidation Indicators. ACS Chem Biol 2024; 19:1786-1793. [PMID: 39037001 DOI: 10.1021/acschembio.4c00269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
The oxidation of the cellular membrane through lipid peroxidation (LPO) is linked to aging and disease. Despite the physiological importance, the chemical mechanisms underlying LPO and oxidative reactions in membranes in general remain incompletely understood, and challenges exist in translating LPO inhibitor efficacies from in vitro to in vivo. The complexity of LPO, including multiple oxidation reactions in complex membrane environments and the difficulty in quantifying reaction kinetics, underlies these difficulties. In this work, we developed a robust and straightforward method for quantifying the oxidation rate kinetics of fluorescent molecules and determined the oxidation kinetics of widely fluorophores used as indicators of membrane LPO, diphenylhexatriene (DPH), BODIPY-C11, and Liperfluo. The measurement is initiated by lipoxygenase, which provides chemical specificity and enables a straightforward interpretation of oxidation kinetics. Our results reveal that the membrane composition significantly impacts the observed kinetics oxidation in DPH and BODIPY-C11 but not Liperfluo. Reaction mechanisms for their lipid peroxide-induced oxidation are proposed. This work provides a foundation for the quantitative analysis of LPO with fluorescence and extricating the complexity of oxidation reactions within membranes.
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Affiliation(s)
- Hye Jin Jeong
- Department of Chemistry, Colorado State University Fort Collins, Fort Collins, Colorado 80523, United States
| | - Cyrus Picou
- Department of Chemistry, Colorado State University Fort Collins, Fort Collins, Colorado 80523, United States
| | - Keunhong Jeong
- Department of Chemistry, Colorado State University Fort Collins, Fort Collins, Colorado 80523, United States
| | - Jean K Chung
- Department of Chemistry, Colorado State University Fort Collins, Fort Collins, Colorado 80523, United States
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2
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Ding Y, Hou D, Yin Y, Chen K, He J, Yan S, Li H, Xiong Y, Zhou W, Li M. Genetic dissection of Brassica napus seed vigor after aging. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2024; 137:141. [PMID: 38789698 DOI: 10.1007/s00122-024-04648-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/10/2024] [Indexed: 05/26/2024]
Abstract
KEY MESSAGE Stable and novel QTLs that affect seed vigor under different storage durations were discovered, and BnaOLE4, located in the interval of cqSW-C2-3, increased seed vigor after aging. Seed vigor is an important trait in crop breeding; however, the underlying molecular regulatory mechanisms governing this trait in rapeseed remain largely unknown. In the present study, vigor-related traits were analyzed in seeds from a doubled haploid (DH) rapeseed (Brassica napus) population grown in 2 different environments using seeds stored for 7, 5, and 3 years under natural storage conditions. A total of 229 quantitative trait loci (QTLs) were identified and were found to explain 3.78%-17.22% of the phenotypic variance for seed vigor-related traits after aging. We further demonstrated that seed vigor-related traits were positively correlated with oil content (OC) but negatively correlated with unsaturated fatty acids (FAs). Some pleiotropic QTLs that collectively regulate OC, FAs, and seed vigor, such as uq.A8, uq.A3-2, uq.A9-2, and uq.C3-1, were identified. The transcriptomic results from extreme pools of DH lines with distinct seed vigor phenotypes during accelerated aging revealed that various biological pathways and metabolic processes (such as glutathione metabolism and reactive oxygen species) were involved in seed vigor. Through integration of QTL analysis and RNA-Seq, a regulatory network for the control of seed vigor was constructed. Importantly, a candidate (BnaOLE4) from cqSW-C2-3 was selected for functional analysis, and transgenic lines overexpressing BnaOLE4 showed increased seed vigor after artificial aging. Collectively, these results provide novel information on QTL and potential candidate genes for molecular breeding for improved seed storability.
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Affiliation(s)
- Yiran Ding
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China
| | - Dalin Hou
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China
| | - Yongtai Yin
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China
| | - Kang Chen
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China
| | - Jianjie He
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China
| | - Shuxiang Yan
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China
| | - Huaixin Li
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China
| | - Yiyi Xiong
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China
| | - Weixian Zhou
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China
| | - Maoteng Li
- Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China.
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Wuhan, 430074, China.
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3
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Jia X, Xu M, Tan W, Wang Z, Guo Z, Yang X, Liu C. Proteomic and Transcriptomic Analyses Provide New Insights into the Mechanism Underlying Lipid Deterioration in Pecan Kernels during Storage. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:10127-10137. [PMID: 38651754 DOI: 10.1021/acs.jafc.4c00121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Pecan nuts are rich in lipids that tend to deteriorate during storage. Tandem mass-tag-based quantitative proteomics and transcriptomics were used to investigate the changes in the protein and gene profiles of stored pecan kernels for the first time. Our previous lipidomic data were jointly analyzed to elucidate the coordinated changes in lipid molecules and related proteins/genes. The mechanism underlying lipid deterioration in pecan kernels during storage was revealed by multiomics analyses. Lipid metabolism-related pathways were activated during pecan storage. Phospholipases, triacylglycerol lipases, lipoxygenases, and oil body-related proteins/genes were highly expressed during storage, revealing their involvement in lipid deterioration. These data provide rich information and will be valuable for future genetic or chemical research to alleviate lipid deterioration in pecans.
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Affiliation(s)
- Xiaodong Jia
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden, Mem. Sun Yat-Sen), Xuanwu District, Nanjing 210014, Jiangsu, China
| | - Mengyang Xu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden, Mem. Sun Yat-Sen), Xuanwu District, Nanjing 210014, Jiangsu, China
| | - Wenyue Tan
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden, Mem. Sun Yat-Sen), Xuanwu District, Nanjing 210014, Jiangsu, China
- Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Ziyan Wang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden, Mem. Sun Yat-Sen), Xuanwu District, Nanjing 210014, Jiangsu, China
- Nanjing University of Chinese Medicine, Nanjing 210023, Jiangsu, China
| | - Zhongren Guo
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden, Mem. Sun Yat-Sen), Xuanwu District, Nanjing 210014, Jiangsu, China
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi 830011, Xinjiang, China
- Yili Botanical Garden, Xinjiang Institute of Ecology and Geography, Xinyuan 835800, Xinjiang, China
| | - Xufeng Yang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden, Mem. Sun Yat-Sen), Xuanwu District, Nanjing 210014, Jiangsu, China
| | - Chenghang Liu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden, Mem. Sun Yat-Sen), Xuanwu District, Nanjing 210014, Jiangsu, China
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4
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Yan F, Wei T, Yang C, Yang Y, Luo Z, Jiang Y. Combined Analysis of Untargeted Metabolomics and Transcriptomics Revealed Seed Germination and Seedling Establishment in Zelkova schneideriana. Genes (Basel) 2024; 15:488. [PMID: 38674422 PMCID: PMC11050531 DOI: 10.3390/genes15040488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 03/31/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Zelkova schneideriana Hand.-Mazz is a valuable ornamental tree and timber source, whose seedling breeding and large-scale cultivation are restricted by low seed germination and seedling rates. The regulatory mechanisms underlying seed germination and seedling establishment in Z. schneideriana remain unknown. This study conducted metabolomic and transcriptomic analyses of seed germination and seedling establishment in Z. schneideriana. Regular expression of genes and metabolite levels has been observed in plant hormone signal transduction, starch and sucrose metabolism, linoleic acid metabolism, and phenylpropanoid biosynthesis. The reduction in abscisic acid during seed germination may lead to seed release from dormancy. After the seed is released from dormancy, the metabolic levels of auxin, cytokinins, brassinolide, and various sugars are elevated, and they are consumed in large quantities during the seedling establishment stage. Linoleic acid metabolism is gradually activated during seedling establishment. Transcriptome analysis showed that a large number of genes in different metabolic pathways are upregulated during plant establishment, and material metabolism may be accelerated during seedling establishment. Genes regulating carbohydrate metabolism are altered during seed germination and seedling establishment, which may have altered the efficiency of carbohydrate utilization. In addition, the syntheses of lignin monomers and cellulose have different characteristics at different stages. These results provide new insights into the complex mechanisms underlying seed germination and seedling establishment in Z. schneideriana and other woody plants.
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Affiliation(s)
- Fengxia Yan
- Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, Guizhou Academy of Forestry, Guiyang 550005, China; (F.Y.); (Y.Y.); (Y.J.)
| | - Tangmei Wei
- Xingyi Forestry Bureau, Qianxinan Prefecture Guizhou, Guiyang 562400, China;
| | - Chao Yang
- Institute for Forest Resources and Environment, Guizhou University, Guiyang 550025, China;
| | - Yanbing Yang
- Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, Guizhou Academy of Forestry, Guiyang 550005, China; (F.Y.); (Y.Y.); (Y.J.)
| | - Zaiqi Luo
- Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, Guizhou Academy of Forestry, Guiyang 550005, China; (F.Y.); (Y.Y.); (Y.J.)
| | - Yunli Jiang
- Key Laboratory of National Forestry and Grassland Administration on Biodiversity Conservation in Karst Mountainous Areas of Southwestern China, Guizhou Academy of Forestry, Guiyang 550005, China; (F.Y.); (Y.Y.); (Y.J.)
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5
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Hembach L, Niemeyer PW, Schmitt K, Zegers JMS, Scholz P, Brandt D, Dabisch JJ, Valerius O, Braus GH, Schwarzländer M, de Vries J, Rensing SA, Ischebeck T. Proteome plasticity during Physcomitrium patens spore germination - from the desiccated phase to heterotrophic growth and reconstitution of photoautotrophy. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 117:1466-1486. [PMID: 38059656 DOI: 10.1111/tpj.16574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/13/2023] [Accepted: 11/22/2023] [Indexed: 12/08/2023]
Abstract
The establishment of moss spores is considered a milestone in plant evolution. They harbor protein networks underpinning desiccation tolerance and accumulation of storage compounds that can be found already in algae and that are also utilized in seeds and pollen. Furthermore, germinating spores must produce proteins that drive the transition through heterotrophic growth to the autotrophic plant. To get insight into the plasticity of this proteome, we investigated it at five timepoints of moss (Physcomitrium patens) spore germination and in protonemata and gametophores. The comparison to previously published Arabidopsis proteome data of seedling establishment showed that not only the proteomes of spores and seeds are functionally related, but also the proteomes of germinating spores and young seedlings. We observed similarities with regard to desiccation tolerance, lipid droplet proteome composition, control of dormancy, and β-oxidation and the glyoxylate cycle. However, there were also striking differences. For example, spores lacked any obvious storage proteins. Furthermore, we did not detect homologs to the main triacylglycerol lipase in Arabidopsis seeds, SUGAR DEPENDENT1. Instead, we discovered a triacylglycerol lipase of the oil body lipase family and a lipoxygenase as being the overall most abundant proteins in spores. This finding indicates an alternative pathway for triacylglycerol degradation via oxylipin intermediates in the moss. The comparison of spores to Nicotiana tabacum pollen indicated similarities for example in regards to resistance to desiccation and hypoxia, but the overall developmental pattern did not align as in the case of seedling establishment and spore germination.
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Affiliation(s)
- Lea Hembach
- Green Biotechnology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
| | - Philipp W Niemeyer
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, 37077, Göttingen, Germany
| | - Kerstin Schmitt
- Department for Molecular Microbiology and Genetics, Genetics and Göttingen Center for Molecular Biosciences (GZMB) and Service Unit LCMS Protein Analytics, Institute for Microbiology, University of Göttingen, 37077, Göttingen, Germany
| | - Jaccoline M S Zegers
- Department of Applied Bioinformatics, Göttingen Center for Molecular Biosciences (GZMB) and Campus Institute Data Science (CIDAS), Institute for Microbiology and Genetics, University of Göttingen, 37077, Göttingen, Germany
| | - Patricia Scholz
- Laboratoire Reproduction et Développement des Plantes (RDP), UCB Lyon 1, CNRS, INRAE, Université de Lyon, ENS de Lyon, Lyon, France
| | - Dennis Brandt
- Plant Energy Biology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
| | - Janis J Dabisch
- Green Biotechnology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
| | - Oliver Valerius
- Department for Molecular Microbiology and Genetics, Genetics and Göttingen Center for Molecular Biosciences (GZMB) and Service Unit LCMS Protein Analytics, Institute for Microbiology, University of Göttingen, 37077, Göttingen, Germany
| | - Gerhard H Braus
- Department for Molecular Microbiology and Genetics, Genetics and Göttingen Center for Molecular Biosciences (GZMB) and Service Unit LCMS Protein Analytics, Institute for Microbiology, University of Göttingen, 37077, Göttingen, Germany
| | - Markus Schwarzländer
- Plant Energy Biology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
| | - Jan de Vries
- Department of Applied Bioinformatics, Göttingen Center for Molecular Biosciences (GZMB) and Campus Institute Data Science (CIDAS), Institute for Microbiology and Genetics, University of Göttingen, 37077, Göttingen, Germany
| | - Stefan A Rensing
- Plant Cell Biology, Department of Biology, University of Marburg, Marburg, Germany
- BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany
| | - Till Ischebeck
- Green Biotechnology, Institute of Plant Biology and Biotechnology (IBBP), University of Münster, 48143, Münster, Germany
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences and Göttingen Center for Molecular Biosciences (GZMB), University of Göttingen, 37077, Göttingen, Germany
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6
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Li Q, Liu K, Cai G, Yang X, Ngo JCK. Developing Lipase Inhibitor as a Novel Approach to Address the Rice Bran Rancidity Issue─A Critical Review. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:3277-3290. [PMID: 38329044 DOI: 10.1021/acs.jafc.3c07492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Rice bran is a valuable byproduct from the food processing industry, which contains abundant protein, essential unsaturated fatty acids, and numerous bioactive compounds. However, its susceptibility to rancidity greatly restricts its wide utilization. Many strategies have been proposed to delay the rancidity of rice bran, but most of them have their respective limitations. Here, we proposed that developing rice ban lipase peptide inhibitors represents an alternative and promising prescription for impeding the rancidity of rice bran, in contrast to the conventional stabilization approaches for rice bran. For this reason, the rancidity mechanisms of rice bran and the research progress of rice bran lipases were discussed. In addition, the feasibility of utilizing in silico screening and phage display, two state-of-the-art technologies, in the design of the related peptide inhibitors was also highlighted. This knowledge is expected to provide a theoretical basis for opening a new avenue for stabilizing rice bran.
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Affiliation(s)
- Qingyun Li
- College of Food Science and Engineering and School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China
| | - Kunlun Liu
- College of Food Science and Engineering and School of Food and Strategic Reserves, Henan University of Technology, Zhengzhou 450001, China
| | - Gongli Cai
- School of Life Sciences and Hong Kong Branch of National Engineering Research Center of Genetic Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR 999077, China
| | - Xi Yang
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Tokyo 108-8477, Japan
| | - Jacky Chi Ki Ngo
- School of Life Sciences and Hong Kong Branch of National Engineering Research Center of Genetic Medicine, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR 999077, China
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7
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Qin Z, Wang T, Zhao Y, Ma C, Shao Q. Molecular Machinery of Lipid Droplet Degradation and Turnover in Plants. Int J Mol Sci 2023; 24:16039. [PMID: 38003229 PMCID: PMC10671748 DOI: 10.3390/ijms242216039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/23/2023] [Accepted: 10/29/2023] [Indexed: 11/26/2023] Open
Abstract
Lipid droplets (LDs) are important organelles conserved across eukaryotes with a fascinating biogenesis and consumption cycle. Recent intensive research has focused on uncovering the cellular biology of LDs, with emphasis on their degradation. Briefly, two major pathways for LD degradation have been recognized: (1) lipolysis, in which lipid degradation is catalyzed by lipases on the LD surface, and (2) lipophagy, in which LDs are degraded by autophagy. Both of these pathways require the collective actions of several lipolytic and proteolytic enzymes, some of which have been purified and analyzed for their in vitro activities. Furthermore, several genes encoding these proteins have been cloned and characterized. In seed plants, seed germination is initiated by the hydrolysis of stored lipids in LDs to provide energy and carbon equivalents for the germinating seedling. However, little is known about the mechanism regulating the LD mobilization. In this review, we focus on recent progress toward understanding how lipids are degraded and the specific pathways that coordinate LD mobilization in plants, aiming to provide an accurate and detailed outline of the process. This will set the stage for future studies of LD dynamics and help to utilize LDs to their full potential.
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Affiliation(s)
| | | | | | - Changle Ma
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250358, China
| | - Qun Shao
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250358, China
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Chaudhari HA, Mahatma MK, Antala V, Radadiya N, Ukani P, Tomar RS, Thawait LK, Singh S, Gangadhara K, Sakure A, Parihar A. Ethrel-induced release of fresh seed dormancy causes remodelling of amylase activity, proteomics, phytohormone and fatty acid profile of groundnut (Arachis hypogaea L.). PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2023; 29:829-842. [PMID: 37520814 PMCID: PMC10382464 DOI: 10.1007/s12298-023-01332-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 06/20/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023]
Abstract
It is important to have a short period of fresh seed dormancy in some of the groundnut species to counter pre-harvest sprouting (PHS). One of the main causes of PHS is the activation of ethylene-mediated pathways. To determine the effect of ethylene, the study was conducted and alterations in amylase, proteins and fatty acids were observed at the 0, 6, 12, and 24 h stages after ethrel administration. The result showed an increase in amylase activity, and the fatty acids profile showed a unique alteration pattern at different germination stages. Two-dimensional gel electrophoresis (2DGE) revealed differential expression of proteins at each stage. The trypsin digestion following spectral development through UPLC-MS/MS enabled identification of number of differentially expressed proteins. A total of 49 proteins were identified from 2DGE excised spots. The majority were belonged to seed storage-related proteins like Arah1, Arah2, AAI- domain containing protein, conglutin, Arah3/4, arachin, glycinin. Expression of lipoxygenase1, lipoxygenase9 and Arah2 genes were further confirmed by qRT-PCR which showed its involvement at transcript level. Up-regulation of lipoxygenase9 is correlated with decreased content of fatty acids during germination. Phytohormone detection revealed decrease in ABA, SA and JA content which are generally inhibitor of seed germination while GA, IAA and kinetin concentration increased revealing positive regulation of seed germination. We present an integrated view of proteomics, phytohormone profile, carbohydrate and lipid metabolism to unravel mechanism of fresh seed dormancy. Supplementary Information The online version contains supplementary material available at 10.1007/s12298-023-01332-6.
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Affiliation(s)
- Hemangini A. Chaudhari
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
- ICAR-Directorate of Groundnut Research, Junagadh, Gujarat 362001 India
| | - Mahesh Kumar Mahatma
- ICAR-Directorate of Groundnut Research, Junagadh, Gujarat 362001 India
- ICAR-National Research Centre on Seed Spices, Tabiji, Ajmer, 305206 India
| | - Virali Antala
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
| | - Nidhi Radadiya
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
| | - Piyush Ukani
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
| | - Rukam Singh Tomar
- Department of Biotechnology, College of Agriculture, Junagadh Agricultural University, Junagadh, Gujarat 362001 India
| | | | - Sushmita Singh
- ICAR-Directorate of Groundnut Research, Junagadh, Gujarat 362001 India
| | - K. Gangadhara
- ICAR-Directorate of Groundnut Research, Junagadh, Gujarat 362001 India
- ICAR-Central Tobacco Research Institute, Regional Station, Kandukur, Andhra Pradesh 533105 India
| | - Amar Sakure
- Department of Agricultural Biotechnology, Anand Agricultural University, Anand, Gujarat 38811 India
| | - Akrash Parihar
- Department of Agricultural Biotechnology, Anand Agricultural University, Anand, Gujarat 38811 India
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9
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Berg-Falloure KM, Kolomiets MV. Ketols Emerge as Potent Oxylipin Signals Regulating Diverse Physiological Processes in Plants. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112088. [PMID: 37299067 DOI: 10.3390/plants12112088] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/08/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023]
Abstract
Plants produce an array of oxylipins implicated in defense responses against various stresses, with about 600 oxylipins identified in plants to date. Most known oxylipins are the products of lipoxygenase (LOX)-mediated oxygenation of polyunsaturated fatty acids. One of the most well-characterized oxylipins produced by plants is the hormone jasmonic acid (JA); however, the function of the vast majority of oxylipins remains a mystery. One of the lesser-studied groups of oxylipins is comprised of ketols produced by the sequential action of LOX, allene oxide synthase (AOS), followed by non-enzymatic hydrolysis. For decades, ketols were mostly considered mere by-products of JA biosynthesis. Recent accumulating evidence suggests that ketols exhibit hormone-like signaling activities in the regulation of diverse physiological processes, including flowering, germination, plant-symbiont interactions, and defense against biotic and abiotic stresses. To complement multiple reviews on jasmonate and overall oxylipin biology, this review focuses specifically on advancing our understanding of ketol biosynthesis, occurrence, and proposed functions in diverse physiological processes.
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Affiliation(s)
- Katherine M Berg-Falloure
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77843, USA
| | - Michael V Kolomiets
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX 77843, USA
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10
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Nielsen DA, Petrou K. Lipid stores reveal the state of the coral-algae symbiosis at the single-cell level. ISME COMMUNICATIONS 2023; 3:29. [PMID: 37016078 PMCID: PMC10073229 DOI: 10.1038/s43705-023-00234-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/14/2023] [Accepted: 03/22/2023] [Indexed: 04/06/2023]
Abstract
Coral reefs worldwide are threatened by environmental stress. The observable decline in coral cover, is principally due to the intensifying breakdown of the coral symbiosis, a process known as 'bleaching'. Overproduction of reactive oxygen species (ROS) is considered a key driver of coral bleaching, where environmental stress leads to increased ROS expression. To explore the link between ROS damage and symbiont status, we measured lipid peroxidation (LPO), a ubiquitous form of ROS damage, in the lipid stores of individual endo- and ex-symbiotic algal cells of three coral species, using confocal microscopy and a lipid hydroperoxide sensitive fluorescent dye. We found LPO was higher in endosymbionts, while lipid volume was greater in ex-symbiotic cells. Cluster analysis revealed three metabolic profiles differentiating endosymbiotic (#1: high LPO, low lipid) and ex-symbiotic cells (#3: low LPO, high lipid), with the intermediate group (#2) containing both cell types. Heat stress caused endosymbionts of Pocillopora acuta to shift away from cluster #1, suggesting this cluster represents cells in healthy/stable symbiosis. Our study delivers a new means to assess the coral symbiosis, demonstrating that symbiont LPO ratio combined with lipid store volume is a robust metabolic marker for the state of the symbiosis at the cellular level.
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Affiliation(s)
| | - Katherina Petrou
- School of Life Sciences, University of Technology Sydney, Ultimo, NSW, Australia
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11
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Identification and co-expression network analysis of plumule-preferentially expressed genes in Oryza sativa. Genes Genomics 2023; 45:319-336. [PMID: 36708499 DOI: 10.1007/s13258-023-01366-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 01/15/2023] [Indexed: 01/29/2023]
Abstract
BACKGROUND The seedling establishment is controlled by the programmed expression of sets of genes at the specific tissues of seed, abundance and environment. Plumule is an important part of the seed embryo and expresses the suits of genes to exert distinct functions during seed germination. Although rice genomic resources are available and developed rapidly, thousands of transcripts have not previously been located in the plumule of rice. OBJECTIVE This study was performed to identify plumule-preferentially expressed (OsPluP) genes in rice and determine the expression profiles and functions of OsPluP genes. METHODS We identified the OsPluP genes through Affymetrix microarray data. Meanwhile, qRT-PCR was performed to validate the expression pattern, also found that OsPluP genes were regulated by dark/light treatment. The cis-acting regulatory elements were analyzed in the promoters' regions of OsPluP genes. The T-DNA mutant of the OsPluP seed was used to reveal the function in seed germination. RESULTS In this study, a genomic survey of OsPluP genes was performed, and we identified 88 OsPluP genes based on Affymetrix microarray data. The expression profiles of 88 OsPluP members in 24 representative tissues covering rice whole life cycle can be roughly classified into three major groups, suggesting functional divergence of OsPluP genes in seed germination. The microarray data, qRT-PCR, and promoter analysis results demonstrated that transcripts of more than half OsPluPs (54 genes) could be enhanced in the darkness and respond to phytohormone. Gene Ontology (GO)and Kyoto encyclopedia of genes and genomes (KEGG) analysis demonstrated that OsPluP and their co-expressed genes were highly enriched in fatty acid metabolism. Moreover, OsPluP82 T-DNA mutant seeds displayed short plumule length and storage lipid accumulation. CONCLUSION This study would enable the functions of OsPluP genes during seed germination and contribute to the goal of molecular regulatory networks that lay the foundation for further studies of seedling growth.
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12
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Wang F, Xu H, Zhang L, Shi Y, Song Y, Wang X, Cai Q, He W, Xie H, Zhang J. The lipoxygenase OsLOX10 affects seed longevity and resistance to saline-alkaline stress during rice seedlings. PLANT MOLECULAR BIOLOGY 2023; 111:415-428. [PMID: 36867321 PMCID: PMC10089987 DOI: 10.1007/s11103-023-01334-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 01/15/2023] [Indexed: 06/19/2023]
Abstract
Prolonged storage of rice seeds can lead to a decrease in seed vigor and seedling quality. The Lipoxygenase (LOX) gene family is widely distributed in plants, and LOX activity is closely related to seed viability and stress tolerance. In this study, the lipoxygenase OsLOX10 gene from the 9-lipoxygenase metabolic pathway was cloned from rice, and its roles in determining seed longevity and tolerance to saline-alkaline stress caused by Na2CO3 in rice seedlings were mainly investigated. CRISPR/Cas9 knockout of OsLOX10 increased seed longevity compared with the wild-type and OsLOX10 overexpression lines in response to artificial aging. The expression levels of other 9-lipoxygenase metabolic pathway related genes, such as LOX1, LOX2 and LOX3, were increased in the LOX10 overexpression lines. Quantitative real-time PCR and histochemical staining analysis showed that the expression of LOX10 was highest in seed hulls, anthers and the early germinating seeds. KI-I2 staining of starch showed that LOX10 could catalyze the degradation of linoleic acid. Furthermore, we found that the transgenic lines overexpressing LOX10 showed better tolerance to saline-alkaline stress than the wild-type and knockout mutant lines. Overall, our study demonstrated that the knockout LOX10 mutant increased seed longevity, whereas overexpression of LOX10 enhanced tolerance to saline-alkaline stress in rice seedlings.
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Affiliation(s)
- Fuxiang Wang
- College of Agriculture, Fujian Agriculture and Forestry University, 350002, Fuzhou, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China
| | - Huibin Xu
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China
| | - Ling Zhang
- College of Agriculture, Fujian Agriculture and Forestry University, 350002, Fuzhou, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China
| | - Yunrui Shi
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China
| | - Yu Song
- College of Agriculture, Fujian Agriculture and Forestry University, 350002, Fuzhou, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China
| | - Xinyue Wang
- College of Agriculture, Fujian Agriculture and Forestry University, 350002, Fuzhou, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China
| | - Qiuhua Cai
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China
| | - Wei He
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China
| | - Huaan Xie
- College of Agriculture, Fujian Agriculture and Forestry University, 350002, Fuzhou, China
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China
| | - Jianfu Zhang
- College of Agriculture, Fujian Agriculture and Forestry University, 350002, Fuzhou, China.
- Rice Research Institute, Fujian Academy of Agricultural Sciences, 350018, Fuzhou, China.
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops/Key Laboratory of Germplasm Innovation and Molecular Breeding of Hybrid Rice for South China, Incubator of National Key Laboratory of Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Sciences and Technology/Fuzhou Branch, National Rice Improvement Center of China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Ministry of Agriculture and Affairs, 350003, Fuzhou, China.
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13
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Öztürk Kesebir A. Purification and Characterization of Lipoxygenase from Walnuts (Juglans Regia) and Investigation of the Effects of Some Phenolic Compounds on the Activity. ChemistrySelect 2022. [DOI: 10.1002/slct.202203961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Arzu Öztürk Kesebir
- Faculty of Science Department of Chemistry, Atatürk University 25240 Erzurum Turkey
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14
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Zhang J, Ng C, Jiang Y, Wang X, Wang S, Wang S. Genome-wide identification and analysis of LOX genes in soybean cultivar “Zhonghuang 13”. Front Genet 2022; 13:1020554. [PMID: 36276975 PMCID: PMC9585170 DOI: 10.3389/fgene.2022.1020554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Lipoxygenases (LOXs; EC1.13.11.12) are a family of iron- or manganese-containing dioxygenases that catalyze the oxygenation of polyunsaturated fatty acids (PUFAs) and play important roles in plant growth, development, and stress response. In this study, a total of 36 LOX gene family members were identified and annotated in Zhonghuang 13, a soybean cultivar bred by Chinese scientists in 2001. Sanger sequencing of the GmLOX1-coding sequence and colorimetric assays for the GmLOX1 protein showed that Zhonghuang 13 possessed the GmLOX1 gene. These LOX genes are divided into three subfamilies: 9-LOX, type Ⅰ 13-LOX and type II 13-LOX. In the 13-LOX group, the number of GmLOX members was the highest. These GmLOX genes are unevenly distributed on chromosomes 3, 7, 8, 10, 11, 12, 13, 15, 16, 19, and 20. Most of the 13-LOX genes exist in the form of gene clusters, indicating that these genes may originate from tandem duplications. The analysis of duplicated gene pairs showed that GmLOX genes underwent purifying selective pressure during evolution. The gene structures and conserved functional domains of these genes are quite similar. Compared to the orthologous gene pairs of LOX genes between wild soybean (Glycine soja W05) and Zhonghuang 13, the sequences of most gene pairs are relatively conserved. Many cis-elements are present in the promoter region and are involved in stress response, growth and development, hormone response and light response. The tissue-specific gene expression of GmLOX genes was evaluated. Represented by GmLOX1, GmLOX2, and GmLOX3, which were expressed at extremely high levels in seeds, they showed the characteristics of specific expression. This study provides detailed information on soybean lipoxygenase gene family members in Zhonghuang 13, which lays a foundation for further research.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Northeast Agricultural University, Harbin, China
| | - Cheungchuk Ng
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Northeast Agricultural University, Harbin, China
| | - Yan Jiang
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Northeast Agricultural University, Harbin, China
| | - Xianxu Wang
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Northeast Agricultural University, Harbin, China
| | - Shaodong Wang
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Northeast Agricultural University, Harbin, China
- *Correspondence: Shaodong Wang, ; Sui Wang,
| | - Sui Wang
- Key Laboratory of Soybean Biology of Chinese Education Ministry, Northeast Agricultural University, Harbin, China
- State Key Laboratory of Tree Genetics and Breeding, Northeast Forestry University, Harbin, China
- *Correspondence: Shaodong Wang, ; Sui Wang,
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15
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Wang Y, Tuccillo F, Lampi AM, Knaapila A, Pulkkinen M, Kariluoto S, Coda R, Edelmann M, Jouppila K, Sandell M, Piironen V, Katina K. Flavor challenges in extruded plant-based meat alternatives: A review. Compr Rev Food Sci Food Saf 2022; 21:2898-2929. [PMID: 35470959 DOI: 10.1111/1541-4337.12964] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 03/02/2022] [Accepted: 03/24/2022] [Indexed: 12/19/2022]
Abstract
Demand for plant-based meat alternatives has increased in recent years due to concerns about health, ethics, the environment, and animal welfare. Nevertheless, the market share of plant-based meat alternatives must increase significantly if they are to support sustainable food production and consumption. Flavor is an important limiting factor of the acceptability and marketability of plant-based meat alternatives. Undesirable chemosensory perceptions, such as a beany flavor, bitter taste, and astringency, are often associated with plant proteins and products that use them. This study reviewed 276 articles to answer the following five research questions: (1) What are the volatile and nonvolatile compounds responsible for off-flavors? (2) What are the mechanisms by which these flavor compounds are generated? (3) What is the influence of thermal extrusion cooking (the primary structuring technique to transform plant proteins into fibrous products that resemble meat in texture) on the flavor characteristics of plant proteins? (4) What techniques are used in measuring the flavor properties of plant-based proteins and products? (5) What strategies can be used to reduce off-flavors and improve the sensory appeal of plant-based meat alternatives? This article comprehensively discusses, for the first time, the flavor issues of plant-based meat alternatives and the technologies available to improve flavor and, ultimately, acceptability.
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Affiliation(s)
- Yaqin Wang
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Fabio Tuccillo
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Anna-Maija Lampi
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Antti Knaapila
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Marjo Pulkkinen
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Susanna Kariluoto
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Rossana Coda
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland.,Helsinki Institute of Sustainability Science (HELSUS), Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Minnamari Edelmann
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Kirsi Jouppila
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Mari Sandell
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland.,Functional Foods Forum, University of Turku, Turku, Finland
| | - Vieno Piironen
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Kati Katina
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
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16
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Han X, Li J, Zhao Y, Zhang Z, Jiang H, Wang J, Feng X, Zhang Y, Du Z, Wu X, Chen Q, Qi Z. Integrated transcriptomic and proteomic characterization of a chromosome segment substitution line reveals a new regulatory network controlling the seed storage profile of soybean. Food Energy Secur 2022. [DOI: 10.1002/fes3.381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- Xue Han
- College of Agriculture Northeast Agricultural University Harbin China
- Heilongjiang Academy of Land Reclamation Sciences Harbin China
| | - Jiapeng Li
- College of Agriculture Northeast Agricultural University Harbin China
| | - Yabin Zhao
- College of Agriculture Northeast Agricultural University Harbin China
| | - Zhanguo Zhang
- College of Agriculture Northeast Agricultural University Harbin China
| | - Hongwei Jiang
- Soybean Research Institute Jilin Academy of Agricultural Sciences Changchun China
| | - Jinxing Wang
- Suihua Branch Institute, HeiLongJiang Academy of Agricultural Sciences Suihua China
| | - Xuezhen Feng
- College of Agriculture Northeast Agricultural University Harbin China
| | - Yu Zhang
- College of Agriculture Northeast Agricultural University Harbin China
| | - Ziyue Du
- College of Agriculture Northeast Agricultural University Harbin China
| | - Xiaoxia Wu
- College of Agriculture Northeast Agricultural University Harbin China
| | - Qingshan Chen
- College of Agriculture Northeast Agricultural University Harbin China
| | - Zhaoming Qi
- College of Agriculture Northeast Agricultural University Harbin China
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17
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Oliw EH. Fatty acid dioxygenase-cytochrome P450 fusion enzymes of filamentous fungal pathogens. Fungal Genet Biol 2021; 157:103623. [PMID: 34520871 DOI: 10.1016/j.fgb.2021.103623] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 09/07/2021] [Indexed: 11/27/2022]
Abstract
Oxylipins designate oxygenated unsaturated C18 fatty acids. Many filamentous fungi pathogens contain dioxygenases (DOX) in oxylipin biosynthesis with homology to human cyclooxygenases. They contain a DOX domain, which is often fused to a functional cytochrome P450 at the C-terminal end. A Tyr radical in the DOX domain initiates dioxygenation of linoleic acid by hydrogen abstraction with formation of 8-, 9-, or 10-hydroperoxy metabolites. The P450 domains can catalyze heterolytic cleavage of 8- and 10-hydroperoxides with oxidation of the heme thiolate iron for hydroxylation at C-5, C-7, C-9, or C-11 and for epoxidation of the 12Z double bond; thus displaying linoleate diol synthase (LDS) and epoxy alcohol synthase (EAS) activities. LSD activities are present in the rice blast pathogen Magnaporthe oryzae, Botrytis cinerea causing grey mold and the black scurf pathogen Rhizoctonia solani. 10R-DOX-EAS has been found in M. oryzae and Fusarium oxysporum. The P450 domains may also catalyze homolytic cleavage of 8- and 9-hydroperoxy fatty acids and dehydration to produce epoxides with an adjacent double bond, i.e., allene oxides, thus displaying 8- and 9-DOX-allene oxide synthases (AOS). F. oxysporum, F. graminearum, and R. solani express 9S-DOX-AOS and Zymoseptoria tritici 8S-and 9R-DOX-AOS. Homologues are present in endemic human-pathogenic fungi with extensive studies in Aspergillus fumigatus, A. flavus (also a plant pathogen) as well as the genetic model A. nidulans. 8R-and 10R-DOX appear to bind fatty acids "headfirst" in the active site, whereas 9S-DOX binds them "tail first" in analogy with cyclooxygenases. The biological relevance of 8R-DOX-5,8-LDS (also designated PpoA) was first discovered in relation to sporulation of A. nidulans and recently for development and programmed hyphal branching of A. fumigatus. Gene deletion DOX-AOS homologues in F. verticillioides, A. flavus, and A. nidulans alters, inter alia, mycotoxin production, sporulation, and gene expression.
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Affiliation(s)
- Ernst H Oliw
- Division of Biochemical Pharmacology, Department of Pharmaceutical Biosciences, Uppsala University, Box 591, SE-751 24 Uppsala, Sweden.
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18
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Oliw EH. WITHDRAWN: Fatty acid dioxygenase-cytochrome P450 fusion enzymes of the top 10 fungal pathogens in molecular plant pathology and human-pathogenic fungi. Fungal Genet Biol 2021:103603. [PMID: 34214670 DOI: 10.1016/j.fgb.2021.103603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 02/21/2021] [Accepted: 06/11/2021] [Indexed: 11/22/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal
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Affiliation(s)
- Ernst H Oliw
- Division of Biochemical Pharmacology, Department of Pharmaceutical Biosciences, Uppsala University, Box 591, SE-751 24 Uppsala, Sweden.
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19
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Tsutaya T, Mackie M, Sawafuji R, Miyabe-Nishiwaki T, Olsen JV, Cappellini E. Faecal proteomics as a novel method to study mammalian behaviour and physiology. Mol Ecol Resour 2021; 21:1808-1819. [PMID: 33720532 PMCID: PMC8360081 DOI: 10.1111/1755-0998.13380] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/28/2021] [Accepted: 03/10/2021] [Indexed: 11/30/2022]
Abstract
Mammalian faeces can be collected noninvasively during field research and provide valuable information on the ecology and evolution of the source individuals. Undigested food remains, genome/metagenome, steroid hormones, and stable isotopes obtained from faecal samples provide evidence on diet, host/symbiont genetics, and physiological status of the individuals. However, proteins in mammalian faeces have hardly been studied, which hinders the molecular investigations into the behaviour and physiology of the source individuals. Here, we apply mass spectrometry-based proteomics to faecal samples (n = 10), collected from infant, juvenile, and adult captive Japanese macaques (Macaca fuscata), to describe the proteomes of the source individual, of the food it consumed, and its intestinal microbes. The results show that faecal proteomics is a useful method to: (i) investigate dietary changes along with breastfeeding and weaning, (ii) reveal the taxonomic and histological origin of the food items consumed, and (iii) estimate physiological status inside intestinal tracts. These types of insights are difficult or impossible to obtain through other molecular approaches. Most mammalian species are facing extinction risk and there is an urgent need to obtain knowledge on their ecology and evolution for better conservation strategy. The faecal proteomics framework we present here is easily applicable to wild settings and other mammalian species, and provides direct evidence of their behaviour and physiology.
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Affiliation(s)
- Takumi Tsutaya
- Department of Evolutionary Studies of Biosystems, The Graduate University for Advanced Studies, Hayama, Japan.,Biogeochemistry Research Center, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
| | - Meaghan Mackie
- Evolutionary Genomics Section, The Globe Institute, University of Copenhagen, Copenhagen, Denmark.,Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark
| | - Rikai Sawafuji
- Department of Evolutionary Studies of Biosystems, The Graduate University for Advanced Studies, Hayama, Japan
| | | | - Jesper V Olsen
- Proteomics Program, Novo Nordisk Foundation Center for Protein Research, Faculty of Health Science, University of Copenhagen, Copenhagen, Denmark
| | - Enrico Cappellini
- Evolutionary Genomics Section, The Globe Institute, University of Copenhagen, Copenhagen, Denmark
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20
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Wang Z, Li ZF, Wang SS, Xiao YS, Xie XD, Wu MZ, Yu JL, Cheng LR, Yang AG, Yang J. NtMYB12a acts downstream of sucrose to inhibit fatty acid accumulation by targeting lipoxygenase and SFAR genes in tobacco. PLANT, CELL & ENVIRONMENT 2021; 44:775-791. [PMID: 33225450 DOI: 10.1111/pce.13957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/14/2020] [Accepted: 11/16/2020] [Indexed: 06/11/2023]
Abstract
MYB12 promotes flavonol biosynthesis in plants by targeting several early biosynthesis genes (EBGs) of this pathway. The transcriptions of these EBGs are also induced by sucrose signal. However, whether MYB12 is activated by sucrose signal and what the other roles MYB12 has in regulating plant metabolism are poorly understood. In this study, two NtMYB12 genes were cloned from Nicotiana tabacum. Both NtMYB12a and NtMYB12b are involved in regulating flavonoids biosynthesis in tobacco. NtMYB12a is further shown to inhibit the accumulation of fatty acid (FA) in tobacco leaves and seeds. Post-translational activation and chromatin immunoprecipitation assays demonstrate that NtMYB12a directly promotes the transcriptions of NtLOX6, NtLOX5, NtSFAR4 and NtGDSL2, which encode lipoxygenase (LOX) or SFAR enzymes catalyzing the degradation of FA. NtLOX6 and NtLOX5 are shown to prevent the accumulation of FA in the mature seeds and significantly reduced the percentage of polyunsaturated fatty acids (PUFAs) in tobacco. Sucrose stimulates the transcription of NtMYB12a, and loss function of NtMYB12a partially suppresses the decrease of FA content in tobacco seedlings caused by sucrose treatment. The regulation of sucrose on the expression of NtLOX6 and NtGDSL2 genes is mediated by NtMYB12a, whereas those of NtLOX5 and NtSFAR4 genes are independent of sucrose.
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Affiliation(s)
- Zhong Wang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Ze Feng Li
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Shan Shan Wang
- Xiangyang Cigarette Factory, China Tobacco Hubei Industrial Co., Ltd., Xiangyang, China
| | - Yan Song Xiao
- Chenzhou Tobacco Company of Hunan Province, Chenzhou, China
| | - Xiao Dong Xie
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Ming Zhu Wu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Jin Long Yu
- Chenzhou Tobacco Company of Hunan Province, Chenzhou, China
| | - Li Rui Cheng
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Ai Guo Yang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Jun Yang
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
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Yu W, Zhang G, Wang W, Jiang C, Cao L. Identification and comparison of proteomic and peptide profiles of mung bean seeds and sprouts. BMC Chem 2020; 14:46. [PMID: 32760914 PMCID: PMC7391586 DOI: 10.1186/s13065-020-00700-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/21/2020] [Indexed: 11/10/2022] Open
Abstract
The objectives of this study were to analyze and compare the proteomic and peptide profiles of mung bean (Vigna radiata) seeds and sprouts. Label-free proteomics and peptidomics technologies allowed the identification and relative quantification of proteins and peptides. There were 1918 and 1955 proteins identified in mung bean seeds and sprouts, respectively. The most common biological process of proteins in these two samples was the metabolic process, followed by cellular process and single-organism process. Their dominant molecular functions were catalytic activity, binding, and structural molecule activity, and the majority of them were the cell, cell part, and organelle proteins. These proteins were primarily involved in metabolic pathways, biosynthesis of secondary metabolites, and ribosome. PCA and HCA results indicated the proteomic profile varied significantly during mung bean germination. A total of 260 differential proteins between mung bean seeds and sprouts were selected based on their relative abundance, which were associated with the specific metabolism during seed germination. There were 2364 peptides identified and 76 potential bioactive peptides screened based on the in silico analysis. Both the types and concentration of the peptides in mung bean sprouts were higher than those in seeds, and the content of bioactive peptides in mung bean sprouts was deduced to be higher.
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Affiliation(s)
- Wei Yu
- Heilongjiang Bayi Agricultural University National Coarse Cereals Engineering Research Center, Daqing, 163319 Heilongjiang China
| | - Guifang Zhang
- Heilongjiang Bayi Agricultural University National Coarse Cereals Engineering Research Center, Daqing, 163319 Heilongjiang China
| | - Weihao Wang
- Heilongjiang Bayi Agricultural University National Coarse Cereals Engineering Research Center, Daqing, 163319 Heilongjiang China
| | - Caixia Jiang
- Heilongjiang Bayi Agricultural University National Coarse Cereals Engineering Research Center, Daqing, 163319 Heilongjiang China
| | - Longkui Cao
- Heilongjiang Bayi Agricultural University National Coarse Cereals Engineering Research Center, Daqing, 163319 Heilongjiang China
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22
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Gogna M, Bhatla SC. Salt-tolerant and -sensitive seedlings exhibit noteworthy differences in lipolytic events in response to salt stress. PLANT SIGNALING & BEHAVIOR 2020; 15:1737451. [PMID: 32141358 PMCID: PMC7194373 DOI: 10.1080/15592324.2020.1737451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Present findings hypothesize that salt-tolerant and -sensitive oilseed plants are expected to exhibit deviant patterns of growth through lipolytic events in seedling cotyledons. It reports the growth response and different lipolytic mechanisms operating during oil body (OB) mobilization in the seedling cotyledons of salt-tolerant (DRSH 1) and salt-sensitive (PSH 1962) varieties of sunflower (Helianthus annuus L.). Salt tolerance or sensitivity to 120 mM NaCl correlates with high proteolytic degradation of OB membrane proteins, particularly oleosins, whereas salt-sensitive seedling cotyledons exhibit negligible proteolytic activity, thereby retaining OB membrane integrity for a longer time. High lipoxygenase (LOX) activity and its further upregulation by salt stress are the unique features of salt-sensitive sunflower seedlings. Salt-tolerant seedling cotyledons exhibit noteworthy modulation of phospholipase-D (PLD) activity by salt stress. Salt-sensitive seedling cotyledons exhibit higher lipase activity than salt-sensitive ones and enzyme activity is downregulated by salt stress. Salt-sensitive variety exhibits higher lipid accumulation and faster lipid mobilization with seedling development than salt-tolerant variety. Accumulation of oleic and linoleic acid in the seedling cotyledons of salt-tolerant and sensitive varieties exhibits differential sensitivity to salt stress. Novel detection of hexanoic acid (6:0) is a noteworthy feature as a response to salt stress in salt-sensitive variety. These findings, thus, provide new information on long-distance salt stress sensing mechanisms at seedling stage of plant development.
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Affiliation(s)
- Mansi Gogna
- Laboratory of Plant Physiology, Department of Botany, University of Delhi, Delhi, India
| | - Satish C. Bhatla
- Laboratory of Plant Physiology, Department of Botany, University of Delhi, Delhi, India
- CONTACT Satish C. Bhatla Laboratory of Plant Physiology, Department of Botany, University of Delhi, Delhi 110007, India
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23
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Lehtonen M, Kekäläinen S, Nikkilä I, Kilpeläinen P, Tenkanen M, Mikkonen KS. Active food packaging through controlled in situ production and release of hexanal. Food Chem X 2020; 5:100074. [PMID: 31891156 PMCID: PMC6928337 DOI: 10.1016/j.fochx.2019.100074] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 11/06/2019] [Accepted: 12/11/2019] [Indexed: 11/29/2022] Open
Abstract
Transportation and storage of vegetables and fruits, including berries, is increasing to meet growing consumer demand for fresh foods. Ripening and softening of plant tissues may be slowed down by hexanal, a safe volatile compound that also has antimicrobial properties. Thus hexanal could be applied during the food distribution chain to slow down the spoilage of plant-based products and reduce food waste. Nonetheless, due to the rapid evaporation of hexanal, a constant supply is needed. Our aim was to develop a concept to incorporate food-grade sunflower oil in a polysaccharide aerogel matrix for controlled in situ production and release of hexanal. We compared enzyme- and light-catalyzed lipid oxidation reactions, determined the release of hexanal at different conditions, and performed storage stability tests of blueberries and cherry tomatoes. The lipid-loaded aerogels assessed here are a potential novel delivery matrix for controlled hexanal formation to extend the shelf life of plant-based products.
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Affiliation(s)
- Mari Lehtonen
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66, Helsinki 00014, Finland
| | - Sonja Kekäläinen
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66, Helsinki 00014, Finland
| | - Ida Nikkilä
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66, Helsinki 00014, Finland
| | - Petri Kilpeläinen
- Natural Resources Institute of Finland (Luke), P.O. Box 2, Helsinki 00791, Finland
| | - Maija Tenkanen
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66, Helsinki 00014, Finland
- Helsinki Institute of Sustainability Science (HELSUS), P.O. Box 65, University of Helsinki, Finland
| | - Kirsi S. Mikkonen
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66, Helsinki 00014, Finland
- Helsinki Institute of Sustainability Science (HELSUS), P.O. Box 65, University of Helsinki, Finland
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24
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Nieva-Echevarría B, Goicoechea E, Guillén MD. Oxidative stability of extra-virgin olive oil enriched or not with lycopene. Importance of the initial quality of the oil for its performance during in vitro gastrointestinal digestion. Food Res Int 2020; 130:108987. [PMID: 32156407 DOI: 10.1016/j.foodres.2020.108987] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/30/2019] [Accepted: 01/06/2020] [Indexed: 11/28/2022]
Abstract
The performance of commercial non-enriched and lycopene-enriched extra-virgin olive oils (EVOO) during in vitro gastrointestinal digestion was studied in order to elucidate potential benefits of lycopene addition. Samples were analyzed before and after digestion by Proton Nuclear Magnetic Resonance (1H NMR) and Solid Phase Microextraction-Gas Chromatography/Mass Spectrometry (SPME-GC/MS). EVOO samples differed in both main (oleic and linoleic acyl groups) and minor components (phenolic and oxidation compounds). Regardless of the presence of lycopene, all the samples reached a high degree of lipolysis and showed high stability towards oxidation under digestion conditions. Rather than oxidation reactions, the hydroperoxides initially present in the oil were reduced to more stable hydroxides. Likewise, hydroxy-diene isomerization from cis,trans to trans,trans occurred. Hence, the presumed antioxidant effect of lycopene was not noticed during in vitro digestion of EVOO. Similar experiments carried out with a more polyunsaturated oil (sunflower oil) indicated that lycopene slowed down the advance of oxidation slightly. However, in the case of EVOO, its initial quality prevailed over the slight antioxidant effect exerted by lycopene at the concentration present in commercial samples, determining the oxidation compound profile of the digests.
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Affiliation(s)
- Bárbara Nieva-Echevarría
- Food Technology, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad n° 7, 01006 Vitoria-Gasteiz, Spain
| | - Encarnación Goicoechea
- Food Technology, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad n° 7, 01006 Vitoria-Gasteiz, Spain
| | - María D Guillén
- Food Technology, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad n° 7, 01006 Vitoria-Gasteiz, Spain.
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25
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Holková I, Rauová D, Mergová M, Bezáková L, Mikuš P. Purification and Product Characterization of Lipoxygenase from Opium Poppy Cultures ( Papaver somniferum L.). Molecules 2019; 24:molecules24234268. [PMID: 31771143 PMCID: PMC6930461 DOI: 10.3390/molecules24234268] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 01/31/2023] Open
Abstract
Opium poppy (Papaver somniferum L.) is an ancient medicinal plant producing pharmaceutically important benzylisoquinoline alkaloids. In the present work we focused on the study of enzyme lipoxygenase (LOX, EC 1.13.11.12) from opium poppy cultures. LOX is involved in lipid peroxidation and lipoxygenase oxidation products of polyunsaturated fatty acids have a significant role in regulation of growth, development and plant defense responses to biotic or abiotic stress. The purpose of this study was to isolate and characterize LOX enzyme from opium poppy callus cultures. LOX was purified by ammonium sulfate precipitation and then followed by hydrophobic chromatography using Phenyl-Sepharose CL-4B and hydroxyapatite chromatography using HA Ultrogel sorbent. Sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis and immunoblotting revealed that LOX from opium poppy cultures was a single monomeric protein showing the relative molecular weight of 83 kDa. To investigate the positional specificity of the LOX reaction, purified LOX was incubated with linoleic acid and the products were analyzed by high-performance liquid chromatography in two steps, firstly with reverse phase (120-5 Nucleosil C18 column) and secondly with normal phase (Zorbax Rx-SIL column). LOX converted linoleic acid primarily to 13-hydroperoxy-(9Z,11E)-octadecadienoic acids (78%) and to a lesser extent 9-hydroperoxy-(10E,12Z)-octadecadienoic acids (22%). Characterization of LOX from opium poppy cultures provided valuable information in understanding LOX involvement in regulation of signaling pathways leading to biosynthesis of secondary metabolites with significant biological activity.
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Affiliation(s)
- Ivana Holková
- Department of Cell and Molecular Biology of Drugs, Faculty of Pharmacy, Comenius University in Bratislava, Kalinčiakova 8, 832 32 Bratislava, Slovakia; (M.M.); (L.B.)
- Correspondence: ; Tel.: +421-250-117-313
| | - Drahomíra Rauová
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia; (D.R.); (P.M.)
- Toxicological and Antidoping Center, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia
| | - Michaela Mergová
- Department of Cell and Molecular Biology of Drugs, Faculty of Pharmacy, Comenius University in Bratislava, Kalinčiakova 8, 832 32 Bratislava, Slovakia; (M.M.); (L.B.)
| | - Lýdia Bezáková
- Department of Cell and Molecular Biology of Drugs, Faculty of Pharmacy, Comenius University in Bratislava, Kalinčiakova 8, 832 32 Bratislava, Slovakia; (M.M.); (L.B.)
| | - Peter Mikuš
- Department of Pharmaceutical Analysis and Nuclear Pharmacy, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia; (D.R.); (P.M.)
- Toxicological and Antidoping Center, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia
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da Trindade R, Almeida L, Xavier L, Lins AL, Andrade EH, Maia JG, Mello A, Setzer WN, Ramos A, da Silva JK. Arbuscular Mycorrhizal Fungi Colonization Promotes Changes in the Volatile Compounds and Enzymatic Activity of Lipoxygenase and Phenylalanine Ammonia Lyase in Piper nigrum L. 'Bragantina'. PLANTS (BASEL, SWITZERLAND) 2019; 8:E442. [PMID: 31652848 PMCID: PMC6918320 DOI: 10.3390/plants8110442] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/05/2019] [Accepted: 09/09/2019] [Indexed: 11/16/2022]
Abstract
Arbuscular mycorrhizal fungi (AMF) have been used to promote numerous benefits to plants. In this study, we evaluated the symbiosis between AMF species (Rhizophagus clarus, Claroideoglomus etunicatum) and Piper nigrum L. 'Bragantina'. Volatile compounds, lipoxygenase (LOX) and phenylalanine ammonia-lyase (PAL) activities, and total phenolic content were monitored from 1 to 60 days post-inoculation (dpi). Hyphae, arbuscles, and vesicles were observed during the root colonization. In the leaves, AMF induced an increase of sesquiterpene hydrocarbons (54.0%-79.0%) and a decrease of oxygenated sesquiterpenes (41.3%-14.5%) at 7 dpi and 60 dpi (41.8%-21.5%), respectively. Cubenol, the main volatile compound of leaves, showed a significant decrease at 7 dpi (21.5%-0.28%) and 45 dpi (20.4%-18.42%). β-caryophyllene, the major volatile compound of the roots, displayed a significant reduction at 45 dpi (30.0%-20.0%). LOX increased in the roots at 21, 30, and 60 dpi. PAL was higher in leaves during all periods, except at 60 dpi, and increased at 21 and 45 dpi in the roots. The total phenolic content showed a significant increase only in the roots at 30 dpi. The results suggested that AMF provided changes in the secondary metabolism of P. nigrum, inducing its resistance.
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Affiliation(s)
- Rafaela da Trindade
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, Belém, PA 66075-110, Brazil.
| | - Laís Almeida
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, Belém, PA 66075-110, Brazil.
| | - Luciana Xavier
- Laboratório de Biotecnologia de Enzimas e Biotransformações, Universidade Federal do Pará, Belém, PA 66075-110, Brazil.
| | - Alba Lúcia Lins
- Coordenação de Botânica, Museu Paraense Emílio Goeldi, Belém, PA 66077-830, Brazil.
| | | | - José Guilherme Maia
- Departamento de Química, Universidade Federal do Maranhão, São Luís, MA 65080-805, Brazil.
| | - Andréa Mello
- Instituto de Estudos de Desenvolvimento Agrário Regional, Universidade Federal do Sul e Sudeste do Pará, Marabá, PA 68507-590, Brazil.
| | - William N Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA.
| | - Alessandra Ramos
- Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, Marabá, PA 68507-590, Brazil.
| | - Joyce Kelly da Silva
- Programa de Pós-Graduação em Biotecnologia, Universidade Federal do Pará, Belém, PA 66075-110, Brazil.
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27
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Souza GK, Diório A, Johann G, Gomes MCS, Pomini AM, Arroyo PA, Pereira NC. Assessment of the Physicochemical Properties and Oxidative Stability of Kernel Fruit Oil from the Acrocomia totai
Palm Tree. J AM OIL CHEM SOC 2018. [DOI: 10.1002/aocs.12175] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gredson Keiff Souza
- Chemical Engineering Department; State University of Maringá; Colombo St, 5790., Maringá PR 87020-900 Brazil
- Department of Chemistry; State University of Maringá; Colombo St, 5790., Maringá PR 87020-900 Brazil
| | - Alexandre Diório
- Chemical Engineering Department; State University of Maringá; Colombo St, 5790., Maringá PR 87020-900 Brazil
| | - Gracielle Johann
- Federal Technological University of Paraná; Estrada para Boa Esperança; Km 04, Dois Vizinhos PR 85660-000 Brazil
| | - Maria Carolina Sérgi Gomes
- Engineering Departament; Federal Technological University of Paraná; Marcílio Dias St, 635., Apucarana PR 86812-460 Brazil
| | - Armando Mateus Pomini
- Department of Chemistry; State University of Maringá; Colombo St, 5790., Maringá PR 87020-900 Brazil
| | - Pedro Augusto Arroyo
- Chemical Engineering Department; State University of Maringá; Colombo St, 5790., Maringá PR 87020-900 Brazil
| | - Nehemias Curvelo Pereira
- Chemical Engineering Department; State University of Maringá; Colombo St, 5790., Maringá PR 87020-900 Brazil
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28
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Gehring T, Heydeck D, Niewienda A, Janek K, Kuhn H. Do lipoxygenases occur in viruses?: Expression and characterization of a viral lipoxygenase-like protein did not provide evidence for the existence of functional viral lipoxygenases. Prostaglandins Leukot Essent Fatty Acids 2018; 138:14-23. [PMID: 30392576 DOI: 10.1016/j.plefa.2018.10.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 07/24/2018] [Accepted: 10/03/2018] [Indexed: 01/13/2023]
Abstract
Lipoxygenases are lipid peroxidizing enzymes, which frequently occur in higher plants and animals. In bacteria, these enzymes are rare and have been introduced via horizontal gene transfer. Since viruses function as horizontal gene transfer vectors and since lipoxygenases may be helpful for releasing assembled virus particles from host cells we explored whether these enzymes may actually occur in viruses. For this purpose we developed a four-step in silico screening strategy and searching the publically available viral genomes for lipoxygenase-like sequences we detected a single functional gene in the genome of a mimivirus infecting Acantamoeba polyphaga. The primary structure of this protein involved two putative metal ligand clusters but the recombinant enzyme did neither contain iron nor manganese. Most importantly, it did not exhibit lipoxygenase activity. These data suggests that this viral lipoxygenase-like sequence does not encode a functional lipoxygenase and that these enzymes do not occur in viruses.
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Affiliation(s)
- Tatjana Gehring
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Biochemistry, Chariteplatz 1, D-10117 Berlin, Germany
| | - Dagmar Heydeck
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Biochemistry, Chariteplatz 1, D-10117 Berlin, Germany
| | - Agathe Niewienda
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Core facility for Mass Spectrometry, Chariteplatz 1, D-10117 Berlin, Germany
| | - Katharina Janek
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Core facility for Mass Spectrometry, Chariteplatz 1, D-10117 Berlin, Germany
| | - Hartmut Kuhn
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Biochemistry, Chariteplatz 1, D-10117 Berlin, Germany.
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29
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Song Y, He L, Wang XD, Smith N, Wheeler S, Garg ML, Rose RJ. Regulation of Carbon Partitioning in the Seed of the Model Legume Medicago truncatula and Medicago orbicularis: A Comparative Approach. FRONTIERS IN PLANT SCIENCE 2017; 8:2070. [PMID: 29312368 PMCID: PMC5733034 DOI: 10.3389/fpls.2017.02070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 11/20/2017] [Indexed: 05/20/2023]
Abstract
The proportion of starch, protein and oil in legume seeds is species dependent. The model legume, Medicago truncatula, has predominantly oil and protein stores. To investigate the regulation of seed oil production we compared M. truncatula with M. orbicularis, which has less oil and protein. The types of protein and fatty acids are similar between the two species. Electron microscopy indicated that the size and distribution of the oil bodies in M. orbicularis, is consistent with reduced oil production. M. orbicularis has more extruded endosperm mucilage compared to M. truncatula. The cotyledons have a greater cell wall content, visualized as thicker cell walls. The reduced oil content in M. orbicularis is associated with increased expression of the MtGLABRA2-like (MtGL2) transcription factor, linked to an inverse relationship between mucilage and oil content in Arabidopsis. The expression of the pectin biosynthesis GALACTURONOSYLTRANSFERASE (GAUT) genes, is also increased in M. orbicularis. These increases in extruded mucilage and cell wall storage components in M. orbicularis are accompanied by reduced expression of transcriptional regulators of oil biosynthesis, MtLEAFY COTYLEDON1-LIKE (MtL1L), MtABSCISIC ACID-INSENSITIVE3 (MtABI3), and MtWRINKLED-like (MtWRI), in M. orbicularis. The reduced oil in M. orbicularis, is consistent with increased synthesis of cell wall polysaccharides and decreased expression of master transcription factors regulating oil biosynthesis and embryo maturation. Comparative investigations between these two Medicago species is a useful system to investigate the regulation of oil content and carbon partitioning in legumes.
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Affiliation(s)
- Youhong Song
- School of Agronomy, Anhui Agricultural University, Hefei, China
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia
| | - Liang He
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | - Xin-Ding Wang
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia
| | - Nathan Smith
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia
| | - Simon Wheeler
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia
| | - Manohar L. Garg
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Ray J. Rose
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW, Australia
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30
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Zaaboul F, Matabaro E, Raza H, Xin BD, Duhoranimana E, Cao C, Liu Y. Validation of a Simple Extraction Method for Oil Bodies Isolated from Peanuts. EUR J LIPID SCI TECH 2017. [DOI: 10.1002/ejlt.201700363] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Farah Zaaboul
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University1800 Lihu AvenueWuxiJiangsu 214122P.R. China
| | - Emmanuel Matabaro
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, School of Biotechnology, Jiangnan University1800 Lihu AvenueWuxiJiangsu 214122P.R. China
| | - Husnain Raza
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University1800 Lihu AvenueWuxiJiangsu 214122P.R. China
| | - Boxin D. Xin
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University1800 Lihu AvenueWuxiJiangsu 214122P.R. China
| | - Emmanuel Duhoranimana
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University1800 Lihu AvenueWuxiJiangsu 214122P.R. China
| | - Chen Cao
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University1800 Lihu AvenueWuxiJiangsu 214122P.R. China
| | - Yuanfa Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University1800 Lihu AvenueWuxiJiangsu 214122P.R. China
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31
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Song Y, Wang XD, Rose RJ. Oil body biogenesis and biotechnology in legume seeds. PLANT CELL REPORTS 2017; 36:1519-1532. [PMID: 28866824 PMCID: PMC5602053 DOI: 10.1007/s00299-017-2201-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 08/23/2017] [Indexed: 05/08/2023]
Abstract
The seeds of many legume species including soybean, Pongamia pinnata and the model legume Medicago truncatula store considerable oil, apart from protein, in their cotyledons. However, as a group, legume storage strategies are quite variable and provide opportunities for better understanding of carbon partitioning into different storage products. Legumes with their ability to fix nitrogen can also increase the sustainability of agricultural systems. This review integrates the cell biology, biochemistry and molecular biology of oil body biogenesis before considering biotechnology strategies to enhance oil body biosynthesis. Cellular aspects of packaging triacylglycerol (TAG) into oil bodies are emphasized. Enhancing seed oil content has successfully focused on the up-regulation of the TAG biosynthesis pathways using overexpression of enzymes such as diacylglycerol acyltransferase1 and transcription factors such as WRINKLE1 and LEAFY COTYLEDON1. While these strategies are central, decreasing carbon flow into other storage products and maximizing the packaging of oil bodies into the cytoplasm are other strategies that need further examination. Overall there is much potential for integrating carbon partitioning, up-regulation of fatty acid and TAG synthesis and oil body packaging, for enhancing oil levels. In addition to the potential for integrated strategies to improving oil yields, the capacity to modify fatty acid composition and use of oil bodies as platforms for the production of recombinant proteins in seed of transgenic legumes provide other opportunities for legume biotechnology.
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Affiliation(s)
- Youhong Song
- School of Agronomy, Anhui Agricultural University, Hefei, 230036, People's Republic of China
| | - Xin-Ding Wang
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Ray J Rose
- School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW, 2308, Australia.
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Rodríguez-López CE, Hernández-Brenes C, Treviño V, Díaz de la Garza RI. Avocado fruit maturation and ripening: dynamics of aliphatic acetogenins and lipidomic profiles from mesocarp, idioblasts and seed. BMC PLANT BIOLOGY 2017; 17:159. [PMID: 28969589 PMCID: PMC5623960 DOI: 10.1186/s12870-017-1103-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 09/08/2017] [Indexed: 05/06/2023]
Abstract
BACKGROUND Avocado fruit contains aliphatic acetogenins (oft-acetylated, odd-chain fatty alcohols) with promising bioactivities for both medical and food industries. However, we have scarce knowledge about their metabolism. The present work aimed to study changes in acetogenin profiles from mesocarp, lipid-containing idioblasts, and seeds from 'Hass' cultivar during fruit development, germination, and three harvesting years. An untargeted LC-MS based lipidomic analysis was also conducted to profile the lipidome of avocado fruit in each tissue. RESULTS The targeted analysis showed that acetogenin profiles and contents remained unchanged in avocado mesocarp during maturation and postharvest ripening, germination, and different harvesting years. However, a shift in the acetogenin profile distribution, accompanied with a sharp increase in concentration, was observed in seed during early maturation. Untargeted lipidomics showed that this shift was accompanied with remodeling of glycerolipids: TAGs and DAGs decreased during fruit growing in seed. Remarkably, the majority of the lipidome in mature seed was composed by acetogenins; we suggest that this tissue is able to synthesize them independently from mesocarp. On the other hand, lipid-containing idioblasts accumulated almost the entire acetogenin pool measured in the whole mesocarp, while only having 4% of the total fatty acids. The lipidome of this cell type changed the most when the fruit was ripening after harvesting, TAGs decreased while odd-chain DAGs increased. Notably, idioblast lipidome was more diverse than that from mesocarp. CONCLUSIONS Evidence shown here suggests that idioblasts are the main site of acetogenin biosynthesis in avocado mesocarp. This work unveiled the prevalence of aliphatic acetogenins in the avocado fruit lipidome and evidenced TAGs as initial donors of the acetogenin backbones in its biosynthesis. It also sets evidence for acetogenins being included in future works aimed at characterizing the avocado seed, as they are a main component of their lipidome.
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Affiliation(s)
| | - Carmen Hernández-Brenes
- Escuela de Ingeniería y Ciencias, Campus Monterrey, Tecnologico de Monterrey, Monterrey, Nuevo Leon, Mexico
| | - Víctor Treviño
- Cátedra de Bioinformática, Escuela de Medicina, Tecnologico de Monterrey, Monterrey, Nuevo Leon, Mexico
| | - Rocío I Díaz de la Garza
- Escuela de Ingeniería y Ciencias, Campus Monterrey, Tecnologico de Monterrey, Monterrey, Nuevo Leon, Mexico.
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Duan W, Sun P, Chen L, Gao S, Shao W, Li J. Comparative analysis of fruit volatiles and related gene expression between the wild strawberry Fragaria pentaphylla and cultivated Fragaria × ananassa. Eur Food Res Technol 2017. [DOI: 10.1007/s00217-017-2935-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Oenel A, Fekete A, Krischke M, Faul SC, Gresser G, Havaux M, Mueller MJ, Berger S. Enzymatic and Non-Enzymatic Mechanisms Contribute to Lipid Oxidation During Seed Aging. PLANT & CELL PHYSIOLOGY 2017; 58:925-933. [PMID: 28371855 DOI: 10.1093/pcp/pcx036] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 03/05/2017] [Indexed: 05/26/2023]
Abstract
Storage of seeds is accompanied by loss of germination and oxidation of storage and membrane lipids. A lipidomic analysis revealed that during natural and artificial aging of Arabidopsis seeds, levels of several diacylglycerols and free fatty acids, such as linoleic acid and linolenic acid as well as free oxidized fatty acids and oxygenated triacylglycerols, increased. Lipids can be oxidized by enzymatic or non-enzymatic processes. In the enzymatic pathway, lipoxygenases (LOXs) catalyze the first oxygenation step of polyunsaturated fatty acids. Analysis of lipid levels in mutants with defects in the two 9-LOX genes revealed that the strong increase in free 9-hydroxy- and 9-keto-fatty acids is dependent on LOX1 but not LOX5. Fatty acid oxidation correlated with an aging-induced decrease of germination, raising the question of whether these oxylipins negatively regulate germination. However, seeds of the lox1 mutant were only slightly more tolerant to aging, indicating that 9-LOX products contribute to but are not the major cause of loss of germination during aging. In contrast to free oxidized fatty acids, accumulation of oxygenated triacylglycerols upon accelerated aging was mainly based on non-enzymatic oxidation of seed storage lipids.
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Affiliation(s)
- Ayla Oenel
- Julius-von-Sachs-Institute, Pharmaceutical Biology, University of Wuerzburg, Julius-von-Sachs-Platz, Wuerzburg, Germany
| | - Agnes Fekete
- Julius-von-Sachs-Institute, Pharmaceutical Biology, University of Wuerzburg, Julius-von-Sachs-Platz, Wuerzburg, Germany
| | - Markus Krischke
- Julius-von-Sachs-Institute, Pharmaceutical Biology, University of Wuerzburg, Julius-von-Sachs-Platz, Wuerzburg, Germany
| | - Sophie C Faul
- Julius-von-Sachs-Institute, Pharmaceutical Biology, University of Wuerzburg, Julius-von-Sachs-Platz, Wuerzburg, Germany
| | - Gabriele Gresser
- Julius-von-Sachs-Institute, Pharmaceutical Biology, University of Wuerzburg, Julius-von-Sachs-Platz, Wuerzburg, Germany
| | - Michel Havaux
- CEA, CNRS UMR7265, Aix-Marseille Université, Laboratoire d'Ecophysiologie Moléculaire des Plantes, Saint-Paul-lez-Durance, France
| | - Martin J Mueller
- Julius-von-Sachs-Institute, Pharmaceutical Biology, University of Wuerzburg, Julius-von-Sachs-Platz, Wuerzburg, Germany
| | - Susanne Berger
- Julius-von-Sachs-Institute, Pharmaceutical Biology, University of Wuerzburg, Julius-von-Sachs-Platz, Wuerzburg, Germany
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Naziri E, Koupantsis T, Mantzouridou FT, Paraskevopoulou A, Tsimidou MZ, Kiosseoglou V. Influence of thermal treatment on the stability of vegetable “milk” obtained by ultrafiltration of aqueous oil body extracts from various sources. EUR J LIPID SCI TECH 2017. [DOI: 10.1002/ejlt.201600362] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Eleni Naziri
- Laboratory of Food Chemistry and Technology; School of Chemistry; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Thomas Koupantsis
- Laboratory of Food Chemistry and Technology; School of Chemistry; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Fani Th. Mantzouridou
- Laboratory of Food Chemistry and Technology; School of Chemistry; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Adamantini Paraskevopoulou
- Laboratory of Food Chemistry and Technology; School of Chemistry; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Maria Z. Tsimidou
- Laboratory of Food Chemistry and Technology; School of Chemistry; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - Vassilios Kiosseoglou
- Laboratory of Food Chemistry and Technology; School of Chemistry; Aristotle University of Thessaloniki; Thessaloniki Greece
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Hanano A, Almousally I, Shaban M, Rahman F, Hassan M, Murphy DJ. Specific Caleosin/Peroxygenase and Lipoxygenase Activities Are Tissue-Differentially Expressed in Date Palm ( Phoenix dactylifera L.) Seedlings and Are Further Induced Following Exposure to the Toxin 2,3,7,8-tetrachlorodibenzo-p-dioxin. FRONTIERS IN PLANT SCIENCE 2017; 7:2025. [PMID: 28111588 PMCID: PMC5216026 DOI: 10.3389/fpls.2016.02025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 12/19/2016] [Indexed: 06/02/2023]
Abstract
Two caleosin/peroxygenase isoforms from date palm, Phoenix dactylifera L., PdCLO2 and PdCLO4, were characterized with respect to their tissue expression, subcellular localization, and oxylipin pathway substrate specificities in developing seedlings. Both PdCLO2 and PdCLO4 had peroxygenase activities that peaked at the mid-stage (radicle length of 2.5 cm) of seedling growth and were associated with the lipid droplet (LD) and microsomal fractions. Recombinant PdCLO2 and PdCLO4 proteins heterologously expressed in yeast cells were localized in both LD and microsomal fractions. Each of the purified recombinant proteins exhibited peroxygenase activity but they were catalytically distinct with respect to their specificity and product formation from fatty acid epoxide and hydroxide substrates. We recently showed that date palm CLO genes were upregulated following exposure to the potent toxin, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) (Hanano et al., 2016), and we show here that transcripts of 9- and 13-lipoxygenase (LOX) genes were also induced by TCDD exposure. At the enzyme level, 9-LOX and 13-LOX activities were present in a range of seedling tissues and responded differently to TCDD exposure, as did the 9- and 13-fatty acid hydroperoxide reductase activities. This demonstrates that at least two branches of the oxylipin pathway are involved in responses to the environmental organic toxin, TCDD in date palm.
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Affiliation(s)
- Abdulsamie Hanano
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of SyriaDamascus, Syria
| | - Ibrahem Almousally
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of SyriaDamascus, Syria
| | - Mouhnad Shaban
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of SyriaDamascus, Syria
| | - Farzana Rahman
- Genomics and Computational Biology Group, University of South WalesWales, UK
| | - Mehedi Hassan
- Genomics and Computational Biology Group, University of South WalesWales, UK
| | - Denis J. Murphy
- Genomics and Computational Biology Group, University of South WalesWales, UK
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Iqbal MJ, Majeed M, Humayun M, Lightfoot DA, Afzal AJ. Proteomic Profiling and the Predicted Interactome of Host Proteins in Compatible and Incompatible Interactions Between Soybean and Fusarium virguliforme. Appl Biochem Biotechnol 2016; 180:1657-1674. [PMID: 27491306 DOI: 10.1007/s12010-016-2194-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 07/13/2016] [Indexed: 12/27/2022]
Abstract
Sudden death syndrome (SDS) is a complex of two diseases of soybean (Glycine max), caused by the soil borne pathogenic fungus Fusarium virguliforme. The root rot and leaf scorch diseases both result in significant yield losses worldwide. Partial SDS resistance has been demonstrated in multiple soybean cultivars. This study aimed to highlight proteomic changes in soybean roots by identifying proteins which are differentially expressed in near isogenic lines (NILs) contrasting at the Rhg1/Rfs2 locus for partial resistance or susceptibility to SDS. Two-dimensional gel electrophoresis resolved approximately 1000 spots on each gel; 12 spots with a significant (P < 0.05) difference in abundance of 1.5-fold or more were picked, trypsin-digested, and analyzed using quadruple time-of-flight tandem mass spectrometry. Several spots contained more than one protein, so that 18 distinct proteins were identified overall. A functional analysis performed to categorize the proteins depicted that the major pathways altered by fungal infection include disease resistance, stress tolerance, and metabolism. This is the first report which identifies proteins whose abundances are altered in response to fungal infection leading to SDS. The results provide valuable information about SDS resistance in soybean plants, and plant partial resistance responses in general. More importantly, several of the identified proteins could be good candidates for the development of SDS-resistant soybean plants.
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Affiliation(s)
- M Javed Iqbal
- Department of Plant Sciences, University of California, Davis, California, 95616, USA
| | - Maryam Majeed
- Department of Biology, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore, 54792, Pakistan
- Department of Biological Sciences, Columbia University, New York, NY, 10027, USA
| | - Maheen Humayun
- Department of Biology, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore, 54792, Pakistan
| | - David A Lightfoot
- Department of Molecular Biology, Microbiology, and Biochemistry, Genomics Core Facility and Center for Excellence in Soybean Research, Teaching, and Outreach, and Department of Plant Biology, Southern Illinois University, Carbondale, Illinois, 62901, USA
| | - Ahmed J Afzal
- Department of Biology, SBA School of Science and Engineering, Lahore University of Management Sciences, Lahore, 54792, Pakistan.
- Department of Molecular Biology, Microbiology, and Biochemistry, Genomics Core Facility and Center for Excellence in Soybean Research, Teaching, and Outreach, and Department of Plant Biology, Southern Illinois University, Carbondale, Illinois, 62901, USA.
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Espino-Díaz M, Sepúlveda DR, González-Aguilar G, Olivas GI. Biochemistry of Apple Aroma: A Review. Food Technol Biotechnol 2016; 54:375-397. [PMID: 28115895 PMCID: PMC5253989 DOI: 10.17113/ftb.54.04.16.4248] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 05/16/2016] [Indexed: 12/26/2022] Open
Abstract
Flavour is a key quality attribute of apples defined by volatile aroma compounds. Biosynthesis of aroma compounds involves metabolic pathways in which the main precursors are fatty and amino acids, and the main products are aldehydes, alcohols and esters. Some enzymes are crucial in the production of volatile compounds, such as lipoxygenase, alcohol dehydrogenase, and alcohol acyltransferase. Composition and concentration of volatiles in apples may be altered by pre- and postharvest factors that cause a decline in apple flavour. Addition of biosynthetic precursors of volatile compounds may be a strategy to promote aroma production in apples. The present manuscript compiles information regarding the biosynthesis of volatile aroma compounds, including metabolic pathways, enzymes and substrates involved, factors that may affect their production and also includes a wide number of studies focused on the addition of biosynthetic precursors in their production.
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Affiliation(s)
- Miguel Espino-Díaz
- Research Center for Food and Development (CIAD), Rio Conchos S/N, MX-31570 Cuauhtémoc, Mexico
| | - David Roberto Sepúlveda
- Research Center for Food and Development (CIAD), Rio Conchos S/N, MX-31570 Cuauhtémoc, Mexico
| | - Gustavo González-Aguilar
- Research Center for Food and Development (CIAD), Carretera a la Victoria km. 0.6,
MX-83000 Hermosillo, Mexico
| | - Guadalupe I. Olivas
- Research Center for Food and Development (CIAD), Rio Conchos S/N, MX-31570 Cuauhtémoc, Mexico
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39
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Wang Y, Ma X, Zhang X, He X, Li H, Cui D, Yin D. ITRAQ-Based Proteomic Analysis of the Metabolic Mechanisms Behind Lipid Accumulation and Degradation during Peanut Seed Development and Postgermination. J Proteome Res 2016; 15:4277-4289. [DOI: 10.1021/acs.jproteome.6b00345] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yun Wang
- Henan Agricultural
University, Zhengzhou 450002, China
| | - Xingli Ma
- Henan Agricultural
University, Zhengzhou 450002, China
| | - Xingguo Zhang
- Henan Agricultural
University, Zhengzhou 450002, China
| | - Xiaoyan He
- Henan Agricultural
University, Zhengzhou 450002, China
| | - Hemin Li
- Henan Agricultural
University, Zhengzhou 450002, China
| | - Dangqun Cui
- Henan Agricultural
University, Zhengzhou 450002, China
| | - Dongmei Yin
- Henan Agricultural
University, Zhengzhou 450002, China
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40
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Identification of lipoxygenase (LOX) genes from legumes and their responses in wild type and cultivated peanut upon Aspergillus flavus infection. Sci Rep 2016; 6:35245. [PMID: 27731413 PMCID: PMC5059700 DOI: 10.1038/srep35245] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 09/27/2016] [Indexed: 12/11/2022] Open
Abstract
Lipoxygenase (LOX) genes are widely distributed in plants and play crucial roles in resistance to biotic and abiotic stress. Although they have been characterized in various plants, little is known about the evolution of legume LOX genes. In this study, we identified 122 full-length LOX genes in Arachis duranensis, Arachis ipaënsis, Cajanus cajan, Cicer arietinum, Glycine max, Lotus japonicus and Medicago truncatula. In total, 64 orthologous and 36 paralogous genes were identified. The full-length, polycystin-1, lipoxygenase, alpha-toxin (PLAT) and lipoxygenase domain sequences from orthologous and paralogous genes exhibited a signature of purifying selection. However, purifying selection influenced orthologues more than paralogues, indicating greater functional conservation of orthologues than paralogues. Neutrality and effective number of codons plot results showed that natural selection primarily shapes codon usage, except for C. arietinum, L. japonicas and M. truncatula LOX genes. GCG, ACG, UCG, CGG and CCG codons exhibited low relative synonymous codon usage (RSCU) values, while CCA, GGA, GCU, CUU and GUU had high RSCU values, indicating that the latter codons are strongly preferred. LOX expression patterns differed significantly between wild-type peanut and cultivated peanut infected with Aspergillus flavus, which could explain the divergent disease resistance of wild progenitor and cultivars.
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Hanano A, Almousally I, Shaban M, Rahman F, Blee E, Murphy DJ. Biochemical, Transcriptional, and Bioinformatic Analysis of Lipid Droplets from Seeds of Date Palm (Phoenix dactylifera L.) and Their Use as Potent Sequestration Agents against the Toxic Pollutant, 2,3,7,8-Tetrachlorinated Dibenzo-p-Dioxin. FRONTIERS IN PLANT SCIENCE 2016; 7:836. [PMID: 27375673 PMCID: PMC4896926 DOI: 10.3389/fpls.2016.00836] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 05/27/2016] [Indexed: 05/25/2023]
Abstract
Contamination of aquatic environments with dioxins, the most toxic group of persistent organic pollutants (POPs), is a major ecological issue. Dioxins are highly lipophilic and bioaccumulate in fatty tissues of marine organisms used for seafood where they constitute a potential risk for human health. Lipid droplets (LDs) purified from date palm, Phoenix dactylifera, seeds were characterized and their capacity to extract dioxins from aquatic systems was assessed. The bioaffinity of date palm LDs toward 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), the most toxic congener of dioxins was determined. Fractioned LDs were spheroidal with mean diameters of 2.5 µm, enclosing an oil-rich core of 392.5 mg mL(-1). Isolated LDs did not aggregate and/or coalesce unless placed in acidic media and were strongly associated with three major groups of polypeptides of relative mass 32-37, 20-24, and 16-18 kDa. These masses correspond to the LD-associated proteins, oleosins, caleosins, and steroleosins, respectively. Efficient partitioning of TCDD into LDs occurred with a coefficient of log K LB/w,TCDD = 7.528 ± 0.024; it was optimal at neutral pH and was dependent on the presence of the oil-rich core, but was independent of the presence of LD-associated proteins. Bioinformatic analysis of the date palm genome revealed nine oleosin-like, five caleosin-like, and five steroleosin-like sequences, with predicted structures having putative lipid-binding domains that match their LD stabilizing roles and use as bio-based encapsulation systems. Transcriptomic analysis of date palm seedlings exposed to TCDD showed strong up-regulation of several caleosin and steroleosin genes, consistent with increased LD formation. The results suggest that the plant LDs could be used in ecological remediation strategies to remove POPs from aquatic environments. Recent reports suggest that several fungal and algal species also use LDs to sequester both external and internally derived hydrophobic toxins, which indicates that our approach could be used as a broader biomimetic strategy for toxin removal.
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Affiliation(s)
- Abdulsamie Hanano
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of SyriaDamascus, Syria
| | - Ibrahem Almousally
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of SyriaDamascus, Syria
| | - Mouhnad Shaban
- Department of Molecular Biology and Biotechnology, Atomic Energy Commission of SyriaDamascus, Syria
| | - Farzana Rahman
- Genomics and Computational Biology Group, University of South WalesPontypridd, UK
| | - Elizabeth Blee
- Institut de Biologie Moléculaire des PlantesStrasbourg, France
| | - Denis J. Murphy
- Genomics and Computational Biology Group, University of South WalesPontypridd, UK
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Aanangi R, Kotapati KV, Palaka BK, Kedam T, Kanika ND, Ampasala DR. Purification and characterization of lipoxygenase from mung bean (Vigna radiata L.) germinating seedlings. 3 Biotech 2016; 6:113. [PMID: 28330183 PMCID: PMC5398193 DOI: 10.1007/s13205-016-0427-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 04/26/2016] [Indexed: 12/02/2022] Open
Abstract
This study reports purification and characterization of lipoxygenase protein from mung bean germinating seedlings. Lipoxygenases (LOXs) are key enzymes in seed germination. The purified mung bean LOX has resolved into two peaks by chromatofocusing, one has highest LOX activity with an isoelectric point of 5.84 and the other has lowest LOX activity with an isoelectric point of 5.52. The purified LOX has molecular mass of approximately 97 kDa and showed high activity with linoleic acid than linolenic acid and arachidonic acid. The optimal activity of LOX was observed at pH 6.5 and temperature 35 °C. Far-UV circular dichroism (CD) studies revealed that the purified mung bean LOX possess secondary structural elements with significant α-helix and β-strands. Further, the secondary structure of mung bean LOX was stable up to 60 °C at pH 6.5. Biophysical and chemical properties of the mung bean LOX are similar to the other legume LOXs and may be considered as type-1 LOX.
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Affiliation(s)
- Raveendra Aanangi
- Department of Biochemistry, Sri Venkateswara University, Tirupati, 517 502, Andhra Pradesh, India
| | - Kasi Viswanath Kotapati
- Centre for Bioinformatics, School of Life sciences, Pondicherry University, Puducherry, 605014, India
| | - Bhagath Kumar Palaka
- Centre for Bioinformatics, School of Life sciences, Pondicherry University, Puducherry, 605014, India
| | - Thyagaraju Kedam
- Department of Biochemistry, Sri Venkateswara University, Tirupati, 517 502, Andhra Pradesh, India
| | - Nirmala Devi Kanika
- Department of Biochemistry, Sri Venkateswara University, Tirupati, 517 502, Andhra Pradesh, India
| | - Dinakara Rao Ampasala
- Centre for Bioinformatics, School of Life sciences, Pondicherry University, Puducherry, 605014, India.
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Fischer GJ, Keller NP. Production of cross-kingdom oxylipins by pathogenic fungi: An update on their role in development and pathogenicity. J Microbiol 2016; 54:254-64. [PMID: 26920885 DOI: 10.1007/s12275-016-5620-z] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 02/05/2016] [Indexed: 01/05/2023]
Abstract
Oxylipins are a class of molecules derived from the incorporation of oxygen into polyunsaturated fatty acid substrates through the action of oxygenases. While extensively investigated in the context of mammalian immune responses, over the last decade it has become apparent that oxylipins are a common means of communication among and between plants, animals, and fungi to control development and alter host-microbe interactions. In fungi, some oxylipins are derived nonenzymatically while others are produced by lipoxygenases, cyclooxygenases, and monooxygenases with homology to plant and human enzymes. Recent investigations of numerous plant and human fungal pathogens have revealed oxylipins to be involved in the establishment and progression of disease. This review highlights oxylipin production by pathogenic fungi and their role in fungal development and pathogen/host interactions.
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Affiliation(s)
- Gregory J Fischer
- Department of Genetics, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Nancy P Keller
- Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, 53706, USA.
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HOLKOVÁ I, BILKA F, RAUOVÁ D, BEZÁKOVÁ L. Purification and properties of lipoxygenase from opium poppy seedlings(Papaver somniferum L.). Turk J Biol 2016. [DOI: 10.3906/biy-1507-149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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45
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Losito I, Facchini L, Diomede S, Conte E, Megli FM, Cataldi TRI, Palmisano F. Hydrophilic interaction liquid chromatography-electrospray ionization-tandem mass spectrometry of a complex mixture of native and oxidized phospholipids. J Chromatogr A 2015; 1422:194-205. [PMID: 26508677 DOI: 10.1016/j.chroma.2015.10.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/07/2015] [Accepted: 10/08/2015] [Indexed: 12/28/2022]
Abstract
A mixture of native and oxidized phospholipids (PLs), generated by the soybean lipoxygenase type V-catalyzed partial oxidation of a lipid extract obtained from human platelets, was analyzed by Hydrophilic Interaction Liquid Chromatography-ElectroSpray Ionization-Tandem Mass Spectrometry (HILIC-ESI-MS/MS). The complexity of the resulting mixture was remarkable, considering that the starting lipid extract, containing (as demonstrated in a previous study) about 130 native PLs, was enriched with enzymatically generated hydroperoxylated derivatives and chemically generated hydroxylated forms of PLs bearing polyunsaturated side chains. Nonetheless, the described analytical approach proved to be very powerful; indeed, focusing on phosphatidylcolines (PCs), the most abundant PL class in human platelets, about fifty different native/oxidized species could be identified in a single HILIC-ESI-MS/MS run. Low-energy collision induced dissociation tandem MS (CID-MS/MS) experiments on chromatographically separated species showed single neutral losses of H2O2 and H2O to be typical fragmentation pathways of hydroperoxylated PCs, whereas a single H2O loss was observed for hydroxylated ones. Moreover, diagnostic losses of n-hexanal or n-pentanol were exploited to recognize PCs hydroperoxylated on the last but five carbon atom of a ɷ-6 polyunsaturated side chain. Despite the low resolution of the 3D ion trap mass analyzer used, the described HILIC-ESI-MS/MS approach appears very promising for the identification of oxidized lipids in oxidatively stressed complex biological systems.
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Affiliation(s)
- I Losito
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy; Centro Interdipartimentale SMART, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy.
| | - L Facchini
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy
| | - S Diomede
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy
| | - E Conte
- Dipartimento di Bioscienze, Biotecnologie e Biofarmaceutica, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy
| | - F M Megli
- Dipartimento di Bioscienze, Biotecnologie e Biofarmaceutica, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy
| | - T R I Cataldi
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy; Centro Interdipartimentale SMART, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy
| | - F Palmisano
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy; Centro Interdipartimentale SMART, Università degli Studi di Bari "Aldo Moro", Via E. Orabona 4, 70126 Bari, Italy
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46
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Cloning and characterization of lipoxygenase gene from germinating seedlings of green gram (Vigna radiata L.). ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s40502-015-0186-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Bicalho EM, Pintó-Marijuan M, Morales M, Müller M, Munné-Bosch S, Garcia QS. Control of macaw palm seed germination by the gibberellin/abscisic acid balance. PLANT BIOLOGY (STUTTGART, GERMANY) 2015; 17:990-6. [PMID: 25818098 DOI: 10.1111/plb.12332] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Accepted: 03/25/2015] [Indexed: 05/22/2023]
Abstract
The hormonal mechanisms involved in palm seed germination are not fully understood. To better understand how germination is regulated in Arecaceae, we used macaw palm (Acrocomia aculeata (Jacq.) Lodd. Ex Mart.) seed as a model. Endogenous hormone concentrations, tocopherol and tocotrienol and lipid peroxidation during germination were studied separately in the embryo and endosperm. Evaluations were performed in dry (D), imbibed (I), germinated (G) and non-germinated (NG) seeds treated (+GA3 ) or not treated (control) with gibberellins (GA). With GA3 treatment, seeds germinated faster and to a higher percentage than control seeds. The +GA3 treatment increased total bioactive GA in the embryo during germination relative to the control. Abscisic acid (ABA) concentrations decreased gradually from D to G in both tissues. Embryos of G seeds had a lower ABA content than NG seeds in both treatments. The GA/ABA ratio in the embryo was significantly higher in G than NG seeds. The +GA3 treatment did not significantly affect the GA/ABA ratio in either treatment. Cytokinin content increased from dry to germinated seeds. Jasmonic acid (JA) increased and 1-aminocyclopropane-1-carboylic acid (ACC) decreased after imbibition. In addition, α-tocopherol and α-tocotrienol decreased, while lipid peroxidation increased in the embryo during germination. We conclude that germination in macaw palm seed involves reductions in ABA content and, consequently, increased GA/ABA in the embryo. Furthermore, the imbibition process generates oxidative stress (as observed by changes in vitamin E and MDA).
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Affiliation(s)
- E M Bicalho
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - M Pintó-Marijuan
- Departamento de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - M Morales
- Departamento de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - M Müller
- Departamento de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - S Munné-Bosch
- Departamento de Biologia Vegetal, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - Q S Garcia
- Departamento de Botânica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Cho K, Han J, Rakwal R, Han O. Calcium modulates membrane association, positional specificity, and product distribution in dual positional specific maize lipoxygenase-1. Bioorg Chem 2015; 60:13-8. [PMID: 25899679 DOI: 10.1016/j.bioorg.2015.04.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 04/02/2015] [Accepted: 04/03/2015] [Indexed: 11/18/2022]
Abstract
This study investigates how calcium modulates the properties of dual positional specific maize lipoxygenase-1, including its interaction with substrate, association with subcellular membrane and alteration of product distribution. Bioinformatic analyses identified Asp(38), Glu(127) and Glu(201) as putative calcium binding residues and Leu(37) as a flanking hydrophobic residue also potentially involved in calcium-mediated binding of the enzyme to subcellular membranes. Asp(38) and Leu(37) were shown to be important but not essential for calcium-mediated association of maize lipoxygenase-1 to subcellular membranes in vitro. Kinetic studies demonstrate that catalytic efficiency (Vmax/Km) shows a bell-shaped dependence on log of the molar ratio of substrate to unbound calcium. Calcium also modulates product distribution of the maize lipoxygenase-1 reaction, favoring 13-positional specificity and increasing the relative amount of (E,Z)-isomeric products. The results suggest that calcium regulates the maize lipoxygenase-1 reaction by binding to substrate, and by promoting binding of substrate to enzyme and association of maize lipoxygenase-1 to subcellular membranes.
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Affiliation(s)
- Kyoungwon Cho
- Department of Molecular Biotechnology and Kumho Life Science Laboratory, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Jihoon Han
- Department of Molecular Biotechnology and Kumho Life Science Laboratory, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Randeep Rakwal
- Organization for Educational Initiatives, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan
| | - Oksoo Han
- Department of Molecular Biotechnology and Kumho Life Science Laboratory, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 500-757, Republic of Korea.
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Heshof R, de Graaff LH, Villaverde JJ, Silvestre AJ, Haarmann T, Dalsgaard TK, Buchert J. Industrial potential of lipoxygenases. Crit Rev Biotechnol 2015; 36:665-74. [DOI: 10.3109/07388551.2015.1004520] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ruud Heshof
- Laboratory of Systems and Synthetic Biology, Wageningen University, Wageningen, The Netherlands,
| | - Leo H. de Graaff
- Laboratory of Systems and Synthetic Biology, Wageningen University, Wageningen, The Netherlands,
| | - Juan J. Villaverde
- Department of Chemistry, CICECO, University of Aveiro, Aveiro, Portugal,
- On leave to INIA, DTEVPF, Plant Protection Products Unit, Ctra. de La Coruña, Madrid, Spain,
| | | | | | - Trine K. Dalsgaard
- Department of Food Sciences, Faculty of Science and Technology, Aarhus University, Tjele, Denmark, and
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50
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Schiller D, Contreras C, Vogt J, Dunemann F, Defilippi BG, Beaudry R, Schwab W. A dual positional specific lipoxygenase functions in the generation of flavor compounds during climacteric ripening of apple. HORTICULTURE RESEARCH 2015; 2:15003. [PMID: 26504564 PMCID: PMC4595979 DOI: 10.1038/hortres.2015.3] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 01/09/2015] [Accepted: 01/21/2015] [Indexed: 05/21/2023]
Abstract
Lipoxygenase (LOX) is an important contributor to the formation of aroma-active C6 aldehydes in apple (Malus × domestica) fruit upon tissue disruption but little is known about its role in autonomously produced aroma volatiles from intact tissue. We explored the expression of 22 putative LOX genes in apple throughout ripening, but only six LOXs were expressed in a ripening-dependent manner. Recombinant LOX1:Md:1a, LOX1:Md:1c, LOX2:Md:2a and LOX2:Md:2b proteins showed 13/9-LOX, 9-LOX, 13/9-LOX and 13-LOX activity with linoleic acid, respectively. While products of LOX1:Md:1c and LOX2:Md:2b were S-configured, LOX1:Md:1a and LOX2:Md:2a formed 13(R)-hydroperoxides as major products. Site-directed mutagenesis of Gly567 to an alanine converted the dual positional specific LOX1:Md:1a to an enzyme with a high specificity for 9(S)-hydroperoxide formation. The high expression level of the corresponding MdLOX1a gene in stored apple fruit, the genetic association with a quantitative trait locus for fruit ester and the remarkable agreement in regio- and stereoselectivity of the LOX1:Md:1a reaction with the overall LOX activity found in mature apple fruits, suggest a major physiological function of LOX1:Md:1a during climacteric ripening of apples. While LOX1:Md:1c, LOX2:Md:2a and LOX2:Md:2b may contribute to aldehyde production in immature fruit upon cell disruption our results furnish additional evidence that LOX1:Md:1a probably regulates the availability of precursors for ester production in intact fruit tissue.
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Affiliation(s)
- Doreen Schiller
- Biotechnology of Natural Products, Technische Universität München, Liesel-Beckmann-Str. 1, D-85354 Freising, Germany
| | - Carolina Contreras
- Michigan State University, Department of Horticulture, 1066 Bogue Street, East Lansing, MI 48824, USA
| | - Jörg Vogt
- Julius Kühn-Institut (JKI) – Federal Research Centre for Cultivated Plants, Institute for Breeding Research on Fruit Crops, Pillnitzer Platz 3a, D-01326 Dresden, Germany
| | - Frank Dunemann
- Julius Kühn-Institut (JKI) – Federal Research Centre for Cultivated Plants, Institute for Breeding Research on Horticultural Crops, Erwin-Baur-Str. 27, D-06484 Quedlinburg, Germany
| | | | - Randolph Beaudry
- Michigan State University, Department of Horticulture, 1066 Bogue Street, East Lansing, MI 48824, USA
| | - Wilfried Schwab
- Biotechnology of Natural Products, Technische Universität München, Liesel-Beckmann-Str. 1, D-85354 Freising, Germany
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