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Kunz CF, de Vries S, de Vries J. Plant terrestrialization: an environmental pull on the evolution of multi-sourced streptophyte phenolics. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230358. [PMID: 39343031 DOI: 10.1098/rstb.2023.0358] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/19/2024] [Accepted: 05/20/2024] [Indexed: 10/01/2024] Open
Abstract
Phenolic compounds of land plants are varied: they are chemodiverse, are sourced from different biosynthetic routes and fulfil a broad spectrum of functions that range from signalling phytohormones, to protective shields against stressors, to structural compounds. Their action defines the biology of land plants as we know it. Often, their roles are tied to environmental responses that, however, impacted already the algal progenitors of land plants, streptophyte algae. Indeed, many streptophyte algae successfully dwell in terrestrial habitats and have homologues for enzymatic routes for the production of important phenolic compounds, such as the phenylpropanoid pathway. Here, we synthesize what is known about the production of specialized phenolic compounds across hundreds of millions of years of streptophyte evolution. We propose an evolutionary scenario in which selective pressures borne out of environmental cues shaped the chemodiversity of phenolics in streptophytes. This article is part of the theme issue 'The evolution of plant metabolism'.
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Affiliation(s)
- Cäcilia F Kunz
- Department of Applied Bioinformatics, Institute for Microbiology and Genetics, University of Goettingen , Goettingen 37077, Germany
| | - Sophie de Vries
- Department of Applied Bioinformatics, Institute for Microbiology and Genetics, University of Goettingen , Goettingen 37077, Germany
| | - Jan de Vries
- Department of Applied Bioinformatics, Institute for Microbiology and Genetics, University of Goettingen , Goettingen 37077, Germany
- Campus Institute Data Science (CIDAS), University of Goettingen , Goettingen 37077, Germany
- Goettingen Center for Molecular Biosciences (GZMB), Department of Applied Bioinformatics, University of Goettingen , Goettingen 37077, Germany
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Yokoyama R. Evolution of aromatic amino acid metabolism in plants: a key driving force behind plant chemical diversity in aromatic natural products. Philos Trans R Soc Lond B Biol Sci 2024; 379:20230352. [PMID: 39343022 PMCID: PMC11439500 DOI: 10.1098/rstb.2023.0352] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/07/2024] [Accepted: 06/19/2024] [Indexed: 10/01/2024] Open
Abstract
A diverse array of plant aromatic compounds contributes to the tremendous chemical diversity in the plant kingdom that cannot be seen in microbes or animals. Such chemodiversity of aromatic natural products has emerged, occasionally in a lineage-specific manner, to adopt to challenging environmental niches, as various aromatic specialized metabolites play indispensable roles in plant development and stress responses (e.g. lignin, phytohormones, pigments and defence compounds). These aromatic natural products are synthesized from aromatic amino acids (AAAs), l-tyrosine, l-phenylalanine and l-tryptophan. While amino acid metabolism is generally assumed to be conserved between animals, microbes and plants, recent phylogenomic, biochemical and metabolomic studies have revealed the diversity of the AAA metabolism that supports efficient carbon allocation to downstream biosynthetic pathways of AAA-derived metabolites in plants. This review showcases the intra- and inter-kingdom diversification and origin of committed enzymes involved in plant AAA biosynthesis and catabolism and their potential application as genetic tools for plant metabolic engineering. I also discuss evolutionary trends in the diversification of plant AAA metabolism that expands the chemical diversity of AAA-derived aromatic natural products in plants. This article is part of the theme issue 'The evolution of plant metabolism'.
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Affiliation(s)
- Ryo Yokoyama
- Max Planck Institute of Molecular Plant Physiology , Potsdam, Am Mühlenberg 1 14476, Germany
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3
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Shang S, Liang X, Liu G, Du Y, Zhang S, Meng Y, Zhu J, Rollins JA, Zhang R, Sun G. A fungal effector suppresses plant immunity by manipulating DAHPS-mediated metabolic flux in chloroplasts. THE NEW PHYTOLOGIST 2024; 244:1552-1569. [PMID: 39327824 DOI: 10.1111/nph.20117] [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: 12/21/2023] [Accepted: 08/16/2024] [Indexed: 09/28/2024]
Abstract
Plant secondary metabolism represents an important and ancient form of defense against pathogens. Phytopathogens secrete effectors to suppress plant defenses and promote infection. However, it is largely unknown, how fungal effectors directly manipulate plant secondary metabolism. Here, we characterized a fungal defense-suppressing effector CfEC28 from Colletotrichum fructicola. Gene deletion assays showed that ∆CfEC28-mutants differentiated appressoria normally on plant surface but were almost nonpathogenic due to increased number of plant papilla accumulation at attempted penetration sites. CfEC28 interacted with a family of chloroplast-localized 3-deoxy-d-arabinose-heptulonic acid-7-phosphate synthases (DAHPSs) in apple. CfEC28 inhibited the enzymatic activity of an apple DAHPS (MdDAHPS1) and suppressed DAHPS-mediated secondary metabolite accumulation through blocking the manganese ion binding region of DAHPS. Dramatically, transgene analysis revealed that overexpression of MdDAHPS1 provided apple with a complete resistance to C. fructicola. We showed that a novel effector CfEC28 can be delivered into plant chloroplasts and contributes to the full virulence of C. fructicola by targeting the DAHPS to disrupt the pathway linking the metabolism of primary carbohydrates with the biosynthesis of aromatic defense compounds. Our study provides important insights for understanding plant-microbe interactions and a valuable gene for improving plant disease resistance.
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Affiliation(s)
- Shengping Shang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiaofei Liang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guangli Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Youwei Du
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Song Zhang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yanan Meng
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Junming Zhu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Jeffrey A Rollins
- Department of Plant Pathology, University of Florida, Gainesville, FL, 32611, USA
| | - Rong Zhang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Guangyu Sun
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, 712100, China
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Wen Z, Liu Z, Bu H, Liu Y, Zhu J, Hu F, Li Z, Huang B, Peng F. Metabolome and transcriptome unveil the mechanism of light on regulating beauvericin synthesis in Cordyceps chanhua. Fungal Biol 2024; 128:2102-2112. [PMID: 39384280 DOI: 10.1016/j.funbio.2024.08.005] [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: 03/30/2024] [Revised: 07/25/2024] [Accepted: 08/11/2024] [Indexed: 10/11/2024]
Abstract
Cordyceps chanhua, an important cordycipitoid medical mushroom with wide use in Asia, has gained attention for its bioactive component beauvericin (BEA), which is of medicinal value as a drug lead, but also of food safety risk. Recent observations by our group revealed a significant decrease of BEA content in C. chanhua when exposed to light, but the underlying regulatory mechanisms remain elusive. In this study, a comprehensive approach combining metabolomics and transcriptomics was employed to investigate the effects of white light on the secondary metabolism of C. chanhua for elucidation of the influence of light on BEA biosynthesis in this fungus. The result showed that the genes and metabolites involved in the synthesis of D-hydroxyisovaleric acid, a precursor of BEA synthesis, were down-regulated under light exposure, while those associated with the synthesis of phenylalanine, another precursor of BEA synthesis, were up-regulated leading to elevated phenylalanine levels. It suggested that the suppressive effect of light on BEA synthesis in C. chanhua occurred primarily through the inhibition of D-hydroxyisovaleric acid synthesis, while the enhanced phenylalanine biosynthesis likely directed towards other metabolic pathway such as pigment synthesis. These results contributed to a better understanding on how light modulates the secondary metabolism of C. chanhua and provided valuable guidance for optimizing BEA production in cultivation practices.
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Affiliation(s)
- Zhiyuan Wen
- Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, China
| | - Zhimin Liu
- Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, China
| | - Haifen Bu
- Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, China
| | - Yanwen Liu
- Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, China
| | - Jiahua Zhu
- Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, China
| | - Fenglin Hu
- Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, China
| | - Zengzhi Li
- Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, China
| | - Bo Huang
- Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, China
| | - Fan Peng
- Anhui Provincial Key Laboratory for Microbial Control, Anhui Agricultural University, Hefei 230036, China.
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Liang ZW, Guan YH, Lv Z, Yang SC, Zhang GH, Zhao YH, Zhao M, Chen JW. Optimization of saponin extraction from the leaves of Panax notoginseng and Panax quinquefolium and evaluation of their antioxidant, antihypertensive, hypoglycemic and anti-inflammatory activities. Food Chem X 2024; 23:101642. [PMID: 39113743 PMCID: PMC11304882 DOI: 10.1016/j.fochx.2024.101642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 07/04/2024] [Accepted: 07/08/2024] [Indexed: 08/10/2024] Open
Abstract
Panax notoginseng and Panax quinquefolium are important economic plants that utilize dried roots for medicinal and food dual purposes; there is still insufficient research of their stems and leaves, which also contain triterpenoid saponins. The extraction process was developed with a total saponin content of 12.30 ± 0.34% and 12.19 ± 0.64% for P. notoginseng leaves (PNL) and P. quinquefolium leaves (PQL) extracts, respectively. PNL and PQL saponin extracts showed good antioxidant, antihypertensive, hypoglycemic, and anti-inflammatory properties in vitro and RAW264.7 cells. A total of 699 metabolites were identified in PNL and PQL saponin extracts, with the majority being triterpenoid saponins, flavonoids and amino acids. Fourteen ginsenosides, 18 flavonoids or alkaloids, and 16 amino acids were enriched in both saponin extracts. Overall, the utilization of saponins from medicinal plants PNL and PQL has been developed to facilitate systematic research in the functional food and natural product industries.
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Affiliation(s)
- Zheng-Wei Liang
- College of Agronomy and Biotechnology & The Key Laboratory of Medicinal Plant Biology of Yunnan Province & National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming 650201, People's Republic of China
| | - Yan-Hui Guan
- College of Agronomy and Biotechnology & The Key Laboratory of Medicinal Plant Biology of Yunnan Province & National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming 650201, People's Republic of China
| | - Zheng Lv
- College of Agronomy and Biotechnology & The Key Laboratory of Medicinal Plant Biology of Yunnan Province & National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- College of Tea Science, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming 650201, People's Republic of China
| | - Sheng-Chao Yang
- College of Agronomy and Biotechnology & The Key Laboratory of Medicinal Plant Biology of Yunnan Province & National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming 650201, People's Republic of China
| | - Guang-Hui Zhang
- College of Agronomy and Biotechnology & The Key Laboratory of Medicinal Plant Biology of Yunnan Province & National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming 650201, People's Republic of China
| | - Yin-He Zhao
- College of Agronomy and Biotechnology & The Key Laboratory of Medicinal Plant Biology of Yunnan Province & National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming 650201, People's Republic of China
| | - Ming Zhao
- College of Agronomy and Biotechnology & The Key Laboratory of Medicinal Plant Biology of Yunnan Province & National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- College of Tea Science, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming 650201, People's Republic of China
| | - Jun-Wen Chen
- College of Agronomy and Biotechnology & The Key Laboratory of Medicinal Plant Biology of Yunnan Province & National Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming 650201, People's Republic of China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming 650201, People's Republic of China
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Ziroldo JC, Torres LMB, Gamberini MT. Sugarcane (Saccharum officinarum L.) induces psychostimulant, anxiolytic-like effects and improvement of motor performance in rats. JOURNAL OF ETHNOPHARMACOLOGY 2024; 333:118476. [PMID: 38908491 DOI: 10.1016/j.jep.2024.118476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/03/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Sugarcane (Saccharum officinarum L.) is reported by traditional medicine as tonic, stimulating and beneficial in increasing resistance to fatigue. Previous preclinical studies in rats using aqueous extract of sugarcane leaves (AE) revealed pharmacological effects on the central nervous and cardiovascular systems involving the participation of dopaminergic pathways. This neurotransmission system is also related to motor, emotional and cognitive activities, which could, in part, justify the ethnopharmacological information. AIM OF STUDY The present study aimed to investigate the motor, emotional and cognitive activities of rats submitted to AE treatment using behavioral tests in order to correlate the pharmacological effects with the therapeutic benefits postulated by traditional medicine. Additionally, the chemical profile of AE was evaluated by HPLC-UV/Vis, and the presence of shikimic acid, vitexin, and ferulic acid, as possible chemical markers, was investigated through comparisons of chemical parameters with the authentic patterns, and a UV-Vis scan of known spectra. MATERIAL AND METHODS Rats received water (1.5 mL/kg, p.o.) and AE (0.5, 10 and 500 mg/kg, p.o.) in the absence and presence of haloperidol (0.5 mg/kg, i.p.), 90 min before open field; rotarod; elevated plus maze and inhibitory avoidance tests for investigation of motor; emotional and cognitive responses. As a positive control was used apomorphine (0.25 mg/kg, s.c.). The chemical profile of AE was evaluated by HPLC-UV/Vis and the presence of shikimic acid, vitexin and ferulic acid, as possible chemical markers, was investigated through comparisons with the retention times, an increase of the integral of the peak area determined by co-injection of AE with the authentic patterns, and a UV-Vis scan of known spectra. RESULTS In open field, it revealed that AE increased locomotion; reduced rearing but did not change freezing and grooming. Besides, AE increased motor performance in rotarod and reduced anxiety in elevated plus maze. A relation dose-response was observed in these tests where the lowest dose of AE was more effective in developing pharmacological responses. Previous administration of haloperidol inhibited the responses of AE. Inhibitory avoidance test revealed that AE did not modify fast-learning and associative memory. CONCLUSIONS Sugarcane induced psychostimulant, anxiolytic-like effects, and improvement of motor performance in rats, with the involvement of dopaminergic pathways. The present study points to AE as a potential adaptogen but, in addition to behavioral assessments, metabolic and molecular aspects, that involve the participation of a variety of regulatory systems, will be investigated in futures studies. Phytochemical analyses showed that AE is a complex matrix and revealed shikimic acid, vitexin, and ferulic acid as potential chemical markers.
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Affiliation(s)
- Juliana Corsini Ziroldo
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences - School of Medicine, São Paulo, SP, Brazil.
| | | | - Maria Thereza Gamberini
- Department of Physiological Sciences, Santa Casa de Sao Paulo School of Medical Sciences - School of Medicine, São Paulo, SP, Brazil.
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Datta S, Paul S, Ballabh L, Mitra A. Histochemical and molecular analyses reveal an insight into the scent volatiles synthesis and emission in ephemeral flowers of Murraya paniculata (L.) Jack. PLANTA 2024; 260:119. [PMID: 39422757 DOI: 10.1007/s00425-024-04552-6] [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: 06/15/2024] [Accepted: 10/10/2024] [Indexed: 10/19/2024]
Abstract
MAIN CONCLUSION Temporal histolocalization of floral volatiles in the petal epidermis of Murraya paniculata was found to be linked with the coordinated expression of candidate genes and successive accumulation of an internal pool of volatiles. Murraya paniculata (Rutaceae) is known for its highly fragrant ephemeral flowers that emit volatiles to attract nocturnal pollinators. To unfold the patterns of volatile emission in relation to floral life-span, we studied time-course accumulation and emission rate of scent volatiles at six timepoints of floral maturation, at an interval of 4 h starting from the bud stage to the senescence stage on the next day. This study revealed the maximum emission rate of scent volatiles at the anthesis stage at 18:00 h. This finding correlates well with the maximum accumulation of volatiles in the internal pool of the flowers at this stage. The key volatiles detected in both emitted and internal pools were benzaldehyde, benzeneacetaldehyde, linalool, caryophyllene, germacrene-D and α-farnesene. In addition, the internal pool also contained substantial amounts of indole, scopoletin, caffeine and osthole. To histochemically localize the temporal accumulation of major volatile groups in the epidermal cells, petal cross sections were stained with NaDi and ferric chloride to visualize terpenes and phenolics, respectively, under light microscope. Histolocalization studies showed a higher accumulation of terpenes at 14:00 h and 18:00 h, which subsequently was reduced as senescence approached. Significant phenolics in the abaxial and adaxial layers of the petal epidermis accumulated at 18:00 h and at the early senescence (06:00 h) stages. Furthermore, temporal localization of active shikimate dehydrogenase (SKDH) protein through in-gel activity assay demonstrated higher enzymatic activities at anthesis (18:00 h) and fully bloomed (02:00 h) stages, supporting the findings of higher accumulation of phenolic volatiles at 18:00 h and 06:00 h stages. Expression analysis of major candidate genes of floral scent volatiles pathway supported the hypothesis that the emission rate of floral fragrance reached its maximum at the anthesis (18:00 h) stage. In contrast, biosynthesis of scent compounds started at the bud (14:00 h) stage itself as indicated by the RT-PCR semi-quantitative estimation. As flowers of M. paniculata attract multiple pollinator species, this study could also serve as a springboard for pollination biology in Rutaceae, which includes important fruit crops.
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Affiliation(s)
- Sinjini Datta
- Natural Product Biotechnology Group, Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Shobhon Paul
- Natural Product Biotechnology Group, Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Lopamudra Ballabh
- Natural Product Biotechnology Group, Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Adinpunya Mitra
- Natural Product Biotechnology Group, Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India.
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Fuchs B, Helander M, Saikkonen K, Dobrev PI, Vankova R, Blande JD, Salminen JP, Luntamo N, Muola A. Plant metabolic responses to soil herbicide residues differ under herbivory in two woodland strawberry genotypes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174198. [PMID: 38914330 DOI: 10.1016/j.scitotenv.2024.174198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 06/18/2024] [Accepted: 06/20/2024] [Indexed: 06/26/2024]
Abstract
The use of glyphosate-based herbicides (GBHs) to control weeds has increased exponentially in recent decades, and their residues and degradation products have been found in soils across the globe. GBH residues in soil have been shown to affect plant physiology and specialised metabolite biosynthesis, which, in turn, may impact plant resistance to biotic stressors. In a greenhouse study, we investigated the interactive effects between soil GBH residues and herbivory on the performance, phytohormone concentrations, phenolic compound concentrations and volatile organic compound (VOC) emissions of two woodland strawberry (Fragaria vesca) genotypes, which were classified as herbivore resistant and herbivore susceptible. Plants were subjected to herbivory by strawberry leaf beetle (Galerucella tenella) larvae, and to GBH residues by growing in soil collected from a field site with GBH treatments twice a year over the past eight years. Soil GBH residues reduced the belowground biomass of the susceptible genotype and the aboveground biomass of both woodland strawberry genotypes. Herbivory increased the belowground biomass of the resistant genotype and the root-shoot ratio of both genotypes. At the metabolite level, herbivory induced the emission of several VOCs. Jasmonic acid, abscisic acid and auxin concentrations were induced by herbivory, in contrast to salicylic acid, which was only induced by herbivory in combination with soil GBH residues in the resistant genotype. The concentrations of phenolic compounds were higher in the resistant genotype compared to the susceptible genotype and were induced by soil GBH residues in the resistant genotype. Our results indicate that soil GBH residues can differentially affect plant performance, phytohormone concentrations and phenolic compound concentrations under herbivore attack, in a genotype-dependent manner. Soil GBH altered plant responses to herbivory, which may impact plant resistance traits and species interactions. With ongoing agrochemical pollution, we need to consider plant cultivars with better resistance to polluted soils while maintaining plant resilience under challenging environmental conditions.
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Affiliation(s)
- Benjamin Fuchs
- Biodiversity Unit, University of Turku, 20014 Turku, Finland.
| | - Marjo Helander
- Department of Biology, University of Turku, 20014 Turku, Finland
| | - Kari Saikkonen
- Biodiversity Unit, University of Turku, 20014 Turku, Finland
| | - Petre I Dobrev
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech Republic
| | - Radomira Vankova
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, Rozvojova 263, 16502 Prague, Czech Republic
| | - James D Blande
- Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, 70211 Kuopio, Finland
| | - Juha-Pekka Salminen
- Natural Chemistry Research Group, Department of Chemistry, FI-20014, University of Turku, Finland
| | - Niko Luntamo
- Natural Chemistry Research Group, Department of Chemistry, FI-20014, University of Turku, Finland
| | - Anne Muola
- Biodiversity Unit, University of Turku, 20014 Turku, Finland; Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Ås, Norway
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Song Y, Tang H, Zhang Z, Sun X, Ding X, Guo X, Wang Q, Chen J, Dong W. A Novel MsEOBI-MsPAL1 Module Enhances Salinity Stress Tolerance, Floral Scent Emission and Seed Yield in Alfalfa. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39360571 DOI: 10.1111/pce.15183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 09/05/2024] [Accepted: 09/15/2024] [Indexed: 10/04/2024]
Abstract
Alfalfa (Medicago sativa L.) is an important and widely cultivated forage legume, yet its yield is constrained by salinity stress. In this study, we characterized an R2R3-MYB transcription factor MsEOBI in alfalfa. Its salt tolerance function and regulatory pathways were investigated. The nuclear-localized MsEOBI functions as a transcriptional activator, enhancing salinity tolerance by promoting the biosynthesis of flavonoids and lignin, as well as facilitating the scavenging of reactive oxygen species (ROS). Additionally, MsEOBI promotes pollinator attraction and increases seed yield by activating the biosynthesis of volatile phenylpropanoids. Yeast one-hybrid (Y1H), dual-luciferase reporter and chromatin immunoprecipitation coupled with quantitative PCR (ChIP-qPCR) assays demonstrated that MsEOBI directly binds to the promoter regions of MsPAL1, a key gene in the phenylpropanoid pathway, thereby activating its expression. Overexpression of MsPAL1 enhances salinity tolerance in alfalfa. These findings elucidate the role of the MsEOBI-MsPAL1 regulatory module and provide valuable genetic resources for the future breeding of salt-tolerant alfalfa varieties.
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Affiliation(s)
- Yuguang Song
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, People's Republic of China
| | - Haoyan Tang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, People's Republic of China
| | - Zhaoran Zhang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, People's Republic of China
| | - Xueying Sun
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, People's Republic of China
| | - Xinru Ding
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, People's Republic of China
| | - Xinying Guo
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, People's Republic of China
| | - Qi Wang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, People's Republic of China
| | - Jifeng Chen
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, People's Republic of China
| | - Wei Dong
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, People's Republic of China
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10
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Li J, Guan J, Zhong S, Chen C, Tan F, Luo P. Large-scale analysis of the PAC domain structure of arogenate dehydratases reveals their evolutionary patterns in angiosperms. Int J Biol Macromol 2024; 278:134666. [PMID: 39154687 DOI: 10.1016/j.ijbiomac.2024.134666] [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: 05/10/2024] [Revised: 06/16/2024] [Accepted: 08/09/2024] [Indexed: 08/20/2024]
Abstract
Arogenate dehydratase (ADT) is the key limiting enzyme of plant phenylalanine biosynthesis, but some ADTs display a prephenate decarboxylase/dehydratase activity-conferring (PAC) domain. The genome resources of 70 species were employed to identify genes and outline their characteristics, especially the number and type of PAC domain structures. We obtained 522 ADTs, and their size, exon number, amino acid number and putative protein isoelectric point greatly varied from 306 to 2520 bp, 1 to 15, 101 to 839 and 4.37 to 11.18, respectively. We classified the ADTs into Class α (without a PAC domain) (115, 22.0 %), β (with a type I PAC domain) (244, 46.7 %) and γ (with a type II PAC domain) (163, 31.2 %), and their distribution frequencies exhibited large differences among various branches of angiosperms. We found that Class γ members are more conserved than Class β members, although they commonly experienced multiple duplication events and strong purifying selection, which resulted in a small number, and the putative origin order was from Class α to β and then to γ. In addition, the co-occurrence of both Class β and γ members could ensure the survival of angiosperms, while their optimized composition and strategically intertwined regulation may facilitate core eudicot success.
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Affiliation(s)
- Jie Li
- Rice Research Institute, Sichuan Agricultural University, 211, Huimin Road, Wenjiang District, Chengdu 611130, China; Provincial Key Laboratory for Plant Genetics and Breeding, College of Agronomy, Sichuan Agricultural University, Chengdu 611134, China
| | - Ju Guan
- Provincial Key Laboratory for Plant Genetics and Breeding, College of Agronomy, Sichuan Agricultural University, Chengdu 611134, China
| | - Shengfu Zhong
- Provincial Key Laboratory for Plant Genetics and Breeding, College of Agronomy, Sichuan Agricultural University, Chengdu 611134, China
| | - Chen Chen
- Provincial Key Laboratory for Plant Genetics and Breeding, College of Agronomy, Sichuan Agricultural University, Chengdu 611134, China
| | - Feiquan Tan
- Provincial Key Laboratory for Plant Genetics and Breeding, College of Agronomy, Sichuan Agricultural University, Chengdu 611134, China
| | - Peigao Luo
- Rice Research Institute, Sichuan Agricultural University, 211, Huimin Road, Wenjiang District, Chengdu 611130, China; Provincial Key Laboratory for Plant Genetics and Breeding, College of Agronomy, Sichuan Agricultural University, Chengdu 611134, China.
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11
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Chen Y, Shan L, Zheng W, Chen J, Deng L, Tian X, Xie R, Yang Y, Zhang L, Yang B. Global lysine succinylation analysis unveils post-translational regulation effect on phenylpropanoid metabolism remodeling during Lonicera japonica flower development. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:108978. [PMID: 39084169 DOI: 10.1016/j.plaphy.2024.108978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 07/23/2024] [Accepted: 07/25/2024] [Indexed: 08/02/2024]
Abstract
Lonicera japonica plays a significant role in traditional Chinese medicine and as a food source, making it a focus of studies on protein succinylation and its potential role in regulating secondary metabolism during flower development. This study aimed to clarify the regulatory mechanism of protein succinylation on phenylpropanoid-related phenotypic changes by conducting a global lysine succinylation proteomic analysis across different flowering stages. A total of 586 lysine succinylated peptides in 303 proteins were identified during early and late floral stages. Functional enrichment analysis revealed that succinylated proteins primarily participated in the tricarboxylic acid (TCA) cycle, amino acid metabolism, and secondary metabolism. The abundance of succinylated aspartate transaminase (AT), 4-coumarate-CoA ligase (4CL), and phenylalanine N-hydroxylase (CYP79A2) in phenylpropanoid metabolism varied during flower development. In vitro experiments demonstrated that succinylation increased AT activity while inhibited 4CL activity. Decreased levels of total flavonoids and phenolic acids indicated significant alterations in phenylpropanoid metabolism during later floral stages. These results suggest that succinylation of TCA cycle proteins not only influences flower development but also, together with AT-4CL-CYP79A2 co-succinylation, redirects phenylpropanoid metabolism during flower development in L. japonica.
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Affiliation(s)
- Yao Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Luhuizi Shan
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Wenxi Zheng
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Jie Chen
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Linfang Deng
- The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310005, China
| | - Xu Tian
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Ruili Xie
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yunhong Yang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Lin Zhang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Bingxian Yang
- College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
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12
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Yuan Y, Sheng CL, Pang LH, Lu BR. Bifunctional Phenylalanine/Tyrosine Ammonia-Lyase (PTAL) Enhances Lignin Biosynthesis: Implications in Carbon Fixation in Plants by Genetic Engineering. BIOLOGY 2024; 13:742. [PMID: 39336169 PMCID: PMC11429144 DOI: 10.3390/biology13090742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2024] [Revised: 09/18/2024] [Accepted: 09/19/2024] [Indexed: 09/30/2024]
Abstract
Lignin is a key metabolite for terrestrial plants. Two types of aromatic amino acids, phenylalanine (Phe) and tyrosine (Tyr), serve as the precursors for lignin biosynthesis. In most plant species, Phe is deaminated by Phe ammonia-lyase (PAL) to initiate lignin biosynthesis, but in grass species, Phe and Tyr are deaminated by Phe/Tyr ammonia-lyase (PTAL). To understand the efficiency of PAL and PTAL, we used transgenic and non-transgenic Arabidopsis with PAL and crop-weedy rice hybrids (CWRH) with PTAL to analyze lignin-biosynthesis-associated metabolites. The transgenic plants overexpressed the exogenous 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) gene, whereas the non-transgenic plants normally expressed the endogenous EPSPS gene. Our results show significantly increased Phe/Tyr contents in transgenic Arabidopsis and CWRH plants, leading to substantially increased lignin and biomass. In addition, the PTAL pathway promotes a much greater proportion of increased lignin and biomass in transgenic CWRH than in transgenic Arabidopsis lineages. Evidently, more efficient lignin biosynthesis characterized the grass species possessing the PTAL pathway. These findings are important for a better understanding of the PAL and PTAL's functions in the phenylpropanoid metabolic pathways in the evolution of plant species. These findings also have great value for implications such as effective carbon fixation by enhancing lignin biosynthesis through genetic engineering of their key genes in appropriately selected plant species.
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Affiliation(s)
- Ye Yuan
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Ecology and Evolutionary Biology, Fudan University, Songhu Road 2005, Shanghai 200438, China
| | - Chao-Lei Sheng
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Ecology and Evolutionary Biology, Fudan University, Songhu Road 2005, Shanghai 200438, China
| | - Li-Hao Pang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Ecology and Evolutionary Biology, Fudan University, Songhu Road 2005, Shanghai 200438, China
| | - Bao-Rong Lu
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Department of Ecology and Evolutionary Biology, Fudan University, Songhu Road 2005, Shanghai 200438, China
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13
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Martin BC, De-la-Cruz-Chacón I, Mimi CO, Boaro CSF, Campos FG, Moreira-Coneglian IR, Ferreira G. Impact of External Sources of Indole Acetic Acid and 2,3,5-Triiodobenzoic Acid on Alkaloid Production and Their Relationships with Primary Metabolism and Antioxidant Activity in Annona emarginata (Schltdl.) H. Rainer. PLANTS (BASEL, SWITZERLAND) 2024; 13:2637. [PMID: 39339614 PMCID: PMC11434801 DOI: 10.3390/plants13182637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2024] [Revised: 09/17/2024] [Accepted: 09/19/2024] [Indexed: 09/30/2024]
Abstract
Annona emarginata is a native Brazilian species capable of producing at least ten alkaloids of ecological, agronomic, and pharmacological importance. Some studies have explored the effect of external phytoregulators on the production of alkaloids, including the effect of auxins, which, like alkaloids, derive from the shikimic acid pathway. Thus, this study aimed to evaluate how indole acetic acid (IAA) and its inhibitor 2,3,5-triiodobenzoic acid (TIBA) impact the production of alkaloids and the primary metabolism of A. emarginata, which brings advances in the understanding of the mechanisms of alkaloid synthesis and can aid in the bioprospection of molecules of interest in Annonaceae. The design was completely randomized, with three treatments (control, IAA [10-6 M] and TIBA [10-6 M]) and five collection times (12, 36, 84, 156, and 324 h). The following variables were analyzed: total alkaloids, alkaloid profile, nitrate reductase activity, gas exchange in photosynthesis, chlorophyll a fluorescence, sugars, starch, and antioxidant activity. Of the twelve alkaloids analyzed, discretine and xylopine were not detected in the control plants; however, both were detected when IAA was applied (in roots and leaves) and xylopine (in roots) when the inhibitor was applied. The alkaloid asimilobine was not detected with the use of TIBA. Variations in alkaloid concentrations occurred in a punctual manner, without significant variations in photosynthesis and nitrate reductase activity, but with variations in the antioxidant system and sugar concentrations, mainly at 156 h, when the highest alkaloid concentrations were observed with the use of TIBA. It could be concluded that IAA is capable of selectively modulating the production of alkaloids in A. emarginata, either due to an external source or by the application of its inhibitor (TIBA).
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Affiliation(s)
- Bruna Cavinatti Martin
- Department of Biodiversity and Biostatistics, Institute of Biosciences, São Paulo State University (UNESP), Prof. Dr. Antônio Celso Wagner Zanin Street, 250, Botucatu 18618-689, SP, Brazil; (B.C.M.); (C.S.F.B.); (F.G.C.); (I.R.M.-C.); (G.F.)
| | - Ivan De-la-Cruz-Chacón
- Laboratorio de Fisiología y Química Vegetal, Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Libramiento Norte-Poniente 1150, Tuxtla Gutiérrez 29039, Chiapas, Mexico;
| | - Carolina Ovile Mimi
- Department of Biodiversity and Biostatistics, Institute of Biosciences, São Paulo State University (UNESP), Prof. Dr. Antônio Celso Wagner Zanin Street, 250, Botucatu 18618-689, SP, Brazil; (B.C.M.); (C.S.F.B.); (F.G.C.); (I.R.M.-C.); (G.F.)
| | - Carmen Silvia Fernandes Boaro
- Department of Biodiversity and Biostatistics, Institute of Biosciences, São Paulo State University (UNESP), Prof. Dr. Antônio Celso Wagner Zanin Street, 250, Botucatu 18618-689, SP, Brazil; (B.C.M.); (C.S.F.B.); (F.G.C.); (I.R.M.-C.); (G.F.)
| | - Felipe Girotto Campos
- Department of Biodiversity and Biostatistics, Institute of Biosciences, São Paulo State University (UNESP), Prof. Dr. Antônio Celso Wagner Zanin Street, 250, Botucatu 18618-689, SP, Brazil; (B.C.M.); (C.S.F.B.); (F.G.C.); (I.R.M.-C.); (G.F.)
| | - Inara Regiane Moreira-Coneglian
- Department of Biodiversity and Biostatistics, Institute of Biosciences, São Paulo State University (UNESP), Prof. Dr. Antônio Celso Wagner Zanin Street, 250, Botucatu 18618-689, SP, Brazil; (B.C.M.); (C.S.F.B.); (F.G.C.); (I.R.M.-C.); (G.F.)
| | - Gisela Ferreira
- Department of Biodiversity and Biostatistics, Institute of Biosciences, São Paulo State University (UNESP), Prof. Dr. Antônio Celso Wagner Zanin Street, 250, Botucatu 18618-689, SP, Brazil; (B.C.M.); (C.S.F.B.); (F.G.C.); (I.R.M.-C.); (G.F.)
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14
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Xiong Z, Ding Z, Sun J, Jiang X, Cong H, Sun H, Qiao F. In vivo assembly in tobacco cells to elucidate and engineer the biosynthesis of 4-hydroxydihydrocinnamaldehyde from Gloriosa superba. PLANT CELL REPORTS 2024; 43:235. [PMID: 39299972 DOI: 10.1007/s00299-024-03318-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2024] [Accepted: 09/10/2024] [Indexed: 09/22/2024]
Abstract
KEY MESSAGE This study described the biosynthesis of 4-hydroxydihydrocinnamaldehyde sharing with monolignol pathway and supplemented the biosynthesis of colchicine in G. superba, 4-hydroxydihydrocinnamaldehyde produced in tobacco BY2 cells provided an important stepstone. The precursor, 4-hydroxydihydrocinnamaldehyde (4-HDCA), participates in the biosynthesis of the carbon skeleton of colchicine, which is derived from L-phenylalanine. However, one hypothesis proposed that 4-HDCA is synthesized by sharing the early part of the monolignol pathway in G. superba. In this study, we validated this prediction and identified the enzymatic functions involved in this pathway. GsDBR1 is a crucial enzyme to illustrate 4-HDCA diverging from monolignol pathway, we first confirmed its reductase activity on 4-coumaraldehyde, an important intermediate compound in monolignol biosynthesis. Then, the biochemical function of recombinant enzymes belonging to the other four families were verified to elucidate the entire process of 4-HDCA biosynthesis from L-phenylalanine. After reconstruction, the 4-HDCA was 78.4 ng/g with fresh weight (FW) of transgenic tobacco cells, and the yield increased to 168.22 ng/g·FW after improved treatment with methyl jasmonate (MeJA). The elucidation of 4-HDCA biosynthesis sharing the monolignol pathway supplemented the biosynthesis of colchicine in G. superba, and the production of 4-HDCA in tobacco cells provides an important step in the development of plant cell cultures as heterologous bio-factories for secondary metabolite production.
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Affiliation(s)
- Zhiqiang Xiong
- National Key Laboratory for Tropical Crops Breeding, Sanya, 572024, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Hainan Key Laboratory of Sustainable Utilization of Tropical Bioresources, Key Laboratory for Quality Regulation of Tropical Horticultural Plants of Hainan Province, Sanya Nanfan Research Institute, College of Horticulture, Hainan University, Haikou, 570228, China
| | - Zhuoying Ding
- National Key Laboratory for Tropical Crops Breeding, Sanya, 572024, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Hainan Key Laboratory of Sustainable Utilization of Tropical Bioresources, Key Laboratory for Quality Regulation of Tropical Horticultural Plants of Hainan Province, Sanya Nanfan Research Institute, College of Horticulture, Hainan University, Haikou, 570228, China
| | - Jingyi Sun
- National Key Laboratory for Tropical Crops Breeding, Sanya, 572024, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
- Hainan Key Laboratory of Sustainable Utilization of Tropical Bioresources, Key Laboratory for Quality Regulation of Tropical Horticultural Plants of Hainan Province, Sanya Nanfan Research Institute, College of Horticulture, Hainan University, Haikou, 570228, China
| | - Xuefei Jiang
- Hainan Key Laboratory of Sustainable Utilization of Tropical Bioresources, Key Laboratory for Quality Regulation of Tropical Horticultural Plants of Hainan Province, Sanya Nanfan Research Institute, College of Horticulture, Hainan University, Haikou, 570228, China
| | - Hanqing Cong
- National Key Laboratory for Tropical Crops Breeding, Sanya, 572024, China
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Huapeng Sun
- National Key Laboratory for Tropical Crops Breeding, Sanya, 572024, China.
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
| | - Fei Qiao
- National Key Laboratory for Tropical Crops Breeding, Sanya, 572024, China.
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Ministry of Agriculture, Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
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15
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Dong P, Fan Y, Huo YX, Sun L, Guo S. Pathway-Adapted Biosensor for High-Throughput Screening of O-Methyltransferase and its Application in Vanillin Synthesis. ACS Synth Biol 2024; 13:2873-2886. [PMID: 39208264 DOI: 10.1021/acssynbio.4c00287] [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] [Indexed: 09/04/2024]
Abstract
Vanillin is a widely used flavoring compound in the food, pharmaceutical, and cosmetics area. However, the biosynthesis of vanillin from low-cost shikimic acid is significantly hindered by the low activity of the rate-limiting enzyme, caffeate O-methyltransferase (COMT). To screen COMT variants with improved conversion rates, we designed a biosensing system that is adaptable to the COMT-mediated vanillin synthetic pathway. Through the evolution of aldehyde transcriptional factor YqhC, we obtained a dual-responsive variant, MuYqhC, which positively responds to the product and negatively responds to the substrate, with no response to intermediates. Using the MuYqhC-based vanillin biosensor, we successfully identified a COMT variant, Mu176, that displayed a 7-fold increase in the conversion rate compared to the wild-type COMT. This variant produced 2.38 mM vanillin from 3 mM protocatechuic acid, achieving a conversion rate of 79.33%. The enhanced activity of Mu176 was attributed to an enlarged binding pocket and strengthened substrate interaction. Applying Mu176 to Bacillus subtilis increased the level of vanillin production from shikimic acid by 2.39-fold. Further optimization of the production chassis, increasing the S-adenosylmethionine supply and the precursor concentration, elevated the vanillin titer to 1 mM, marking the highest level of vanillin production from shikimic acid in Bacillus. Our work highlights the significance of the MuYqhC-based biosensing system and the Mu176 variant in vanillin production.
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Affiliation(s)
- Pengyu Dong
- Key Laboratory of Molecular Medicine and Biotherapy, Aerospace Center Hospital, School of Life Science, Beijing Institute of Technology, 100081 Beijing, China
| | - Yunjuan Fan
- Key Laboratory of Molecular Medicine and Biotherapy, Aerospace Center Hospital, School of Life Science, Beijing Institute of Technology, 100081 Beijing, China
| | - Yi-Xin Huo
- Key Laboratory of Molecular Medicine and Biotherapy, Aerospace Center Hospital, School of Life Science, Beijing Institute of Technology, 100081 Beijing, China
- Tangshan Research Institute, Beijing Institute of Technology, 063611 Tangshan, Hebei, China
| | - Lichao Sun
- Key Laboratory of Molecular Medicine and Biotherapy, Aerospace Center Hospital, School of Life Science, Beijing Institute of Technology, 100081 Beijing, China
- Tangshan Research Institute, Beijing Institute of Technology, 063611 Tangshan, Hebei, China
| | - Shuyuan Guo
- Key Laboratory of Molecular Medicine and Biotherapy, Aerospace Center Hospital, School of Life Science, Beijing Institute of Technology, 100081 Beijing, China
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16
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Kim M, Kim M, Ryu S. Identification of amino acid residue in the Cronobacter sakazakii LamB responsible for the receptor compatibility of polyvalent coliphage CSP1. J Virol 2024:e0067624. [PMID: 39248490 DOI: 10.1128/jvi.00676-24] [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: 04/24/2024] [Accepted: 08/20/2024] [Indexed: 09/10/2024] Open
Abstract
Polyvalent bacteriophages show the feature of infecting bacteria across multiple species or even orders. Infectivity of a polyvalent phage is variable depending on the host bacteria, which can disclose differential inhibition of bacteria by the phage. In this study, a polyvalent phage CSP1 infecting both Cronobacter sakazakii ATCC 29544 and Escherichia coli MG1655 was isolated. CSP1 showed higher growth inhibition and adsorption rate in E. coli compared to C. sakazakii, and identification of host receptors revealed that CSP1 uses E. coli LamB (LamBE) as a receptor but that CSP1 requires both C. sakazakii LamB (LamBC) and lipopolysaccharide (LPS) core for C. sakazakii infection. The substitution of LamBC with LamBE in C. sakazakii enhanced CSP1 susceptibility and made C. sakazakii LPS core no more essential for CSP1 infection. Comparative analysis of LamBC and LamBE disclosed that the extra proline at amino acid residue 284 in LamBC made a structural distinction by forming a longer loop and that the deletion of 284P in LamBC aligns its structure and makes LamBC function like LamBE, enhancing CSP1 adsorption and growth inhibition of C. sakazakii. These results suggest that 284P of LamBC plays a critical role in determining the CSP1-host bacteria interaction. These findings could provide insight into the elucidation of molecular determinants in the interaction between polyvalent phages and host bacteria and help us to understand the phage infectivity for efficient phage application. IMPORTANCE Polyvalent phages have the advantage of a broader host range, overcoming the limitation of the narrow host range of phages. However, the limited molecular biological understanding on the host bacteria-polyvalent phage interaction hinders its effective application. Here, we revealed that the ability of the polyvalent phage CSP1 to infect Cronobacter sakazakii ATCC 29544 is disturbed by a single proline residue in the LamB protein and that lipopolysaccharide is used as an auxiliary receptor for CSP1 to support the adsorption and the subsequent infection of C. sakazakii. These results can contribute to a better understanding of the interaction between polyvalent phages and host bacteria for efficient phage application.
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Affiliation(s)
- Moosung Kim
- Department of Food and Animal Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Minsik Kim
- Department of Food and Nutrition, College of Human Ecology, Yonsei University, Seoul, Republic of Korea
| | - Sangryeol Ryu
- Department of Food and Animal Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
- Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
- Center for Food and Bioconvergence, Seoul National University, Seoul, Republic of Korea
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17
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Li S, He X, Zhang X, Kong KW, Xie J, Sun J, Wang Z. Integration of volatile and non-volatile metabolite profile, and in vitro digestion reveals the differences between different preparation methods on physico-chemical and biological properties of Gastrodia elata. Food Chem 2024; 463:141177. [PMID: 39260170 DOI: 10.1016/j.foodchem.2024.141177] [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: 02/21/2024] [Revised: 07/08/2024] [Accepted: 09/05/2024] [Indexed: 09/13/2024]
Abstract
Gastrodia elata Blume (G. elata) is a traditional medicinal and edible plant whose quality is significantly influenced by post-harvest processing. To obtain an optimal post-harvest processing method for G. elata, this study employed sensory evaluation, scanning electron microscopy (SEM), gas chromatography-ion mobility spectrometry (GC-IMS), and non-targeted metabolomics, in conjunction with an in vitro digestion model, to assess the impact of different processing and drying methods on the quality of G. elata. The findings showed that the steam treatment followed by heat pump drying resulted in the highest levels of total phenols, total flavonoids, and polysaccharides in G. elata, and caused more pronounced damage to its microstructure. This treatment also maintained the highest antioxidant activities and optimal acetylcholinesterase (AChE) inhibition capacity throughout in vitro digestion, meanwhile, effectively eliminating the unpleasant odor and achieving the highest sensory scores. Furthermore, non-targeted metabolomic analysis revealed noteworthy alterations in the metabolite profile of G. elata, mainly related to purine metabolism and the biosynthesis of amino acids pathways. This study provides valuable insights into the post-harvest processing of G. elata.
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Affiliation(s)
- Shi Li
- Yunnan Provincial Key Laboratory for Conservation and Utilization of In-forest Resource, Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, College of Biological Science and Food Engineering, Southwest Forestry University, Kunming 650224, China
| | - Xiahong He
- Yunnan Provincial Key Laboratory for Conservation and Utilization of In-forest Resource, Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, College of Biological Science and Food Engineering, Southwest Forestry University, Kunming 650224, China.
| | - Xuechun Zhang
- Yunnan Provincial Key Laboratory for Conservation and Utilization of In-forest Resource, Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, College of Biological Science and Food Engineering, Southwest Forestry University, Kunming 650224, China
| | - Kin Weng Kong
- Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Jianhua Xie
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Jian Sun
- Guangxi Key Laboratory of Fruits and Vegetables Storage-Processing Technology, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
| | - Zhenxing Wang
- Yunnan Provincial Key Laboratory for Conservation and Utilization of In-forest Resource, Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, College of Biological Science and Food Engineering, Southwest Forestry University, Kunming 650224, China.
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18
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Desika J, Yogendra K, Hepziba SJ, Patne N, Vivek BS, Ravikesavan R, Nair SK, Jaba J, Razak TA, Srinivasan S, Shettigar N. Exploring Metabolomics to Innovate Management Approaches for Fall Armyworm ( Spodoptera frugiperda [J.E. Smith]) Infestation in Maize ( Zea mays L.). PLANTS (BASEL, SWITZERLAND) 2024; 13:2451. [PMID: 39273935 PMCID: PMC11397220 DOI: 10.3390/plants13172451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Revised: 08/07/2024] [Accepted: 08/14/2024] [Indexed: 09/15/2024]
Abstract
The Fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith), is a highly destructive lepidopteran pest known for its extensive feeding on maize (Zea mays L.) and other crops, resulting in a substantial reduction in crop yields. Understanding the metabolic response of maize to FAW infestation is essential for effective pest management and crop protection. Metabolomics, a powerful analytical tool, provides insights into the dynamic changes in maize's metabolic profile in response to FAW infestation. This review synthesizes recent advancements in metabolomics research focused on elucidating maize's metabolic responses to FAW and other lepidopteran pests. It discusses the methodologies used in metabolomics studies and highlights significant findings related to the identification of specific metabolites involved in FAW defense mechanisms. Additionally, it explores the roles of various metabolites, including phytohormones, secondary metabolites, and signaling molecules, in mediating plant-FAW interactions. The review also examines potential applications of metabolomics data in developing innovative strategies for integrated pest management and breeding maize cultivars resistant to FAW by identifying key metabolites and associated metabolic pathways involved in plant-FAW interactions. To ensure global food security and maximize the potential of using metabolomics in enhancing maize resistance to FAW infestation, further research integrating metabolomics with other omics techniques and field studies is necessary.
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Affiliation(s)
- Jayasaravanan Desika
- V.O.C. Agricultural College and Research Institute, Tamil Nadu Agricultural University (TNAU), Killikulam 628252, India
- International Maize and Wheat Improvement Center (CIMMYT), Hyderabad 502324, India
| | - Kalenahalli Yogendra
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad 502324, India
| | - Sundararajan Juliet Hepziba
- V.O.C. Agricultural College and Research Institute, Tamil Nadu Agricultural University (TNAU), Killikulam 628252, India
| | - Nagesh Patne
- International Maize and Wheat Improvement Center (CIMMYT), Hyderabad 502324, India
| | | | - Rajasekaran Ravikesavan
- Centre for Plant Breeding & Genetics, Tamil Nadu Agricultural University (TNAU), Coimbatore 641003, India
| | - Sudha Krishnan Nair
- International Maize and Wheat Improvement Center (CIMMYT), Hyderabad 502324, India
| | - Jagdish Jaba
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Hyderabad 502324, India
| | - Thurapmohideen Abdul Razak
- V.O.C. Agricultural College and Research Institute, Tamil Nadu Agricultural University (TNAU), Killikulam 628252, India
| | - Subbiah Srinivasan
- V.O.C. Agricultural College and Research Institute, Tamil Nadu Agricultural University (TNAU), Killikulam 628252, India
| | - Nivedita Shettigar
- International Maize and Wheat Improvement Center (CIMMYT), Hyderabad 502324, India
- Department of Genetics and Plant Breeding, Professor Jayashankar Telangana State Agricultural University (PJTSAU), Hyderabad 500030, India
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19
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Fallon MA, Tadfie H, Watson AP, Dyke MM, Flores C, Cook N, Fei Z, Holland CK. Molecular basis of one-step methyl anthranilate biosynthesis in grapes, sweet orange, and maize. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:2363-2374. [PMID: 38976445 DOI: 10.1111/tpj.16922] [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: 03/11/2024] [Accepted: 06/26/2024] [Indexed: 07/10/2024]
Abstract
Plants synthesize an array of volatile compounds, many of which serve ecological roles in attracting pollinators, deterring herbivores, and communicating with their surroundings. Methyl anthranilate (MeAA) is an anti-herbivory defensive volatile responsible for grape aroma that is emitted by several agriculturally relevant plants, including citrus, grapes, and maize. Unlike maize, which uses a one-step anthranilate methyltransferase (AAMT), grapes have been thought to use a two-step pathway for MeAA biosynthesis. By mining available transcriptomics data, we identified two AAMTs in Vitis vinifera (wine grape), as well as one ortholog in "Concord" grape. Many angiosperms methylate the plant hormone salicylic acid (SA) to produce methyl salicylate, which acts as a plant-to-plant communication molecule. Because the Citrus sinensis (sweet orange) SA methyltransferase can methylate both anthranilate (AA) and SA, we used this enzyme to examine the molecular basis of AA activity by introducing rational mutations, which identified several active site residues that increase activity with AA. Reversing this approach, we introduced mutations that imparted activity with SA in the maize AAMT, which uncovered different active site residues from those in the citrus enzyme. Sequence and phylogenetic analysis revealed that one of the Vitis AAMTs shares an ancestor with jasmonic acid methyltransferases, similar to the AAMT from strawberry (Frageria sp.). Collectively, these data demonstrate the molecular mechanisms underpinning AA activity across methyltransferases and identify one-step enzymes by which grapes synthesize MeAA.
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Affiliation(s)
- Michael A Fallon
- Department of Biology, Williams College, Williamstown, Massachusetts, 01267, USA
| | - Hisham Tadfie
- Department of Biology, Williams College, Williamstown, Massachusetts, 01267, USA
| | - Aracely P Watson
- Department of Biology, Williams College, Williamstown, Massachusetts, 01267, USA
| | - Madeline M Dyke
- Department of Biology, Williams College, Williamstown, Massachusetts, 01267, USA
| | - Christopher Flores
- Department of Biology, Williams College, Williamstown, Massachusetts, 01267, USA
| | - Nathan Cook
- Department of Chemistry, Williams College, Williamstown, Massachusetts, 01267, USA
| | - Zhangjun Fei
- Boyce Thompson Institute, Ithaca, New York, 14850, USA
| | - Cynthia K Holland
- Department of Biology, Williams College, Williamstown, Massachusetts, 01267, USA
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20
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Akyuz Turumtay E, Turumtay H, Tian Y, Lin CY, Chai YN, Louie KB, Chen Y, Lipzen A, Harwood T, Satish Kumar K, Bowen BP, Wang Q, Mansfield SD, Blow MJ, Petzold CJ, Northen TR, Mortimer JC, Scheller HV, Eudes A. Expression of dehydroshikimate dehydratase in poplar induces transcriptional and metabolic changes in the phenylpropanoid pathway. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:4960-4977. [PMID: 38809816 PMCID: PMC11349870 DOI: 10.1093/jxb/erae251] [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: 03/05/2024] [Accepted: 05/28/2024] [Indexed: 05/31/2024]
Abstract
Modification of lignin in feedstocks via genetic engineering aims to reduce biomass recalcitrance to facilitate efficient conversion processes. These improvements can be achieved by expressing exogenous enzymes that interfere with native biosynthetic pathways responsible for the production of the lignin precursors. In planta expression of a bacterial 3-dehydroshikimate dehydratase in poplar trees reduced lignin content and altered the monomer composition, which enabled higher yields of sugars after cell wall polysaccharide hydrolysis. Understanding how plants respond to such genetic modifications at the transcriptional and metabolic levels is needed to facilitate further improvement and field deployment. In this work, we acquired fundamental knowledge on lignin-modified poplar expressing 3-dehydroshikimate dehydratase using RNA-seq and metabolomics. The data clearly demonstrate that changes in gene expression and metabolite abundance can occur in a strict spatiotemporal fashion, revealing tissue-specific responses in the xylem, phloem, or periderm. In the poplar line that exhibited the strongest reduction in lignin, we found that 3% of the transcripts had altered expression levels and ~19% of the detected metabolites had differential abundance in the xylem from older stems. The changes affected predominantly the shikimate and phenylpropanoid pathways as well as secondary cell wall metabolism, and resulted in significant accumulation of hydroxybenzoates derived from protocatechuate and salicylate.
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Affiliation(s)
- Emine Akyuz Turumtay
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Recep Tayyip Erdogan University, Department of Chemistry, 53100, Rize, Turkiye
| | - Halbay Turumtay
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Karadeniz Technical University, Department of Energy System Engineering, 61830, Trabzon, Turkiye
| | - Yang Tian
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Chien-Yuan Lin
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Yen Ning Chai
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Katherine B Louie
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Yan Chen
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Anna Lipzen
- Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Thomas Harwood
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Kavitha Satish Kumar
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Benjamin P Bowen
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Qian Wang
- Department of Wood Science, University of British Columbia, Vancouver, BC, Canada
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| | - Shawn D Mansfield
- Department of Wood Science, University of British Columbia, Vancouver, BC, Canada
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
- DOE Great Lakes Bioenergy Research Center, Wisconsin Energy Institute, Madison, WI 53726, USA
| | - Matthew J Blow
- Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Christopher J Petzold
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Trent R Northen
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Jenny C Mortimer
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide, Glen Osmond, SA, Australia
| | - Henrik V Scheller
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Plant and Microbial Biology, University of California, Berkeley, Berkeley, CA, USA
| | - Aymerick Eudes
- Feedstocks Division, Joint BioEnergy Institute, Emeryville, CA, USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
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21
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Wang D, He J, Chen Y, Liu B, Wu Z, Pan X, Niu X. Harnessing in vivo synthesis of bioactive multiarylmethanes in Escherichia coli via oxygen-mediated free radical reaction induced by simple phenols. Microb Cell Fact 2024; 23:219. [PMID: 39103877 DOI: 10.1186/s12934-024-02494-y] [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: 05/13/2024] [Accepted: 07/29/2024] [Indexed: 08/07/2024] Open
Abstract
BACKGROUND Xanthenes and multi-aryl carbon core containing compounds represent different types of complex and condensed architectures that have impressive wide range of pharmacological, industrial and synthetic applications. Moreover, indoles as building blocks were only found in naturally occurring metabolites with di-aryl carbon cores and in chemically synthesized tri-aryl carbon core containing compounds. Up to date, rare xanthenes with indole bearing multicaryl carbon core have been reported in natural or synthetic products. The underlying mechanism of fluorescein-like arthrocolins with tetra-arylmethyl core were synthesized in an engineered Escherichia coli fed with toluquinol remained unclear. RESULTS In this study, the Keio collection of single gene knockout strains of 3901 mutants of E. coli BW25113, together with 14 distinct E. coli strains, was applied to explore the origins of endogenous building blocks and the biogenesis for arthrocolin assemblage. Deficiency in bacterial respiratory and aromatic compound degradation genes ubiX, cydB, sucA and ssuE inhibited the mutant growth fed with toluquinol. Metabolomics of the cultures of 3897 mutants revealed that only disruption of tnaA involving in transforming tryptophan to indole, resulted in absence of arthrocolins. Further media optimization, thermal cell killing and cell free analysis indicated that a non-enzyme reaction was involved in the arthrocolin biosynthesis in E. coli. Evaluation of redox potentials and free radicals suggested that an oxygen-mediated free radical reaction was responsible for arthrocolins formation in E. coli. Regulation of oxygen combined with distinct phenol derivatives as inducer, 31 arylmethyl core containing metabolites including 13 new and 8 biological active, were isolated and characterized. Among them, novel arthrocolins with p-hydroxylbenzene ring from tyrosine were achieved through large scale of aerobic fermentation and elucidated x-ray diffraction analysis. Moreover, most of the known compounds in this study were for the first time synthesized in a microbe instead of chemical synthesis. Through feeding the rat with toluquinol after colonizing the intestines of rat with E. coli, arthrocolins also appeared in the rat blood. CONCLUSION Our findings provide a mechanistic insight into in vivo synthesis of complex and condensed arthrocolins induced by simple phenols and exploits a quinol based method to generate endogenous aromatic building blocks, as well as a methylidene unit, for the bacteria-facilitated synthesis of multiarylmethanes.
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Affiliation(s)
- Donglou Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources & Key Laboratory for Microbial Resources of the Ministry of Education, School of Life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Jiangbo He
- Kunming Key Laboratory of Respiratory Disease, Kunming University, Kunming, 650214, P. R. China
| | - Yonghong Chen
- State Key Laboratory for Conservation and Utilization of Bio-Resources & Key Laboratory for Microbial Resources of the Ministry of Education, School of Life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Boran Liu
- State Key Laboratory for Conservation and Utilization of Bio-Resources & Key Laboratory for Microbial Resources of the Ministry of Education, School of Life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Zhuang Wu
- State Key Laboratory for Conservation and Utilization of Bio-Resources & Key Laboratory for Microbial Resources of the Ministry of Education, School of Life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Xuerong Pan
- State Key Laboratory for Conservation and Utilization of Bio-Resources & Key Laboratory for Microbial Resources of the Ministry of Education, School of Life Sciences, Yunnan University, Kunming, 650091, P. R. China
| | - Xuemei Niu
- State Key Laboratory for Conservation and Utilization of Bio-Resources & Key Laboratory for Microbial Resources of the Ministry of Education, School of Life Sciences, Yunnan University, Kunming, 650091, P. R. China.
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22
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Dissanayake BM, Staudinger C, Ranathunge K, Munns R, Rupasinghe TW, Taylor NL, Millar AH. Metabolic adaptations leading to an enhanced lignification in wheat roots under salinity stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:1800-1815. [PMID: 38923138 DOI: 10.1111/tpj.16885] [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: 12/14/2023] [Revised: 05/03/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024]
Abstract
Analysis of salinity tolerance processes in wheat has focused on salt exclusion from shoots while root phenotypes have received limited attention. Here, we consider the varying phenotypic response of four bread wheat varieties that differ in their type and degree of salt tolerance and assess their molecular responses to salinity and changes in root cell wall lignification. These varieties were Westonia introgressed with Nax1 and Nax2 root sodium transporters (HKT1;4-A and HKT1;5-A) that reduce Na+ accumulation in leaves, as well as the 'tissue tolerant' Portuguese landrace Mocho de Espiga Branca that has a mutation in the homologous gene HKT1;5-D and has high Na+ concentration in leaves. These three varieties were compared with the relatively more salt-sensitive cultivar Gladius. Through the use of root histochemical analysis, ion concentrations, as well as differential proteomics and targeted metabolomics, we provide an integrated view of the wheat root response to salinity. We show different metabolic re-arrangements in energy conversion, primary metabolic machinery and phenylpropanoid pathway leading to monolignol production in a genotype and genotype by treatment-dependent manner that alters the extent and localisation of root lignification which correlated with an improved capacity of wheat roots to cope better under salinity stress.
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Affiliation(s)
- Bhagya M Dissanayake
- School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, 6009, Australia
| | - Christiana Staudinger
- Institute of Agronomy, University of Natural Resources and Life Sciences, BOKU, Vienna, Austria
- Institute of Soil Research, Konrad-Lorenz-Strasse 24, Tulln, 3430, Austria
| | - Kosala Ranathunge
- School of Biological Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, 6009, Australia
| | - Rana Munns
- School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, 6009, Australia
| | | | - Nicolas L Taylor
- School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, 6009, Australia
- Institute of Agriculture, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, 6009, Australia
- Australian Plant Phenomics Network, The University Of Western Australia, 35 Stirling Highway, Crawley, Perth, 6009, Australia
| | - A Harvey Millar
- School of Molecular Sciences, The University of Western Australia, 35 Stirling Highway, Crawley, Perth, 6009, Australia
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23
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Xie C, Tian Q, Qiu H, Wang R, Wang L, Yue Y, Yang X. Methylation Modification in Ornamental Plants: Impact on Floral Aroma and Color. Int J Mol Sci 2024; 25:8267. [PMID: 39125834 PMCID: PMC11311783 DOI: 10.3390/ijms25158267] [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: 06/12/2024] [Revised: 07/24/2024] [Accepted: 07/28/2024] [Indexed: 08/12/2024] Open
Abstract
Methylation represents a crucial class of modification that orchestrates a spectrum of regulatory roles in plants, impacting ornamental characteristics, growth, development, and responses to abiotic stress. The establishment and maintenance of methylation involve the coordinated actions of multiple regulatory factors. Methyltransferases play a pivotal role by specifically recognizing and methylating targeted sites, which induces alterations in chromatin structure and gene expression, subsequently influencing the release of volatile aromatic substances and the accumulation of pigments in plant petals. In this paper, we review the regulatory mechanisms of methylation modification reactions and their effects on the changes in aromatic substances and pigments in plant petals. We also explore the potential of methylation modifications to unravel the regulatory mechanisms underlying aroma and color in plant petals. This aims to further elucidate the synthesis, metabolism, and regulatory mechanisms of various methylation modifications related to the aroma and color substances in plant petals, thereby providing a theoretical reference for improving the aroma and color of plant petals.
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Affiliation(s)
- Chenchen Xie
- Key Laboratory of Landscape Architecture, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; (C.X.); (Q.T.); (H.Q.); (R.W.); (L.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Qingyin Tian
- Key Laboratory of Landscape Architecture, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; (C.X.); (Q.T.); (H.Q.); (R.W.); (L.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Hanruo Qiu
- Key Laboratory of Landscape Architecture, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; (C.X.); (Q.T.); (H.Q.); (R.W.); (L.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Rui Wang
- Key Laboratory of Landscape Architecture, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; (C.X.); (Q.T.); (H.Q.); (R.W.); (L.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Lianggui Wang
- Key Laboratory of Landscape Architecture, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; (C.X.); (Q.T.); (H.Q.); (R.W.); (L.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Yuanzheng Yue
- Key Laboratory of Landscape Architecture, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; (C.X.); (Q.T.); (H.Q.); (R.W.); (L.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Xiulian Yang
- Key Laboratory of Landscape Architecture, College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China; (C.X.); (Q.T.); (H.Q.); (R.W.); (L.W.)
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
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24
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Niu D, Xu L, Lin K. Multitrophic and Multilevel Interactions Mediated by Volatile Organic Compounds. INSECTS 2024; 15:572. [PMID: 39194777 DOI: 10.3390/insects15080572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 07/16/2024] [Accepted: 07/26/2024] [Indexed: 08/29/2024]
Abstract
Plants communicate with insects and other organisms through the release of volatile organic compounds (VOCs). Using Boolean operators, we retrieved 1093 articles from the Web of Science and Scopus databases, selecting 406 for detailed analysis, with approximately 50% focusing on herbivore-induced plant volatiles (HIPVs). This review examines the roles of VOCs in direct and indirect plant defense mechanisms and their influence on complex communication networks within ecosystems. Our research reveals significant functions of VOCs in four principal areas: activating insect antennae, attracting adult insects, attracting female insects, and attracting natural enemies. Terpenoids like α-pinene and β-myrcene significantly alter pest behavior by attracting natural enemies. β-ocimene and β-caryophyllene are crucial in regulating aboveground and belowground interactions. We emphasize the potential applications of VOCs in agriculture for developing novel pest control strategies and enhancing crop resilience. Additionally, we identify research gaps and propose new directions, stressing the importance of comparative studies across ecosystems and long-term observational research to better understand VOCs dynamics. In conclusion, we provide insights into the multifunctionality of VOCs in natural ecosystems, their potential for future research and applications, and their role in advancing sustainable agricultural and ecological practices, contributing to a deeper understanding of their mechanisms and ecological functions.
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Affiliation(s)
- Dongsheng Niu
- Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot 010000, China
- Inner Mongolia-CABI Joint Laboratory for Grassland Protection and Sustainable Utilization, Hohhot 010000, China
- Key Laboratory of Biohazard Monitoring, Green Prevention and Control for Artificial Grassland, Ministry of Agriculture and Rural Affairs, Hohhot 010000, China
- Inner Mongolia Key Laboratory of Grassland Protection Ecology, Hohhot 010000, China
| | - Linbo Xu
- Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot 010000, China
- Inner Mongolia-CABI Joint Laboratory for Grassland Protection and Sustainable Utilization, Hohhot 010000, China
- Key Laboratory of Biohazard Monitoring, Green Prevention and Control for Artificial Grassland, Ministry of Agriculture and Rural Affairs, Hohhot 010000, China
- Inner Mongolia Key Laboratory of Grassland Protection Ecology, Hohhot 010000, China
| | - Kejian Lin
- Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot 010000, China
- Inner Mongolia-CABI Joint Laboratory for Grassland Protection and Sustainable Utilization, Hohhot 010000, China
- Key Laboratory of Biohazard Monitoring, Green Prevention and Control for Artificial Grassland, Ministry of Agriculture and Rural Affairs, Hohhot 010000, China
- Inner Mongolia Key Laboratory of Grassland Protection Ecology, Hohhot 010000, China
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25
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Gomez-Cano F, Rodriguez J, Zhou P, Chu YH, Magnusson E, Gomez-Cano L, Krishnan A, Springer NM, de Leon N, Grotewold E. Prioritizing Maize Metabolic Gene Regulators through Multi-Omic Network Integration. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.26.582075. [PMID: 38464086 PMCID: PMC10925184 DOI: 10.1101/2024.02.26.582075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Elucidating gene regulatory networks is a major area of study within plant systems biology. Phenotypic traits are intricately linked to specific gene expression profiles. These expression patterns arise primarily from regulatory connections between sets of transcription factors (TFs) and their target genes. Here, we integrated 46 co-expression networks, 283 protein-DNA interaction (PDI) assays, and 16 million SNPs used to identify expression quantitative trait loci (eQTL) to construct TF-target networks. In total, we analyzed ∼4.6M interactions to generate four distinct types of TF-target networks: co-expression, PDI, trans -eQTL, and cis -eQTL combined with PDIs. To functionally annotate TFs based on their target genes, we implemented three different network integration strategies. We evaluated the effectiveness of each strategy through TF loss-of function mutant inspection and random network analyses. The multi-network integration allowed us to identify transcriptional regulators of several biological processes. Using the topological properties of the fully integrated network, we identified potential functionally redundant TF paralogs. Our findings retrieved functions previously documented for numerous TFs and revealed novel functions that are crucial for informing the design of future experiments. The approach here-described lays the foundation for the integration of multi-omic datasets in maize and other plant systems. GRAPHICAL ABSTRACT
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26
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Tang Q, Huang Y, Shen Z, Sun L, Gu Y, He H, Chen Y, Zhou J, Zhang L, Zhao C, Ma S, Li Y, Wu J, Zhao Q. 6-Phosphogluconate dehydrogenase 2 bridges the OPP and shikimate pathways to enhance aromatic amino acid production in plants. SCIENCE CHINA. LIFE SCIENCES 2024:10.1007/s11427-024-2567-4. [PMID: 39060614 DOI: 10.1007/s11427-024-2567-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 03/12/2024] [Indexed: 07/28/2024]
Abstract
The oxidative pentose phosphate (OPP) pathway provides metabolic intermediates for the shikimate pathway and directs carbon flow to the biosynthesis of aromatic amino acids (AAAs), which serve as basic protein building blocks and precursors of numerous metabolites essential for plant growth. However, genetic evidence linking the two pathways is largely unclear. In this study, we identified 6-phosphogluconate dehydrogenase 2 (PGD2), the rate-limiting enzyme of the cytosolic OPP pathway, through suppressor screening of arogenate dehydrogenase 2 (adh2) in Arabidopsis. Our data indicated that a single amino acid substitution at position 63 (glutamic acid to lysine) of PGD2 enhanced its enzyme activity by facilitating the dissociation of products from the active site of PGD2, thus increasing the accumulation of AAAs and partially restoring the defective phenotype of adh2. Phylogenetic analysis indicated that the point mutation occurred in a well-conserved amino acid residue. Plants with different amino acids at this conserved site of PGDs confer diverse catalytic activities, thus exhibiting distinct AAAs producing capability. These findings uncover the genetic link between the OPP pathway and AAAs biosynthesis through PGD2. The gain-of-function point mutation of PGD2 identified here could be considered as a potential engineering target to alter the metabolic flux for the production of AAAs and downstream compounds.
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Affiliation(s)
- Qian Tang
- Shenzhen Key Laboratory of Synthetic Genomics, Guangdong Provincial Key Laboratory of Synthetic Genomics, Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Yuxin Huang
- Shenzhen Key Laboratory of Synthetic Genomics, Guangdong Provincial Key Laboratory of Synthetic Genomics, Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhuanglin Shen
- CAS Key Laboratory for Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Linhui Sun
- Shenzhen Key Laboratory of Synthetic Genomics, Guangdong Provincial Key Laboratory of Synthetic Genomics, Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yang Gu
- CAS Key Laboratory for Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Huiqing He
- Shenzhen Key Laboratory of Synthetic Genomics, Guangdong Provincial Key Laboratory of Synthetic Genomics, Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Key Laboratory of Agricultural Microbiology of Heilongjiang Province, Northeast Agricultural University, Harbin, 150030, China
| | - Yanhong Chen
- Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Jiahai Zhou
- CAS Key Laboratory for Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Limin Zhang
- State Key Laboratory of Plant Cell and Chromosome Engineering, CAS Centre for Excellence in Molecular Plant Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Cuihuan Zhao
- Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Shisong Ma
- MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, School of Life Sciences, University of Science and Technology of China, Innovation Academy for Seed Design, Chinese Academy of Sciences, Hefei, 230027, China
| | - Yunhai Li
- State Key Laboratory of Plant Cell and Chromosome Engineering, CAS Centre for Excellence in Molecular Plant Biology, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jie Wu
- Shenzhen Key Laboratory of Synthetic Genomics, Guangdong Provincial Key Laboratory of Synthetic Genomics, Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
| | - Qiao Zhao
- Shenzhen Key Laboratory of Synthetic Genomics, Guangdong Provincial Key Laboratory of Synthetic Genomics, Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
- Center for Plant Biology, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
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27
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Aghaali Z, Naghavi MR. Developing benzylisoquinoline alkaloid-enriched opium poppy via CRISPR-directed genome editing: A review. BMC PLANT BIOLOGY 2024; 24:700. [PMID: 39048937 PMCID: PMC11267691 DOI: 10.1186/s12870-024-05412-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Accepted: 07/11/2024] [Indexed: 07/27/2024]
Abstract
Among plant-derived secondary metabolites are benzylisoquinoline alkaloids (BIAs) that play a vital role in medicine. The most conspicuous BIAs frequently found in opium poppy are morphine, codeine, thebaine, papaverine, sanguinarine, and noscapine. BIAs have provided abundant clinically useful drugs used in the treatment of various diseases and ailments With an increasing demand for these herbal remedies, genetic improvement of poppy plants appears to be essential to live up to the expectations of the pharmaceutical industry. With the advent of clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated9 (Cas9), the field of metabolic engineering has undergone a paradigm shift in its approach due to its appealing attributes, such as the transgene-free editing capability, precision, selectivity, robustness, and versatility. The potentiality of the CRISPR system for manipulating metabolic pathways in opium poppy was demonstrated, but further investigations regarding the use of CRISPR in BIA pathway engineering should be undertaken to develop opium poppy into a bioreactor synthesizing BIAs at the industrial-scale levels. In this regard, the recruitment of RNA-guided genome editing for knocking out miRNAs, flower responsible genes, genes involved in competitive pathways, and base editing are described. The approaches presented here have never been suggested or applied in opium poppy so far.
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Affiliation(s)
- Zahra Aghaali
- Department of Genetics and Plant Breeding, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Reza Naghavi
- Division of Plant Biotechnology, Department of Agronomy and Plant Breeding, College of Agricultural and Natural Resources, University of Tehran, Karaj, Iran.
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28
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Mahmoud AM, Reyad AM, Khalaf MH, Sheteiwy MS, Dawood MFA, El-Sawah AM, Shaban Ahmed E, Malik A, Al-Qahtani WH, Abdel-Maksoud MA, Mousa NHS, Alyafei M, AbdElgawad H. Investigating the Endophyte Actinomycetota sp. JW0824 Strain as a Potential Bioinoculant to Enhance the Yield, Nutritive Value, and Chemical Composition of Different Cultivars of Anise ( Pimpinella anisum L.) Seeds. BIOLOGY 2024; 13:553. [PMID: 39194491 DOI: 10.3390/biology13080553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/16/2024] [Accepted: 07/16/2024] [Indexed: 08/29/2024]
Abstract
Anise (Pimpinella anisum L.) seeds have various nutritional and therapeutic benefits and are thus considered a valuable addition to animal and human health. Hence, in this study, we aimed to induce the nutritive and biological value of anise seeds. To this end, the potential biofortification effect of the endophytic Actinomycetota sp. JW0824 strain, isolated during the fall of 2023 from the medicinal plant Achyranthes aspera, exhibiting natural distribution in the Jazan region of Saudi Arabia, was investigated in four varieties of anise seeds from Egypt, Tunisia, Syria, and Morocco. Results revealed significant increments (p < 0.05) in the seed dry weight percentage (DW%) and oil yields. In line with increased biomass accumulation, the metabolism of the primary and secondary metabolites was increased. There were differential increases in proteins, sugars, flavonoids, alkaloids, phenols, vitamins (e.g., β-carotene, ascorbic acid), and essential oil components (e.g., phenylpropanoids and monoterpenes), along with their precursor phenylalanine. Consistently, the activity of L-phenylalanine aminolyase (PAL) was increased in the Egyptian and Tunisian varieties at 83.88% and 77.19%, respectively, while 3-deoxy-D-arabino-heptulosonate-7-phosphate synthase (DAHPS) activity increased in all varieties, with a significant 179.31% rise in the Egyptian variety. These findings highlight the beneficial effects of Actinomycetota sp. JW0824 as a bioinoculant for anise seeds, suggesting its potential application in agricultural practices to improve seed yield and quality. Further field trials are recommended to assess the commercial viability of this endophyte for enhancing anise seed production and potentially benefiting other plant species.
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Affiliation(s)
- Ahmed M Mahmoud
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Ahmed M Reyad
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Maha H Khalaf
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Mohamed S Sheteiwy
- Department of Integrative Agriculture, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Abu Dhabi P.O. Box 15551, United Arab Emirates
- Department of Agronomy, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
| | - Mona F A Dawood
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Ahmed M El-Sawah
- Department of Agricultural Microbiology, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt
| | - Enas Shaban Ahmed
- Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni-Suef 62511, Egypt
| | - Abdul Malik
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P.O. Box 270677, Riyadh 11352, Saudi Arabia
| | - Wahidah H Al-Qahtani
- Department of Food Sciences & Nutrition, College of Food and Agricultural Sciences, King Saud University, P.O. Box 270677, Riyadh 11352, Saudi Arabia
| | - Mostafa A Abdel-Maksoud
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 270677, Riyadh 11352, Saudi Arabia
| | - Nermien H S Mousa
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Mohammed Alyafei
- Department of Integrative Agriculture, College of Agriculture and Veterinary Medicine, United Arab Emirates University, Abu Dhabi P.O. Box 15551, United Arab Emirates
| | - Hamada AbdElgawad
- Integrated Molecular Plant Physiology Research (IMPRES), Department of Biology, University of Antwerp, 2020 Antwerp, Belgium
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29
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Weng Y, Mega R, Abe F, Tsujimoto H, Okamoto M. Metabolic profiles in drought-tolerant wheat with enhanced abscisic acid sensitivity. PLoS One 2024; 19:e0307393. [PMID: 39038025 PMCID: PMC11262632 DOI: 10.1371/journal.pone.0307393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 07/03/2024] [Indexed: 07/24/2024] Open
Abstract
Global warming has led to the expansion of arid lands and more frequent droughts, which are the largest cause of global food production losses. In our previous study, we developed TaPYLox wheat overexpressing the plant hormone abscisic acid (ABA) receptor, which is important for the drought stress response in plants. TaPYLox showed resistance to drought stress and acquired water-saving traits that enable efficient grain production with less water use. In this study, we used TaPYLox to identify ABA-dependent and -independent metabolites in response to drought stress. We compared the variation of metabolites in wheat under well-watered, ABA treatment, and drought stress conditions using the ABA-sensitive TaPYLox line and control lines. The results showed that tagatose and L-serine were ABA-dependently regulated metabolites, because their stress-induced accumulation was increased by ABA treatment in TaPYLox. In contrast, L-valine, L-leucine, and DL-isoleucine, which are classified as branched chain amino acids, were not increased by ABA treatment in TaPYLox, suggesting that they are metabolites regulated in an ABA-independent manner. Interestingly, the accumulation of L-valine, L-leucine, and DL-isoleucine was suppressed in drought-tolerant TaPYLox under drought stress, suggesting that drought-tolerant wheat might be low in these amino acids. 3-dehydroshikimic acid and α-ketoglutaric acid were decreased by drought stress in an ABA-independent manner. In this study, we have succeeded in identifying metabolites that are regulated by drought stress in an ABA-dependent and -independent manner. The findings of this study should be useful for future breeding of drought-tolerant wheat.
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Affiliation(s)
- Yuanjie Weng
- United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Tokyo, Japan
- Center for Bioscience Research and Education, Utsunomiya University, Utsunomiya, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
| | - Ryosuke Mega
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, Japan
| | - Fumitaka Abe
- Division of Basic Research, Institute of Crop Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | | | - Masanori Okamoto
- Center for Bioscience Research and Education, Utsunomiya University, Utsunomiya, Japan
- RIKEN Center for Sustainable Resource Science, Yokohama, Japan
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, Japan
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30
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Zha L, Wei S, Huang D, Zhang J. Multi-Omics Analyses of Lettuce ( Lactuca sativa) Reveals Primary Metabolism Reorganization Supporting Distinct Features of Secondary Metabolism Induced by Supplementing UV-A Radiation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:15498-15511. [PMID: 38950542 DOI: 10.1021/acs.jafc.4c00394] [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: 07/03/2024]
Abstract
UV can serve as an effective light spectrum for regulating plant secondary metabolites, while relevant studies on UV-A are much less extensive than those on UV-B. A comprehensive understanding of the selective effects of UV-A on different secondary metabolites and the specific features of primary metabolism that drive these effects is still lacking. To address this knowledge gap, we conducted a study to analyze the dynamic changes in the metabolome and transcriptome of lettuce leaves irradiated with red plus UV-A light (monochromatic red light as control). Generally, UV-A promoted the synthesis of most phenylpropanoids and terpenoids originating from the shikimate and methylerythritol phosphate (MEP) pathway in plastids but sacrificed the synthesis of terpenoids derived from the mevalonate (MVA) pathway, particularly sesquiterpenes. Increased precursors supply for the shikimate and MEP pathway under UV-A was directly supported by the activation of the Calvin-Benson cycle and phosphoenolpyruvate transport. Whereas, along with phosphoenolpyruvate transport, the TCA cycle was restrained, causing deprivation of the MVA pathway precursor. In addition, UV-A also activated the plastidic oxidative branch of the pentose phosphate pathway, photorespiration, and malate shuttle, to ensure a sufficient supply of nitrogen, circulation homeostasis of the Calvin-Benson cycle, and energy balance, thus indirectly supporting UV-A-induced specific secondary metabolic output. This study provides a comprehensive framework for understanding the flexible primary-secondary metabolism interactions that are able to produce specific metabolites favorable for adaptation to environmental stimuli.
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Affiliation(s)
- Lingyan Zha
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shiwei Wei
- Shanghai Agrobiological Gene Center, Shanghai 201106, China
| | - Danfeng Huang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jingjin Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
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31
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Yang C, Chen J, Zhang Y, Huang J, Wang H, Chen J. Non-targeted metabolomics reveals the taste variations during Baccaurea ramiflora Lour. fruit maturation. FRONTIERS IN PLANT SCIENCE 2024; 15:1420231. [PMID: 39040510 PMCID: PMC11260711 DOI: 10.3389/fpls.2024.1420231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 06/14/2024] [Indexed: 07/24/2024]
Abstract
Baccaurea ramiflora Lour. is a new kind of underutilized wild fruit tree; the metabolic reasons for its fruit flavor changes are not yet clear. In this study, the pink flesh of this excellent tasting fruit (BR) was used to reveal the metabolic causes of taste variations through five developmental stages. We identified 154 common differential metabolites of different developmental stages based on non-targeted metabolomics analysis. The accumulation of sugar and fatty acids increased significantly after 73 days, while citric acid decreased significantly. Flesh color accumulation mainly occurred 53 days ago, and vitamin accumulation occurred after 93 days. Interestingly, L-sorbose and 5-hydroxyindole-3-acetic acid were positively correlated with the sugar-acid ratio but negatively correlated with titratable acids. It indicated that L-sorbose and 5-hydroxyindole-3-acetic acid may be taste biomarkers of BR B. ramiflora. The results provided new metabolic lines of evidence for the taste variation during the ripening process of B. ramiflora.
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Affiliation(s)
- Chongcheng Yang
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Jiaqi Chen
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Yang Zhang
- Organic Biology Group, Jiangxi Ganzhou Eco-environmental Monitoring Center, Ganzhou, China
| | - Jianjian Huang
- School of Food Engineering and Biotechnology, Hanshan Normal University, Chaozhou, China
| | - Huachen Wang
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Jie Chen
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
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32
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Liu C, Gu W, Liu C, Shi X, Li B, Chen B, Zhou Y. Tryptophan regulates sorghum root growth and enhances low nitrogen tolerance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108737. [PMID: 38763003 DOI: 10.1016/j.plaphy.2024.108737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 05/03/2024] [Accepted: 05/15/2024] [Indexed: 05/21/2024]
Abstract
Over evolutionary time, plants have developed sophisticated regulatory mechanisms to adapt to fluctuating nitrogen (N) environments, ensuring that their growth is balanced with their responses to N stress. This study explored the potential of L-tryptophan (Trp) in regulating sorghum root growth under conditions of N limitation. Here, two distinct sorghum genotypes (low-N tolerance 398B and low-N sensitive CS3541) were utilized for investigating effect of low-N stress on root morphology and conducting a comparative transcriptomics analysis. Our foundings indicated that 398B exhibited longer roots, greater root dry weights, and a higher Trp content compared to CS3541 under low-N conditions. Furthermore, transcriptome analysis revealed substantial differences in gene expression profiles related to Trp pathway and carbon (C) and N metabolism pathways between the two genotypes. Additional experiments were conducted to assess the effects of exogenous Trp treatment on the interplay between sorghum root growth and low-N tolerance. Our observations showed that Trp-treated plants developed longer root and had elevated levels of Trp and IAA under low-N conditons. Concurrently, these plants demonstrated stronger physiological activities in C and N metabolism when subjected to low-N stress. These results underscored the pivotal role of Trp on root growth and low-N stress responses by balancing IAA levels and C and N metabolism. This study not only deepens our understanding of how plants maintain growth plasticity during environmental stress but also provides valuable insights into the availability of amino acid in crops, which could be instrumental in developing strategies for promoting crop resilience to N deficiency.
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Affiliation(s)
- Chunjuan Liu
- College of Agronomy/Shenyang Agricultural University, Shenyang, Liaoning, 110866, PR China
| | - Wendong Gu
- College of Agronomy/Shenyang Agricultural University, Shenyang, Liaoning, 110866, PR China
| | - Chang Liu
- College of Agronomy/Shenyang Agricultural University, Shenyang, Liaoning, 110866, PR China
| | - Xiaolong Shi
- College of Agronomy/Shenyang Agricultural University, Shenyang, Liaoning, 110866, PR China
| | - Bang Li
- College of Agronomy/Shenyang Agricultural University, Shenyang, Liaoning, 110866, PR China
| | - Bingru Chen
- Institute of Crop Germplasm Resources, Jilin Academy of Agricultural Sciences, Changchun, 130033, Jilin, PR China
| | - Yufei Zhou
- College of Agronomy/Shenyang Agricultural University, Shenyang, Liaoning, 110866, PR China.
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33
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Bergman ME, Kortbeek RWJ, Gutensohn M, Dudareva N. Plant terpenoid biosynthetic network and its multiple layers of regulation. Prog Lipid Res 2024; 95:101287. [PMID: 38906423 DOI: 10.1016/j.plipres.2024.101287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 06/23/2024]
Abstract
Terpenoids constitute one of the largest and most chemically diverse classes of primary and secondary metabolites in nature with an exceptional breadth of functional roles in plants. Biosynthesis of all terpenoids begins with the universal five‑carbon building blocks, isopentenyl diphosphate (IPP) and its allylic isomer dimethylallyl diphosphate (DMAPP), which in plants are derived from two compartmentally separated but metabolically crosstalking routes, the mevalonic acid (MVA) and methylerythritol phosphate (MEP) pathways. Here, we review the current knowledge on the terpenoid precursor pathways and highlight the critical hidden constraints as well as multiple regulatory mechanisms that coordinate and homeostatically govern carbon flux through the terpenoid biosynthetic network in plants.
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Affiliation(s)
- Matthew E Bergman
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States; Purdue Center for Plant Biology, Purdue University, West Lafayette, IN, United States
| | - Ruy W J Kortbeek
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States; Purdue Center for Plant Biology, Purdue University, West Lafayette, IN, United States
| | - Michael Gutensohn
- Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV, United States
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, West Lafayette, IN, United States; Purdue Center for Plant Biology, Purdue University, West Lafayette, IN, United States; Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, United States.
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34
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Dai SY, Qin WX, Yu S, Li C, Yang YH, Pei YH. Honokiol and magnolol: A review of structure-activity relationships of their derivatives. PHYTOCHEMISTRY 2024; 223:114132. [PMID: 38714288 DOI: 10.1016/j.phytochem.2024.114132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 04/21/2024] [Accepted: 05/02/2024] [Indexed: 05/09/2024]
Abstract
Honokiol (HK) and magnolol (MAG) are typical representatives of neolignans possessing a wide range of biological activities and are employed as traditional medicines in Asia. In the past few decades, HK and MAG have been proven to be promising chemical scaffolds for the development of novel neolignan drugs. This review focuses on recent advances in the medicinal chemistry of HK and MAG derivatives, especially their structure-activity relationships. In addition, it also presents a comprehensive summary of the pharmacology, biosynthetic pathways, and metabolic characteristics of HK and MAG. This review can provide pharmaceutical chemists deeper insights into medicinal research on HK and MAG, and a reference for the rational design of HK and MAG derivatives.
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Affiliation(s)
- Si-Yang Dai
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, 150081, PR China
| | - Wen-Xiu Qin
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, 150081, PR China
| | - Shuo Yu
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, 150081, PR China
| | - Chang Li
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, 150081, PR China
| | - Yi-Hui Yang
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, 150081, PR China.
| | - Yue-Hu Pei
- Department of Medicinal Chemistry and Natural Medicine Chemistry, College of Pharmacy, Harbin Medical University, Harbin, 150081, PR China.
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35
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Kumar V, Nadarajan S, Boddupally D, Wang R, Bar E, Davidovich-Rikanati R, Doron-Faigenboim A, Alkan N, Lewinsohn E, Elad Y, Oren-Shamir M. Phenylalanine treatment induces tomato resistance to Tuta absoluta via increased accumulation of benzenoid/phenylpropanoid volatiles serving as defense signals. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 119:84-99. [PMID: 38578218 DOI: 10.1111/tpj.16745] [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: 04/13/2023] [Revised: 03/04/2024] [Accepted: 03/19/2024] [Indexed: 04/06/2024]
Abstract
Tuta absoluta ("leafminer"), is a major pest of tomato crops worldwide. Controlling this insect is difficult due to its efficient infestation, rapid proliferation, and resilience to changing weather conditions. Furthermore, chemical pesticides have only a short-term effect due to rapid development of T. absoluta strains. Here, we show that a variety of tomato cultivars, treated with external phenylalanine solutions exhibit high resistance to T. absoluta, under both greenhouse and open field conditions, at different locations. A large-scale metabolomic study revealed that tomato leaves absorb and metabolize externally given Phe efficiently, resulting in a change in their volatile profile, and repellence of T. absoluta moths. The change in the volatile profile is due to an increase in three phenylalanine-derived benzenoid phenylpropanoid volatiles (BPVs), benzaldehyde, phenylacetaldehyde, and 2-phenylethanol. This treatment had no effect on terpenes and green leaf volatiles, known to contribute to the fight against insects. Phe-treated plants also increased the resistance of neighboring non-treated plants. RNAseq analysis of the neighboring non-treated plants revealed an exclusive upregulation of genes, with enrichment of genes related to the plant immune response system. Exposure of tomato plants to either benzaldehyde, phenylacetaldehyde, or 2-phenylethanol, resulted in induction of genes related to the plant immune system that were also induced due to neighboring Phe-treated plants. We suggest a novel role of phenylalanine-derived BPVs as mediators of plant-insect interactions, acting as inducers of the plant defense mechanisms.
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Affiliation(s)
- Varun Kumar
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
- Center for Life Sciences, Mahindra University, Hyderabad, Telangana, 500043, India
| | - Stalin Nadarajan
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Dayakar Boddupally
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Ru Wang
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Einat Bar
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Rachel Davidovich-Rikanati
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Adi Doron-Faigenboim
- Department of Vegetable and Field Crops, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Noam Alkan
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Agriculture Research Organization, Newe Ya'ar Research Center, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Yigal Elad
- Department of Plant Pathology and Weed Research, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
| | - Michal Oren-Shamir
- Department of Ornamental Plants and Agricultural Biotechnology, Agricultural Research Organization, The Volcani Center, 68 HaMaccabim Road, P.O.B 15159, Rishon LeZion, 7505101, Israel
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36
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Jung S, Maeda HA. Debottlenecking the L-DOPA 4,5-dioxygenase step with enhanced tyrosine supply boosts betalain production in Nicotiana benthamiana. PLANT PHYSIOLOGY 2024; 195:2456-2471. [PMID: 38498597 DOI: 10.1093/plphys/kiae166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 03/20/2024]
Abstract
Synthetic biology provides emerging tools to produce valuable compounds in plant hosts as sustainable chemical production platforms. However, little is known about how supply and utilization of precursors is coordinated at the interface of plant primary and specialized metabolism, limiting our ability to efficiently produce high levels of target specialized metabolites in plants. L-Tyrosine is an aromatic amino acid precursor of diverse plant natural products including betalain pigments, which are used as the major natural food red colorants and more recently a visual marker for plant transformation. Here, we studied the impact of enhanced L-tyrosine supply on the production of betalain pigments by expressing arogenate dehydrogenase (TyrA) from table beet (Beta vulgaris, BvTyrAα), which has relaxed feedback inhibition by L-tyrosine. Unexpectedly, betalain levels were reduced when BvTyrAα was coexpressed with the betalain pathway genes in Nicotiana benthamiana leaves; L-tyrosine and 3,4-dihydroxy-L-phenylalanine (L-DOPA) levels were drastically elevated but not efficiently converted to betalains. An additional expression of L-DOPA 4,5-dioxygenase (DODA), but not CYP76AD1 or cyclo-DOPA 5-O-glucosyltransferase, together with BvTyrAα and the betalain pathway, drastically enhanced betalain production, indicating that DODA is a major rate-limiting step of betalain biosynthesis in this system. Learning from this initial test and further debottlenecking the DODA step maximized betalain yield to an equivalent or higher level than that in table beet. Our data suggest that balancing between enhanced supply ("push") and effective utilization ("pull") of precursor by alleviating a bottleneck step is critical in successful plant synthetic biology to produce high levels of target compounds.
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Affiliation(s)
- Soyoung Jung
- Department of Botany, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Hiroshi A Maeda
- Department of Botany, University of Wisconsin-Madison, Madison, WI 53706, USA
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Chen PY, Nguyen TTT, Lee RH, Hsu TW, Kao MH, Gojobori T, Chiang TY, Huang CL. Genome-wide expression analysis of vegetative organs during developmental and herbicide-induced whole plant senescence in Arabidopsis thaliana. BMC Genomics 2024; 25:621. [PMID: 38898417 PMCID: PMC11188203 DOI: 10.1186/s12864-024-10518-5] [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: 01/17/2024] [Accepted: 06/12/2024] [Indexed: 06/21/2024] Open
Abstract
BACKGROUND Whole plant senescence represents the final stage in the life cycle of annual plants, characterized by the decomposition of aging organs and transfer of nutrients to seeds, thereby ensuring the survival of next generation. However, the transcriptomic profile of vegetative organs during this death process remains to be fully elucidated, especially regarding the distinctions between natural programmed death and artificial sudden death induced by herbicide. RESULTS Differential genes expression analysis using RNA-seq in leaves and roots of Arabidopsis thaliana revealed that natural senescence commenced in leaves at 45-52 days after planting, followed by roots initiated at 52-60 days. Additionally, both organs exhibited similarities with artificially induced senescence by glyphosate. Transcription factors Rap2.6L and WKRY75 appeared to serve as central mediators of regulatory changes during natural senescence, as indicated by co-expression networks. Furthermore, the upregulation of RRTF1, exclusively observed during natural death, suggested its role as a regulator of jasmonic acid and reactive oxygen species (ROS) responses, potentially triggering nitrogen recycling in leaves, such as the glutamate dehydrogenase (GDH) shunt. Root senescence was characterized by the activation of AMT2;1 and GLN1;3, facilitating ammonium availability for root-to-shoot translocation, likely under the regulation of PDF2.1. CONCLUSIONS Our study offers valuable insights into the transcriptomic interplay between phytohormones and ROS during whole plant senescence. We observed distinct regulatory networks governing nitrogen utilization in leaf and root senescence processes. Furthermore, the efficient allocation of energy from vegetative organs to seeds emerges as a critical determinant of population sustainability of annual Arabidopsis.
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Affiliation(s)
- Po-Yi Chen
- Department of Life Sciences, National Cheng Kung University, Tainan, 701, Taiwan
| | - Thi Thuy Tu Nguyen
- Department of Life Sciences, National Cheng Kung University, Tainan, 701, Taiwan
| | - Ruey-Hua Lee
- Institute of Tropical Plant Sciences and Microbiology, National Cheng Kung University, Tainan, 701, Taiwan
| | - Tsai-Wen Hsu
- Taiwan Biodiversity Research Institute, Nantou, 552, Taiwan
| | - Ming-Hong Kao
- Department of Life Sciences, National Cheng Kung University, Tainan, 701, Taiwan
| | - Takashi Gojobori
- Department of Life Sciences, National Cheng Kung University, Tainan, 701, Taiwan.
- King Abdullah University of Science and Technology, 4700 KAUST, Thuwal, 23955-6900, Kingdom of Saudi Arabia.
| | - Tzen-Yuh Chiang
- Department of Life Sciences, National Cheng Kung University, Tainan, 701, Taiwan.
- Institute of Tropical Plant Sciences and Microbiology, National Cheng Kung University, Tainan, 701, Taiwan.
| | - Chao-Li Huang
- Institute of Tropical Plant Sciences and Microbiology, National Cheng Kung University, Tainan, 701, Taiwan.
- Graduate Program in Translational Agricultural Sciences, National Cheng Kung University and Academia Sinica, Tainan, 701, Taiwan.
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Abadie C, Lalande J, Dourmap C, Limami AM, Tcherkez G. Leaf day respiration involves multiple carbon sources and depends on previous dark metabolism. PLANT, CELL & ENVIRONMENT 2024; 47:2146-2162. [PMID: 38444114 DOI: 10.1111/pce.14871] [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: 10/06/2023] [Revised: 02/06/2024] [Accepted: 02/20/2024] [Indexed: 03/07/2024]
Abstract
Day respiration (Rd) is the metabolic, nonphotorespiratory process by which illuminated leaves liberate CO2 during photosynthesis. Rd is used routinely in photosynthetic models and is thus critical for calculations. However, metabolic details associated with Rd are poorly known, and this can be problematic to predict how Rd changes with environmental conditions and relates to night respiration. It is often assumed that day respiratory CO2 release just reflects 'ordinary' catabolism (glycolysis and Krebs 'cycle'). Here, we carried out a pulse-chase experiment, whereby a 13CO2 pulse in the light was followed by a chase period in darkness and then in the light. We took advantage of nontargeted, isotope-assisted metabolomics to determine non-'ordinary' metabolism, detect carbon remobilisation and compare light and dark 13C utilisation. We found that several concurrent metabolic pathways ('ordinary' catabolism, oxidative pentose phosphates pathway, amino acid production, nucleotide biosynthesis and secondary metabolism) took place in the light and participated in net CO2 efflux associated with day respiration. Flux reconstruction from metabolomics leads to an underestimation of Rd, further suggesting the contribution of a variety of CO2-evolving processes. Also, the cornerstone of the Krebs 'cycle', citrate, is synthetised de novo from photosynthates mostly in darkness, and remobilised or synthesised from stored material in the light. Collectively, our data provides direct evidence that leaf day respiration (i) involves several CO2-producing reactions and (ii) is fed by different carbon sources, including stored carbon disconnected from current photosynthates.
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Affiliation(s)
- Cyril Abadie
- Institut de recherche en horticulture et semences, INRAe, Université d'Angers, Beaucouzé, France
- Ecophysiologie et génomique fonctionnelle de la vigne, Institut des Sciences de la Vigne et du Vin, INRAe, Université de Bordeaux, Villenave-d'Ornon, France
| | - Julie Lalande
- Institut de recherche en horticulture et semences, INRAe, Université d'Angers, Beaucouzé, France
| | - Corentin Dourmap
- Institut de recherche en horticulture et semences, INRAe, Université d'Angers, Beaucouzé, France
| | - Anis M Limami
- Institut de recherche en horticulture et semences, INRAe, Université d'Angers, Beaucouzé, France
| | - Guillaume Tcherkez
- Institut de recherche en horticulture et semences, INRAe, Université d'Angers, Beaucouzé, France
- Research School of Biology, ANU College of Science, Australian National University, Canberra, Australia
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Luo J. Precision regulation of plant aromatic amino acid homeostasis. SCIENCE CHINA. LIFE SCIENCES 2024; 67:1316-1317. [PMID: 38388847 DOI: 10.1007/s11427-024-2545-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 02/01/2024] [Indexed: 02/24/2024]
Affiliation(s)
- Jie Luo
- Yazhouwan National Laboratory (YNL), Sanya, 572025, China.
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, 572025, China.
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Aloufi FA, AbdElgawad H, Halawani RF, Balkhyour MA, Hassan AHA. Selenium nanoparticles induce coumarin metabolism and essential oil production in Trachyspermum ammi under future climate CO 2 conditions. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 211:108705. [PMID: 38714128 DOI: 10.1016/j.plaphy.2024.108705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 04/21/2024] [Accepted: 05/03/2024] [Indexed: 05/09/2024]
Abstract
Research on nanoparticles (NPs) and future elevated CO2 (eCO2) is extensive, but the effects of SeNPs on plant growth and secondary metabolism under eCO2 remain uncertain. In this study, we explored the impact of SeNPs and/or eCO2 on the growth, physiology, chemical composition (primary metabolites, coumarins, and essential oils), and antioxidant capacity of Trachyspermum (T.) ammi. The treatment with SeNPs notably improved the biomass and photosynthesis of T. ammi plants, particularly under eCO2 conditions. Plant fresh and dry weights were improved by about 19, 33 and 36% in groups treated by SeNPs, eCO2, and SeNPs + eCO2, respectively. SeNPs + eCO2 induced photosynthesis, consequently enhancing sugar and amino acid levels. Similar to the increase in total sugars, amino acids showed variable enhancements ranging from 6 to 42% upon treatment with SeNPs + eCO2. At the level of the secondary metabolites, SeNPs + eCO2 substantially augmented coumarin biosynthesis and essential oil accumulation. Consistently, there were increases in coumarins and essential oil precursors (shikimic and cinnamic acids) and their biosynthetic enzymes. The enhanced accumulation of coumarins and essential oils resulted in increased overall antioxidant activity, as evidenced by improvements in FRAP, ORAC, TBARS, conjugated dienes, and inhibition % of hemolysis. Conclusively, the application of SeNPs demonstrates significant enhancements in plant growth and metabolism under future CO2 conditions, notably concerning coumarin metabolism and essential oil production of T. ammi.
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Affiliation(s)
- Fahed A Aloufi
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hamada AbdElgawad
- Integrated Molecular Plant Physiology Research, Department of Biology, University of Antwerp, Antwerp, Belgium; Department of Botany and Microbiology, Faculty of Science, Beni-Suef University, Beni Suef, 62511, Egypt
| | - Riyadh F Halawani
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mansour A Balkhyour
- Department of Environment, Faculty of Environmental Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abdelrahim H A Hassan
- School of Biotechnology, Nile University, Giza, 12588, Egypt; Department of Food Safety and Technology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt.
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He M, Liu A, Shi J, Xu YJ, Liu Y. Multi-Omics Reveals the Effects of Cannabidiol on Gut Microbiota and Metabolic Phenotypes. Cannabis Cannabinoid Res 2024; 9:714-727. [PMID: 37098174 DOI: 10.1089/can.2022.0331] [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] [Indexed: 04/27/2023] Open
Abstract
Introduction: Cannabidiol (CBD) has important pharmacological activity, which includes antispasmodic, antioxidant, antithrombotic, and antianxiety properties. CBD has been applied as a health supplement to atherosclerosis. However, CBDs effect on gut microbiota and metabolic phenotype is unclear. Materials and Methods: We constructed a high production of cardiovascular risk factors, such as trimethylamine-N-oxide (TMAO) and phenylacetylglutamine (PAGln), in a mouse model using Clostridium sporogenes colonization. We used 16S ribosomal RNA (rRNA) gene sequencing and ultra-high performance liquid chromatography-quadrupole time-of flight mass spectrometry-based metabolomics to evaluate the effect of CBD on gut microbiota and plasma metabolites. Results: CBD decreased the levels of creatine kinase (CK), alanine transaminase (ALT), and low-density lipoprotein cholesterol and markedly increased high-density lipoprotein cholesterol. Furthermore, CBD treatment increased the abundance of beneficial bacteria, which include Lachnospiraceae_NK4A136 and Blautia in the gut, but it decreased the levels of TMAO and PAGln in the plasma. Conclusion: CBD might have beneficial effects for cardiovascular protection.
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Affiliation(s)
- Mengxue He
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Aiyang Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Jiachen Shi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Yong-Jiang Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
| | - Yuanfa Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, China
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Ren RC, Kong LG, Zheng GM, Zhao YJ, Jiang X, Wu JW, Liu C, Chu J, Ding XH, Zhang XS, Wang GF, Zhao XY. Maize requires arogenate dehydratase 2 for resistance to Ustilago maydis and plant development. PLANT PHYSIOLOGY 2024; 195:1642-1659. [PMID: 38431524 DOI: 10.1093/plphys/kiae115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/05/2024] [Accepted: 01/23/2024] [Indexed: 03/05/2024]
Abstract
Maize (Zea mays) smut is a common biotrophic fungal disease caused by Ustilago maydis and leads to low maize yield. Maize resistance to U. maydis is a quantitative trait. However, the molecular mechanism underlying the resistance of maize to U. maydis is poorly understood. Here, we reported that a maize mutant caused by a single gene mutation exhibited defects in both fungal resistance and plant development. maize mutant highly susceptible to U. maydis (mmsu) with a dwarf phenotype forms tumors in the ear. A map-based cloning and allelism test demonstrated that 1 gene encoding a putative arogenate dehydratase/prephenate dehydratase (ADT/PDT) is responsible for the phenotypes of the mmsu and was designated as ZmADT2. Combined transcriptomic and metabolomic analyses revealed that mmsu had substantial differences in multiple metabolic pathways in response to U. maydis infection compared with the wild type. Disruption of ZmADT2 caused damage to the chloroplast ultrastructure and function, metabolic flux redirection, and reduced the amounts of salicylic acid (SA) and lignin, leading to susceptibility to U. maydis and dwarf phenotype. These results suggested that ZmADT2 is required for maintaining metabolic flux, as well as resistance to U. maydis and plant development in maize. Meanwhile, our findings provided insights into the maize response mechanism to U. maydis infection.
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Affiliation(s)
- Ru Chang Ren
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Ling Guang Kong
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Guang Ming Zheng
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Ya Jie Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Xin Jiang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Jia Wen Wu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Cuimei Liu
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, National Centre for Plant Gene Research (Beijing), Beijing 100101, China
| | - Jinfang Chu
- Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, National Centre for Plant Gene Research (Beijing), Beijing 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Hua Ding
- State Key Laboratory of Crop Biology, Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Xian Sheng Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, China
| | - Guan Feng Wang
- The Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, School of Life Sciences, Shandong University, Qingdao, Shandong 266237, China
| | - Xiang Yu Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong 271018, China
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Bao X, Chong P, He C, Wang X, Zhang F. Mechanism on the promotion of host growth and enhancement of salt tolerance by Bacillaceae isolated from the rhizosphere of Reaumuria soongorica. Front Microbiol 2024; 15:1408622. [PMID: 38881656 PMCID: PMC11176432 DOI: 10.3389/fmicb.2024.1408622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 05/21/2024] [Indexed: 06/18/2024] Open
Abstract
Salt stress is a major abiotic stress that affects the growth of Reaumuria soongorica and many psammophytes in the desert areas of Northwest China. However, various Plant Growth-Promoting Rhizobacteria (PGPR) have been known to play an important role in promoting plant growth and alleviating the damaging effects of salt stress. In this study, three PGPR strains belonging to Bacillaceae were isolated from the rhizosphere of Reaumuria soongorica by morphological and molecular identification. All isolated strains exhibited capabilities of producing IAA, solubilizing phosphate, and fixing nitrogen, and were able to tolerate high levels of NaCl stress, up to 8-12%. The results of the pot-based experiment showed that salt (400 mM NaCl) stress inhibited Reaumuria soongorica seedlings' growth performance as well as biomass production, but after inoculation with strains P2, S37, and S40, the plant's height significantly increased by 26.87, 17.59, and 13.36%, respectively (p < 0.05), and both aboveground and root fresh weight significantly increased by more than 2 times compared to NaCl treatment. Additionally, inoculation with P2, S37, and S40 strains increased the content of photosynthetic pigments, proline, and soluble protein in Reaumuria soongorica seedlings under NaCl stress, while reducing the content of malondialdehyde and soluble sugars. Metabolomic analysis showed that strain S40 induces Reaumuria soongorica seedling leaves metabolome reprogramming to regulate cell metabolism, including plant hormone signal transduction and phenylalanine, tyrosine, and tryptophan biosynthesis pathways. Under NaCl stress, inoculation with strain S40 upregulated differential metabolites in plant hormone signal transduction pathways including plant hormones such as auxins (IAA), cytokinins, and jasmonic acid. The results indicate that inoculation with Bacillaceae can promote the growth of Reaumuria soongorica seedlings under NaCl stress and enhance salt tolerance by increasing the content of photosynthetic pigments, accumulating osmoregulatory substances, regulating plant hormone levels This study contributes to the enrichment of PGPR strains capable of promoting the growth of desert plants and has significant implications for the psammophytes growth and development in desert regions, as well as the effective utilization and transformation of saline-alkali lands.
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Affiliation(s)
- Xinguang Bao
- College of Forest of Gansu Agriculture University, Lanzhou, China
| | - Peifang Chong
- College of Forest of Gansu Agriculture University, Lanzhou, China
| | - Cai He
- Wuwei Academy of Forestry, Wuwei, China
| | - Xueying Wang
- College of Forest of Gansu Agriculture University, Lanzhou, China
| | - Feng Zhang
- College of Forest of Gansu Agriculture University, Lanzhou, China
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Shor E, Vainstein A. Petunia PHYTOCHROME INTERACTING FACTOR 4/5 transcriptionally activates key regulators of floral scent. PLANT MOLECULAR BIOLOGY 2024; 114:66. [PMID: 38816626 PMCID: PMC11139750 DOI: 10.1007/s11103-024-01455-8] [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: 12/17/2023] [Accepted: 04/09/2024] [Indexed: 06/01/2024]
Abstract
Floral scent emission of petunia flowers is regulated by light conditions, circadian rhythms, ambient temperature and the phytohormones GA and ethylene, but the mechanisms underlying sensitivity to these factors remain obscure. PHYTOCHROME INTERACTING FACTORs (PIFs) have been well studied as components of the regulatory machinery for numerous physiological processes. Acting redundantly, they serve as transmitters of light, circadian, metabolic, thermal and hormonal signals. Here we identified and characterized the phylogenetics of petunia PIF family members (PhPIFs). PhPIF4/5 was revealed as a positive regulator of floral scent: TRV-based transient suppression of PhPIF4/5 in petunia petals reduced emission of volatiles, whereas transient overexpression increased scent emission. The mechanism of PhPIF4/5-mediated regulation of volatile production includes activation of the expression of genes encoding biosynthetic enzymes and a key positive regulator of the pathway, EMISSION OF BENZENOIDS II (EOBII). The PIF-binding motif on the EOBII promoter (G-box) was shown to be needed for this activation. As PhPIF4/5 homologues are sensors of dawn and expression of EOBII also peaks at dawn, the prior is proposed to be part of the diurnal control of the volatile biosynthetic machinery. PhPIF4/5 was also found to transcriptionally activate PhDELLAs; a similar positive effect of PIFs on DELLA expression was further confirmed in Arabidopsis seedlings. The PhPIF4/5-PhDELLAs feedback is proposed to fine-tune GA signaling for regulation of floral scent production.
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Affiliation(s)
- Ekaterina Shor
- Institute of Plant Sciences, ARO, Volcani Institute, Rishon Lezion, Israel
| | - Alexander Vainstein
- The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University, Rehovot, Israel.
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de la Torre F, Medina-Morales B, Blanca-Reyes I, Pascual MB, Ávila C, Cánovas FM, Castro-Rodríguez V. Properties and Functional Analysis of Two Chorismate Mutases from Maritime Pine. Cells 2024; 13:929. [PMID: 38891061 PMCID: PMC11171525 DOI: 10.3390/cells13110929] [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: 04/19/2024] [Revised: 05/17/2024] [Accepted: 05/18/2024] [Indexed: 06/20/2024] Open
Abstract
Through the shikimate pathway, a massive metabolic flux connects the central carbon metabolism with the synthesis of chorismate, the common precursor of the aromatic amino acids phenylalanine, tyrosine, and tryptophan, as well as other compounds, including salicylate or folate. The alternative metabolic channeling of chorismate involves a key branch-point, finely regulated by aromatic amino acid levels. Chorismate mutase catalyzes the conversion of chorismate to prephenate, a precursor of phenylalanine and tyrosine and thus a vast repertoire of fundamental derived compounds, such as flavonoids or lignin. The regulation of this enzyme has been addressed in several plant species, but no study has included conifers or other gymnosperms, despite the importance of the phenolic metabolism for these plants in processes such as lignification and wood formation. Here, we show that maritime pine (Pinus pinaster Aiton) has two genes that encode for chorismate mutase, PpCM1 and PpCM2. Our investigations reveal that these genes encode plastidial isoenzymes displaying activities enhanced by tryptophan and repressed by phenylalanine and tyrosine. Using phylogenetic studies, we have provided new insights into the possible evolutionary origin of the cytosolic chorismate mutases in angiosperms involved in the synthesis of phenylalanine outside the plastid. Studies based on different platforms of gene expression and co-expression analysis have allowed us to propose that PpCM2 plays a central role in the phenylalanine synthesis pathway associated with lignification.
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Affiliation(s)
- Fernando de la Torre
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus Universitario de Teatinos, 29071 Málaga, Spain; (B.M.-M.); (I.B.-R.); (M.B.P.); (C.Á.); (F.M.C.)
| | | | | | | | | | | | - Vanessa Castro-Rodríguez
- Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus Universitario de Teatinos, 29071 Málaga, Spain; (B.M.-M.); (I.B.-R.); (M.B.P.); (C.Á.); (F.M.C.)
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Xian F, Yang L, Ye H, Xu J, Yue X, Wang X. Revealing the Mechanism of Aroma Production Driven by High Salt Stress in Trichomonascus ciferrii WLW. Foods 2024; 13:1593. [PMID: 38890822 PMCID: PMC11172348 DOI: 10.3390/foods13111593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 06/20/2024] Open
Abstract
Douchi is a Chinese traditional fermented food with a unique flavor. Methyl anthranilate (MA) plays an important role in formation of this flavor. However, the complicated relationship between the MA formation and the metabolic mechanism of the key functional microorganisms remains unclear. Here, we elucidated the response mechanism of aroma production driven by high salt stress in Trichomonascus ciferrii WLW (T. ciferrii WLW), which originates from the douchi fermentation process. The highest production of MA was obtained in a 10% NaCl environment. The enhanced expression of the key enzyme genes of the pentose phosphate pathway and shikimic acid pathway directed carbon flow toward aromatic amino acid synthesis and helped sustain an increased expression of metK to synthesize a large amount of the methyl donor S-adenosylmethionine, which promoted methyl anthranilate yield. This provides a theoretical basis for in-depth research on the applications of the flavor formation mechanisms of fermented foods.
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Affiliation(s)
- Fangying Xian
- School of Life Science (Health), Jiangxi Normal University, Nanchang 330022, China; (F.X.); (L.Y.); (H.Y.); (J.X.)
| | - Lin Yang
- School of Life Science (Health), Jiangxi Normal University, Nanchang 330022, China; (F.X.); (L.Y.); (H.Y.); (J.X.)
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Huaqing Ye
- School of Life Science (Health), Jiangxi Normal University, Nanchang 330022, China; (F.X.); (L.Y.); (H.Y.); (J.X.)
| | - Jinlin Xu
- School of Life Science (Health), Jiangxi Normal University, Nanchang 330022, China; (F.X.); (L.Y.); (H.Y.); (J.X.)
| | - Xiaoping Yue
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Xiaolan Wang
- School of Life Science (Health), Jiangxi Normal University, Nanchang 330022, China; (F.X.); (L.Y.); (H.Y.); (J.X.)
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47
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Wang X, Li X, Dong S. Biochemical characterization and metabolic reprogramming of amino acids in Soybean roots under drought stress. PHYSIOLOGIA PLANTARUM 2024; 176:e14319. [PMID: 38693848 DOI: 10.1111/ppl.14319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 04/05/2024] [Accepted: 04/15/2024] [Indexed: 05/03/2024]
Abstract
Amino acids play important roles in stress resistance, plant growth, development, and quality, with roots serving as the primary organs for drought response. We conducted biochemical and multi-omics analyses to investigate the metabolic processes of root amino acids in drought-resistant (HN44) and drought-sensitive (HN65) soybean (Glycine max) varieties. Our analysis revealed an increase in total amino acid content in both varieties, with phenylalanine, proline, and methionine accumulating in both. Additionally, several amino acids exhibited significant decreases in HN65 but slight increases in HN44. Multi-omics association analysis identified 13 amino acid-related pathways. We thoroughly examined the changes in genes and metabolites involved in various amino acid metabolism/synthesis and determined core genes and metabolites through correlation networks. The phenylalanine, tyrosine, and tryptophan metabolic pathways and proline, glutamic acid and sulfur-containing amino acid pathways were particularly important for drought resistance. Some candidate genes, such as ProDH and P4HA family genes, and metabolites, such as O-acetyl-L-serine, directly affected up- and downstream metabolism to induce drought resistance. This study provided a basis for soybean drought resistance breeding.
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Affiliation(s)
- Xiyue Wang
- College of Agriculture, Northeast Agricultural University, Harbin, China
| | - Xiaomei Li
- College of Agriculture, Heilongjiang Agricultural Engineering Vocational College, Harbin, China
| | - Shoukun Dong
- College of Agriculture, Northeast Agricultural University, Harbin, China
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48
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Ni BB, Liu H, Wang ZS, Zhang GY, Sang ZY, Liu JJ, He CY, Zhang JG. A chromosome-scale genome of Rhus chinensis Mill. provides new insights into plant-insect interaction and gallotannins biosynthesis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:766-786. [PMID: 38271098 DOI: 10.1111/tpj.16631] [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: 07/21/2023] [Revised: 12/26/2023] [Accepted: 01/02/2024] [Indexed: 01/27/2024]
Abstract
Rhus chinensis Mill., an economically valuable Anacardiaceae species, is parasitized by the galling aphid Schlechtendalia chinensis, resulting in the formation of the Chinese gallnut (CG). Here, we report a chromosomal-level genome assembly of R. chinensis, with a total size of 389.40 Mb and scaffold N50 of 23.02 Mb. Comparative genomic and transcriptome analysis revealed that the enhanced structure of CG and nutritional metabolism contribute to improving the adaptability of R. chinensis to S. chinensis by supporting CG and galling aphid growth. CG was observed to be abundant in hydrolysable tannins (HT), particularly gallotannin and its isomers. Tandem repeat clusters of dehydroquinate dehydratase/shikimate dehydrogenase (DQD/SDH) and serine carboxypeptidase-like (SCPL) and their homologs involved in HT production were determined as specific to HT-rich species. The functional differentiation of DQD/SDH tandem duplicate genes and the significant contraction in the phenylalanine ammonia-lyase (PAL) gene family contributed to the accumulation of gallic acid and HT while minimizing the production of shikimic acid, flavonoids, and condensed tannins in CG. Furthermore, we identified one UDP glucosyltransferase (UGT84A), three carboxylesterase (CXE), and six SCPL genes from conserved tandem repeat clusters that are involved in gallotannin biosynthesis and hydrolysis in CG. We then constructed a regulatory network of these genes based on co-expression and transcription factor motif analysis. Our findings provide a genomic resource for the exploration of the underlying mechanisms of plant-galling insect interaction and highlight the importance of the functional divergence of tandem duplicate genes in the accumulation of secondary metabolites.
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Affiliation(s)
- Bing-Bing Ni
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
- Collaborative Innovation Center of Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Hong Liu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Zhao-Shan Wang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Guo-Yun Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Zi-Yang Sang
- Forest Enterprise of Wufeng County in Hubei Province, Wufeng, 443400, Hubei, China
| | - Juan-Juan Liu
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
| | - Cai-Yun He
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
- Collaborative Innovation Center of Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
| | - Jian-Guo Zhang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Tree Breeding and Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, 100091, China
- Collaborative Innovation Center of Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
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49
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Farder-Gomes CF, de Oliveira MA, Malaspina O, Nocelli RFC. Exposure of the stingless bee Melipona scutellaris to imidacloprid, pyraclostrobin, and glyphosate, alone and in combination, impair its walking activity and fat body morphology and physiology. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123783. [PMID: 38490525 DOI: 10.1016/j.envpol.2024.123783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/28/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
The stingless bee Melipona scutellaris performs buzz pollination, effectively pollinating several wild plants and crops with economic relevance. However, most research has focused on honeybees, leaving a significant gap in studies concerning native species, particularly regarding the impacts of pesticide combinations on these pollinators. Thus, this study aimed to evaluate the sublethal effects of imidacloprid (IMD), pyraclostrobin (PYR), and glyphosate (GLY) on the behavior and fat body cell morphology and physiology of M. scutellaris. Foragers were orally exposed to the different pesticides alone and in combination for 48 h. Bees fed with contaminated solution walked less, moved slower, presented morphological changes in the fat body, including vacuolization, altered cell shape and nuclei morphology, and exhibited a higher count of altered oenocytes and trophocytes. In all exposed groups, alone and in combination, the number of cells expressing caspase-3 increased, but the TLR4 number of cells expressing decreased compared to the control groups. The intensity of HSP70 immunolabeling increased compared to the control groups. However, the intensity of the immunolabeling of HSP90 decreased in the IMD, GLY, and I + G (IMD + GLY) groups but increased in I + P-exposed bees (IMD + PYR). Alternatively, exposure to PYR and P + G (PYR + GLY) did not affect the immunolabeling intensity. Our findings demonstrate the hazardous effects and environmental consequences of isolated and combined pesticides on a vital neotropical pollinator. Understanding how pesticides impact the fat body can provide crucial insights into the overall health and survival of native bee populations, which can help develop more environmentally friendly approaches to agricultural practices.
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Affiliation(s)
- Cliver Fernandes Farder-Gomes
- Departamento de Ciências da Natureza, Matemática e Educação, Universidade Federal de São Carlos Campus Araras, Araras, SP, 13600-970, Brazil.
| | - Marco Antônio de Oliveira
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa Campus Florestal, Florestal, MG, 35690-000, Brazil.
| | - Osmar Malaspina
- Universidade Estadual Paulista (UNESP) - "Júlio de Mesquita Filho", Instituto de Biociências (IB), Rio Claro, SP, 13506-900, Brazil.
| | - Roberta Ferreira Cornélio Nocelli
- Departamento de Ciências da Natureza, Matemática e Educação, Universidade Federal de São Carlos Campus Araras, Araras, SP, 13600-970, Brazil.
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50
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Reinecke A, Flaig IC, Lozano YM, Rillig MC, Hilker M. Drought induces moderate, diverse changes in the odour of grassland species. PHYTOCHEMISTRY 2024; 221:114040. [PMID: 38428627 DOI: 10.1016/j.phytochem.2024.114040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 03/03/2024]
Abstract
Plants react to drought stress with numerous changes including altered emissions of volatile organic compounds (VOC) from leaves, which provide protection against oxidative tissue damage and mediate numerous biotic interactions. Despite the share of grasslands in the terrestrial biosphere, their importance as carbon sinks and their contribution to global biodiversity, little is known about the influence of drought on VOC profiles of grassland species. Using coupled gas chromatography-mass spectrometry, we analysed the odorants emitted by 22 European grassland species exposed to an eight-week-lasting drought treatment (DT; 30% water holding capacity, WHC). We focused on the odorants emitted during the light phase from whole plant shoots in their vegetative stage. Emission rates were standardised to the dry weight of each shoot. Well-watered (WW) plants (70% WHC) served as control. Drought-induced significant changes included an increase in total emission rates of plant VOC in six and a decrease in three species. Diverging effects on the number of emitted VOC (chemical richness) or on the Shannon diversity of the VOC profiles were detected in 13 species. Biosynthetic pathways-targeted analyses revealed 13 species showing drought-induced higher emission rates of VOC from one, two, three, or four major biosynthetic pathways (lipoxygenase, shikimate, mevalonate and methylerythritol phosphate pathway), while six species exhibited reduced emission rates from one or two of these pathways. Similarity trees of odorant profiles and their drought-induced changes based on a biosynthetically informed distance metric did not match species phylogeny. However, a phylogenetic signal was detected for the amount of terpenoids released by the studied species under WW and DT conditions. A comparative analysis of emission rates of single compounds released by WW and DT plants revealed significant VOC profile dissimilarities in four species only. The moderate drought-induced changes in the odorant emissions of grassland species are discussed with respect to their impact on trophic interactions across the food web. (294 words).
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Affiliation(s)
- Andreas Reinecke
- Freie Universität Berlin, Inst. of Biology, Applied Zoology/Animal Ecology, Haderslebener Str. 9, 12163, Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 6, 14195, Berlin, Germany.
| | - Isabelle C Flaig
- Freie Universität Berlin, Inst. of Biology, Applied Zoology/Animal Ecology, Haderslebener Str. 9, 12163, Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 6, 14195, Berlin, Germany
| | - Yudi M Lozano
- Freie Universität Berlin, Inst. of Biology, Plant Ecology, Altensteinstr. 6, 14195, Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 6, 14195, Berlin, Germany
| | - Matthias C Rillig
- Freie Universität Berlin, Inst. of Biology, Plant Ecology, Altensteinstr. 6, 14195, Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 6, 14195, Berlin, Germany
| | - Monika Hilker
- Freie Universität Berlin, Inst. of Biology, Applied Zoology/Animal Ecology, Haderslebener Str. 9, 12163, Berlin, Germany; Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Altensteinstr. 6, 14195, Berlin, Germany
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