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Leclerc L, Nguyen TH, Duval P, Mariotti V, Petitot AS, Orjuela J, Ogier JC, Gaudriault S, Champion A, Nègre N. Early transcriptomic responses of rice leaves to herbivory by Spodoptera frugiperda. Sci Rep 2024; 14:2836. [PMID: 38310172 PMCID: PMC10838271 DOI: 10.1038/s41598-024-53348-x] [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: 07/19/2023] [Accepted: 01/31/2024] [Indexed: 02/05/2024] Open
Abstract
During herbivory, chewing insects deposit complex oral secretions (OS) onto the plant wound. Understanding how plants respond to the different cues of herbivory remains an active area of research. In this study, we used an herbivory-mimick experiment to investigate the early transcriptional response of rice plants leaves to wounding, OS, and OS microbiota from Spodoptera frugiperda larvae. Wounding induced a massive early response associated to hormones such as jasmonates. This response switched drastically upon OS treatment indicating the activation of OS specific pathways. When comparing native and dysbiotic OS treatments, we observed few gene regulation. This suggests that in addition to wounding the early response in rice is mainly driven by the insect compounds of the OS rather than microbial. However, microbiota affected genes encoding key phytohormone synthesis enzymes, suggesting an additional modulation of plant response by OS microbiota.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Nicolas Nègre
- DGIMI, Univ Montpellier, INRAE, Montpellier, France.
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2
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Holtsclaw RE, Mahmud S, Koo AJ. Identification and characterization of GLYCEROLIPASE A1 for wound-triggered JA biosynthesis in Nicotiana benthamiana leaves. PLANT MOLECULAR BIOLOGY 2024; 114:4. [PMID: 38227103 DOI: 10.1007/s11103-023-01408-7] [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: 07/28/2023] [Accepted: 12/03/2023] [Indexed: 01/17/2024]
Abstract
Although many important discoveries have been made regarding the jasmonate signaling pathway, how jasmonate biosynthesis is initiated is still a major unanswered question in the field. Previous evidences suggest that jasmonate biosynthesis is limited by the availability of fatty acid precursor, such as ⍺-linolenic acid (⍺-LA). This indicates that the lipase responsible for releasing α-LA in the chloroplast, where early steps of jasmonate biosynthesis take place, is the key initial step in the jasmonate biosynthetic pathway. Nicotiana benthamiana glycerol lipase A1 (NbGLA1) is homologous to N. attenuata GLA1 (NaGLA1) which has been reported to be a major lipase in leaves for jasmonate biosynthesis. NbGLA1 was studied for its potential usefulness in a species that is more common in laboratories. Virus-induced gene silencing of both NbGLA1 and NbGLA2, another homolog, resulted in more than 80% reduction in jasmonic acid (JA) biosynthesis in wounded leaves. Overexpression of NbGLA1 utilizing an inducible vector system failed to increase JA, indicating that transcriptional induction of NbGLA1 is insufficient to trigger JA biosynthesis. However, co-treatment with wounding in addition to NbGLA1 induction increased JA accumulation several fold higher than the gene expression or wounding alone, indicating an enhancement of the enzyme activity by wounding. Domain-deletion of a 126-bp C-terminal region hypothesized to have regulatory roles increased NbGLA1-induced JA level. Together, the data show NbGLA1 to be a major lipase for wound-induced JA biosynthesis in N. benthamiana leaves and demonstrate the use of inducible promoter-driven construct of NbGLA1 in conjunction with its transient expression in N. benthamiana as a useful system to study its protein function.
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Affiliation(s)
- Rebekah E Holtsclaw
- Department of Biochemistry, University of Missouri, 65211, Columbia, MO, USA
- Rubi Laboratories, 94577, San Leandro, CA, USA
| | - Sakil Mahmud
- Department of Biochemistry, University of Missouri, 65211, Columbia, MO, USA
| | - Abraham J Koo
- Department of Biochemistry, University of Missouri, 65211, Columbia, MO, USA.
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Xu Z, Cheng J, Wang T, Huang Q, Liu P, Zhang M, Zhang P, He L. Novel Jasmonic Acid-Coumarin Pathway in the Eggplant That Inhibits Vitellogenin Gene Expression To Prevent Mite Reproduction. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13979-13987. [PMID: 37698370 DOI: 10.1021/acs.jafc.3c04007] [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: 09/13/2023]
Abstract
Plants activate direct and indirect defense mechanisms in response to perceived herbivore invasion, which results in negative consequences for herbivores. Tetranychus cinnabarinus is a polyphagous generalist herbivore that inflicts substantial agricultural and horticultural damage. Our study revealed that mite feeding significantly increased jasmonic acid (JA) in the eggplant. The damage inflicted by the mites decreased considerably following the artificial application of JA, thereby indicating that JA initiated the defense response of the eggplant against mites. The transcriptomic and metabolomic analyses demonstrated the activation of the JA-coumarin pathway in response to mite feeding. This pathway protects the eggplant by suppressing the reproductive capacity and population size of the mites. The JA and coumarin treatments suppressed the vitellogenin gene (TcVg6) expression level. Additionally, RNA interference with TcVg6 significantly reduced the egg production and hatching rate of mites. In conclusion, the JA-coumarin pathway in the eggplant decreases the egg-hatching rate of mites through suppression of TcVg6.
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Affiliation(s)
- Zhifeng Xu
- College of Plant Protection, Southwest University, Chongqing 400715, People's Republic of China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing 400715, People's Republic of China
| | - Jinhui Cheng
- College of Plant Protection, Southwest University, Chongqing 400715, People's Republic of China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing 400715, People's Republic of China
| | - Tongyang Wang
- College of Plant Protection, Southwest University, Chongqing 400715, People's Republic of China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing 400715, People's Republic of China
| | - Qianqian Huang
- College of Plant Protection, Southwest University, Chongqing 400715, People's Republic of China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing 400715, People's Republic of China
| | - Peilin Liu
- College of Plant Protection, Southwest University, Chongqing 400715, People's Republic of China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing 400715, People's Republic of China
| | - Mengyu Zhang
- College of Plant Protection, Southwest University, Chongqing 400715, People's Republic of China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing 400715, People's Republic of China
| | - Ping Zhang
- College of Plant Protection, Southwest University, Chongqing 400715, People's Republic of China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing 400715, People's Republic of China
| | - Lin He
- College of Plant Protection, Southwest University, Chongqing 400715, People's Republic of China
- Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River (Ministry of Education), Southwest University, Chongqing 400715, People's Republic of China
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4
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Li B, Fu Y, Xi H, Liu S, Zhao W, Li P, Fan W, Wang D, Sun S. Untargeted Metabolomics Using UHPLC-HRMS Reveals Metabolic Changes of Fresh-Cut Potato during Browning Process. Molecules 2023; 28:molecules28083375. [PMID: 37110608 PMCID: PMC10144401 DOI: 10.3390/molecules28083375] [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: 03/14/2023] [Revised: 03/31/2023] [Accepted: 04/09/2023] [Indexed: 04/29/2023] Open
Abstract
Surface browning plays a major role in the quality loss of fresh-cut potatoes. Untargeted metabolomics were used to understand the metabolic changes of fresh-cut potato during the browning process. Their metabolites were profiled by ultra-high performance liquid chromatography coupled with high resolution mass spectrometry (UHPLC-HRMS). Data processing and metabolite annotation were completed by Compound Discoverer 3.3 software. Statistical analysis was applied to screen the key metabolites correlating with browning process. Fifteen key metabolites responsible for the browning process were putatively identified. Moreover, after analysis of the metabolic causes of glutamic acid, linolenic acid, glutathione, adenine, 12-OPDA and AMP, we found that the browning process of fresh-cut potatoes was related to the structural dissociation of the membrane, oxidation and reduction reaction and energy shortage. This work provides a reference for further investigation into the mechanism of browning in fresh-cut products.
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Affiliation(s)
- Baohong Li
- Flavor Research Center, Zhengzhou University, Zhengzhou 450001, China
| | - Yingjie Fu
- The Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, China
| | - Hui Xi
- The Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, China
| | - Shan Liu
- The Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, China
| | - Wuduo Zhao
- Flavor Research Center, Zhengzhou University, Zhengzhou 450001, China
- Center of Advanced Analysis and Gene Sequencing, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Li
- The Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, China
| | - Wu Fan
- Flavor Research Center, Zhengzhou University, Zhengzhou 450001, China
- The Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, China
| | - Dingzhong Wang
- Flavor Research Center, Zhengzhou University, Zhengzhou 450001, China
- The Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, China
| | - Shihao Sun
- Flavor Research Center, Zhengzhou University, Zhengzhou 450001, China
- The Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute, Zhengzhou 450001, China
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Transcription factor CsESE3 positively modulates both jasmonic acid and wax biosynthesis in citrus. ABIOTECH 2022; 3:250-266. [PMID: 36533263 PMCID: PMC9755798 DOI: 10.1007/s42994-022-00085-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/25/2022] [Indexed: 11/24/2022]
Abstract
PLIP lipases can initiate jasmonic acid (JA) biosynthesis. However, little is known about the transcriptional regulation of this process. In this study, an ERF transcription factor (CsESE3) was found to be co-expressed with all necessary genes for JA biosynthesis and several key genes for wax biosynthesis in transcriptomes of 'Newhall' navel orange. CsESE3 shows partial sequence similarity to the well-known wax regulator SHINEs (SHNs), but lacks a complete MM protein domain. Ectopic overexpression of CsESE3 in tomato (OE) resulted in reduction of fruit surface brightness and dwarf phenotype compared to the wild type. The OE tomato lines also showed significant increases in the content of wax and JA and the expression of key genes related to their biosynthesis. Overexpression of CsESE3 in citrus callus and fruit enhanced the JA content and the expression of JA biosynthetic genes. Furthermore, CsESE3 could bind to and activate the promoters of two phospholipases from the PLIP gene family to initiate JA biosynthesis. Overall, this study indicated that CsESE3 could mediate JA biosynthesis by activating PLIP genes and positively modulate wax biosynthesis. The findings provide important insights into the coordinated control of two defense strategies of plants represented by wax and JA biosynthesis. Supplementary Information The online version contains supplementary material available at 10.1007/s42994-022-00085-2.
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Ye Y, Fernández-Milmanda GL. Ready to start? Insights on the initiation of the jasmonic acid burst. PLANT PHYSIOLOGY 2022; 189:1898-1900. [PMID: 35639750 PMCID: PMC9343000 DOI: 10.1093/plphys/kiac246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 05/11/2022] [Indexed: 05/28/2023]
Affiliation(s)
- Yajin Ye
- Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education of China, Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
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Shinya T, Miyamoto K, Uchida K, Hojo Y, Yumoto E, Okada K, Yamane H, Galis I. Chitooligosaccharide elicitor and oxylipins synergistically elevate phytoalexin production in rice. PLANT MOLECULAR BIOLOGY 2022; 109:595-609. [PMID: 34822009 DOI: 10.1007/s11103-021-01217-w] [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: 07/18/2021] [Accepted: 11/06/2021] [Indexed: 06/13/2023]
Abstract
We show that in rice, the amino acid-conjugates of JA precursor, OPDA, may function as a non-canonical signal for the production of phytoalexins in coordination with the innate chitin signaling. The core oxylipins, jasmonic acid (JA) and JA-Ile, are well-known as potent regulators of plant defense against necrotrophic pathogens and/or herbivores. However, recent studies also suggest that other oxylipins, including 12-oxo-phytodienoic acid (OPDA), may contribute to plant defense. Here, we used a previously characterized metabolic defense marker, p-coumaroylputrescine (CoP), and fungal elicitor, chitooligosaccharide, to specifically test defense role of various oxylipins in rice (Oryza sativa). While fungal elicitor triggered a rapid production of JA, JA-Ile, and their precursor OPDA, rice cells exogenously treated with the compounds revealed that OPDA, rather than JA-Ile, can stimulate the CoP production. Next, reverse genetic approach and oxylipin-deficient rice mutant (hebiba) were used to uncouple oxylipins from other elicitor-triggered signals. It appeared that, without oxylipins, residual elicitor signaling had only a minimal effect but, in synergy with OPDA, exerted a strong stimulatory activity towards CoP production. Furthermore, as CoP levels were compromised in the OPDA-treated Osjar1 mutant cells impaired in the oxylipin-amino acid conjugation, putative OPDA-amino acid conjugates emerged as hypothetical regulators of CoP biosynthesis. Accordingly, we found several OPDA-amino acid conjugates in rice cells treated with exogenous OPDA, and OPDA-Asp was detected, although in small amounts, in the chitooligosaccharide-treated rice. However, as synthetic OPDA-Asp and OPDA-Ile, so far, failed to induce CoP in cells, it suggests that yet another presumed OPDA-amino acid form(s) could be acting as novel regulator(s) of phytoalexins in rice.
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Affiliation(s)
- Tomonori Shinya
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Okayama, 710-0046, Japan.
| | - Koji Miyamoto
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, Utsunomiya, Tochigi, 320-8551, Japan
| | - Kenichi Uchida
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, Utsunomiya, Tochigi, 320-8551, Japan
- Advanced Instrumental Analysis Center, Teikyo University, Utsunomiya, Tochigi, 320-8551, Japan
| | - Yuko Hojo
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Okayama, 710-0046, Japan
| | - Emi Yumoto
- Advanced Instrumental Analysis Center, Teikyo University, Utsunomiya, Tochigi, 320-8551, Japan
| | - Kazunori Okada
- Agro-Biotechnology Research Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Hisakazu Yamane
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, Utsunomiya, Tochigi, 320-8551, Japan
- Advanced Instrumental Analysis Center, Teikyo University, Utsunomiya, Tochigi, 320-8551, Japan
| | - Ivan Galis
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Okayama, 710-0046, Japan
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Wan H, Liu H, Zhang J, Lyu Y, Li Z, He Y, Zhang X, Deng X, Brotman Y, Fernie AR, Cheng Y, Wen W. Lipidomic and transcriptomic analysis reveals reallocation of carbon flux from cuticular wax into plastid membrane lipids in a glossy "Newhall" navel orange mutant. HORTICULTURE RESEARCH 2020; 7:41. [PMID: 32257227 PMCID: PMC7109130 DOI: 10.1038/s41438-020-0262-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 12/26/2019] [Accepted: 02/07/2020] [Indexed: 05/10/2023]
Abstract
Both cuticle and membrane lipids play essential roles in quality maintenance and disease resistance in fresh fruits. Many reports have indicated the modification of alternative branch pathways in epicuticular wax mutants; however, the specific alterations concerning lipids have not been clarified thus far. Here, we conducted a comprehensive, time-resolved lipidomic, and transcriptomic analysis on the "Newhall" navel orange (WT) and its glossy mutant (MT) "Gannan No. 1". The results revealed severely suppressed wax formation accompanied by significantly elevated production of 36-carbon plastid lipids with increasing fruit maturation in MT. Transcriptomics analysis further identified a series of key functional enzymes and transcription factors putatively involved in the biosynthesis pathways of wax and membrane lipids. Moreover, the high accumulation of jasmonic acid (JA) in MT was possibly due to the need to maintain plastid lipid homeostasis, as the expression levels of two significantly upregulated lipases (CsDAD1 and CsDALL2) were positively correlated with plastid lipids and characterized to hydrolyze plastid lipids to increase the JA content. Our results will provide new insights into the molecular mechanisms underlying the natural variation of plant lipids to lay a foundation for the quality improvement of citrus fruit.
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Affiliation(s)
- Haoliang Wan
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Hongbo Liu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, 430070 Wuhan, China
| | - Jingyu Zhang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Yi Lyu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Youyi Xilu 127, Xi’an, 710072 Shaanxi China
| | - Zhuoran Li
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Yizhong He
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Xiaoliang Zhang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Xiuxin Deng
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Yariv Brotman
- Department of Life Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Alisdair R. Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Am Muehlenberg 1, 14476 Potsdam, Germany
| | - Yunjiang Cheng
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
| | - Weiwei Wen
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, 430070 Wuhan, China
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Maynard D, Gröger H, Dierks T, Dietz KJ. The function of the oxylipin 12-oxophytodienoic acid in cell signaling, stress acclimation, and development. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:5341-5354. [PMID: 30169821 DOI: 10.1093/jxb/ery316] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 08/30/2018] [Indexed: 05/24/2023]
Abstract
Forty years ago, 12-oxophytodienoic acid (12-OPDA) was reported as a prostaglandin (PG)-like metabolite of linolenic acid found in extracts of flaxseed. Since then, numerous studies have determined the role of 12-OPDA in regulating plant immunity, seed dormancy, and germination. This review summarizes our current knowledge of the regulation of 12-OPDA synthesis in the chloroplast and 12-OPDA-dependent signaling in gene expression and targeting protein functions. We describe the properties of OPDA that are linked to the activities of PGs, which are derived from arachidonic acid and act as tissue hormones in animals, including humans. The similarity of OPDA with bioactive PGs is particularly evident for the most-studied cyclopentenone, PG 15-dPGJ2. In addition to chemical approaches towards 12-OPDA synthesis, bio-organic synthesis strategies for 12-OPDA and analogous substances have recently been established. The resulting availability of OPDA will aid the identification of additional effector proteins, help in elucidating the mechanisms of OPDA sensing and transmission, and will foster the analysis of the physiological responses to OPDA in plants. There is a need to determine the compartmentation and transport of 12-OPDA and its conjugates, over long distances as well as short. It will be important to further study OPDA in animal and human cells, for example with respect to beneficial anti-inflammatory and anti-cancer activities.
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Affiliation(s)
- Daniel Maynard
- Biochemistry and Physiology of Plants, Faculty of Biology, Bielefeld University, Bielefeld, Germany
| | - Harald Gröger
- Chair of Organic Chemistry I, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Thomas Dierks
- Biochemistry I, Faculty of Chemistry, Bielefeld University, Bielefeld, Germany
| | - Karl-Josef Dietz
- Biochemistry and Physiology of Plants, Faculty of Biology, Bielefeld University, Bielefeld, Germany
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Vigor C, Reversat G, Rocher A, Oger C, Galano JM, Vercauteren J, Durand T, Tonon T, Leblanc C, Potin P. Isoprostanoids quantitative profiling of marine red and brown macroalgae. Food Chem 2018; 268:452-462. [PMID: 30064783 DOI: 10.1016/j.foodchem.2018.06.111] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 06/18/2018] [Accepted: 06/21/2018] [Indexed: 12/26/2022]
Abstract
With the increasing demand for direct human and animal consumption seaweed farming is rapidly expanding worldwide. Macroalgae have colonized aquatic environments in which they are submitted to frequent changes in biotic and abiotic factors that can trigger oxidative stress (OS). Considering that isoprostanoid derivatives may constitute the most relevant OS biomarkers, we were interested to establish their profile in two red and four brown macroalgae. Seven phytoprostanes, three phytofuranes, and four isoprostanes were quantified through a new micro-LC-MS/MS method. The isoprostanoid contents vary greatly among all the samples, the ent-16(RS)-9-epi-ST-Δ14-10-PhytoF and the sum of 5-F2t-IsoP and 5-epi-5F2t-IsoP being the major compounds for most of the macroalgae studied. We further quantified these isoprostanoids in macroalgae submitted to heavy metal (copper) exposure. In most of the cases, their concentrations increased after 24 h of copper stress corroborating the original hypothesis. One exception is the decrease of ent-9-L1-PhytoP content in L. digitata.
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Affiliation(s)
- Claire Vigor
- Institut des Biomolécules Max Mousseron IBMM - UMR 5247 - CNRS - UM - ENSCM, Faculté de pharmacie 15, Avenue Charles Flahault, 34060 Montpellier CEDEX 2, France.
| | - Guillaume Reversat
- Institut des Biomolécules Max Mousseron IBMM - UMR 5247 - CNRS - UM - ENSCM, Faculté de pharmacie 15, Avenue Charles Flahault, 34060 Montpellier CEDEX 2, France
| | - Amandine Rocher
- Institut des Biomolécules Max Mousseron IBMM - UMR 5247 - CNRS - UM - ENSCM, Faculté de pharmacie 15, Avenue Charles Flahault, 34060 Montpellier CEDEX 2, France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron IBMM - UMR 5247 - CNRS - UM - ENSCM, Faculté de pharmacie 15, Avenue Charles Flahault, 34060 Montpellier CEDEX 2, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron IBMM - UMR 5247 - CNRS - UM - ENSCM, Faculté de pharmacie 15, Avenue Charles Flahault, 34060 Montpellier CEDEX 2, France
| | - Joseph Vercauteren
- Institut des Biomolécules Max Mousseron IBMM - UMR 5247 - CNRS - UM - ENSCM, Faculté de pharmacie 15, Avenue Charles Flahault, 34060 Montpellier CEDEX 2, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron IBMM - UMR 5247 - CNRS - UM - ENSCM, Faculté de pharmacie 15, Avenue Charles Flahault, 34060 Montpellier CEDEX 2, France
| | - Thierry Tonon
- Sorbonne Université, CNRS, Integrative Biology of Marine Models (LBI2M), Station Biologique de Roscoff (SBR), 29680 Roscoff, France
| | - Catherine Leblanc
- Sorbonne Université, CNRS, Integrative Biology of Marine Models (LBI2M), Station Biologique de Roscoff (SBR), 29680 Roscoff, France
| | - Philippe Potin
- Sorbonne Université, CNRS, Integrative Biology of Marine Models (LBI2M), Station Biologique de Roscoff (SBR), 29680 Roscoff, France
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Scholz SS, Reichelt M, Boland W, Mithöfer A. Additional evidence against jasmonate-induced jasmonate induction hypothesis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2015; 239:9-14. [PMID: 26398786 DOI: 10.1016/j.plantsci.2015.06.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 06/20/2015] [Accepted: 06/27/2015] [Indexed: 06/05/2023]
Abstract
Jasmonates are phytohormones involved in development and stress reactions. The most prominent jasmonate is jasmonic acid, however, the bioactive jasmonate is (+)-7-iso-jasmonoyl-L-isoleucine (JA-Ile). Biosynthesis of jasmonates is long time known; compartmentalization, enzymes and corresponding genes are well studied. Because all genes encoding these biosynthetic enzymes are jasmonate inducible, a hypothesis of jasmonate-induced-jasmonate-biosynthesis is widely accepted. Here, this hypothesis was revisited by employing the synthetic JA-Ile mimic coronalon to intact and wounded leaves, which excludes structural cross-contamination with endogenous jasmonates. At an effective concentration that induced various jasmonate-responsive genes in Arabidopsis, neither accumulation of endogenous jasmonic acid, JA-Ile, nor of their hydroxylated metabolites was detected. Results indicate that in spite of jasmonate-induced biosynthetic gene expression, no jasmonate biosynthesis/accumulation takes place supporting a post-translational regulation.
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Affiliation(s)
- Sandra S Scholz
- Bioorganic Chemistry, Max Planck Institute for Chemical Ecology, Hans-Knöll-Str. 8, D-07745 Jena, Germany
| | - Michael Reichelt
- Biochemistry, Max Planck Institute for Chemical Ecology, Hans-Knöll-Str. 8, D-07745 Jena, Germany
| | - Wilhelm Boland
- Bioorganic Chemistry, Max Planck Institute for Chemical Ecology, Hans-Knöll-Str. 8, D-07745 Jena, Germany
| | - Axel Mithöfer
- Bioorganic Chemistry, Max Planck Institute for Chemical Ecology, Hans-Knöll-Str. 8, D-07745 Jena, Germany.
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Shi J, Ma C, Qi D, Lv H, Yang T, Peng Q, Chen Z, Lin Z. Transcriptional responses and flavor volatiles biosynthesis in methyl jasmonate-treated tea leaves. BMC PLANT BIOLOGY 2015; 15:233. [PMID: 26420557 PMCID: PMC4588909 DOI: 10.1186/s12870-015-0609-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 09/08/2015] [Indexed: 05/18/2023]
Abstract
BACKGROUND Tea (Camellia sinensis) has long been consumed worldwide for its amazing flavor and aroma. Methyl jasmonate (MeJA), which acts as an effective elicitor among the plant kingdom, could mostly improve the quality of tea aroma by promoting flavor volatiles in tea leaves. Although a variety of volatile secondary metabolites that contribute to aroma quality have been identified, our understanding of the biosynthetic pathways of these compounds has remained largely incomplete. Therefore, information aboaut the transcriptome of tea leaves and, specifically, details of any changes in gene expression in response to MeJA, is required for a better understanding of the biological mechanisms of MeJA-mediated volatiles biosynthesis. Moreover, MeJA treatment could exaggerate the responses of secondary metabolites and some gene expression which offer a better chance to figure out the mechanism. RESULTS The results of two-dimensional gas-chromatograph mass-spectrometry showed that the terpenoids content in MeJA-treated tea leaves increased, especially linalool, geraniol, and phenylethyl alcohol. More importantly, we carried out RNA-seq to identify the differentially expressed genes (DEGs) related to volatiles biosynthesis pathways induced by MeJA treatment (0 h, 12 h, 24 h and 48 h) in tea leaves. We identified 19245, 18614, 11890 DEGs respectively in the MeJA_12h, MeJA_24 h and MeJA_48 h samples. The α-Lenolenic acid degradation pathway was firstly responded resulting in activating the JA-pathway inner tea leaves, and the MEP/DOXP pathway significantly exaggerated. Notably, the expression level of jasmonate O-methyltransferase, which is associated with the central JA biosynthesis pathway, was increased by 7.52-fold in MeJA_24 h tea leaves. Moreover, the genes related to the terpenoid backbone biosynthesis pathway showed different expression patterns compared with the untreated leaves. The expression levels of 1-deoxy-D-xylulose-phosphate synthase (DXS), all-trans-nonaprenyl-diphosphate synthase, geranylgeranyl reductase, geranylgeranyl diphosphate synthase (type II), hydroxymethylglutaryl-CoA reductase and 4-hydroxy-3-methylbut-2-enyl diphosphate reductase increased by approximately 2-4-fold. CONCLUSIONS The results of two-dimension gas-chromatography mass-spectrometry analysis suggested that exogenous application of MeJA could induce the levels of volatile components in tea leaves, especially the geraniol, linalool and its oxides. Moreover, the transcriptome analysis showed increased expression of genes in α-Lenolenic acid degradation pathway which produced massive jasmonic acid and quickly activated holistic JA-pathway inner tea leaves, also the terpenoid backbones biosynthesis pathway was significantly affected after MeJA treatment. In general, MeJA could greatly activate secondary metabolism pathways, especially volatiles. The results will deeply increase our understanding of the volatile metabolites biosynthesis pathways of tea leaves in response to MeJA.
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Affiliation(s)
- Jiang Shi
- />Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South Meiling Road, Hangzhou, Zhejiang 310008 PR China
- />Graduate School of Chinese Academy of Agricultural Sciences, 12 South Street of Zhongguancun, Beijing, 100081 PR China
| | - ChengYing Ma
- />Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South Meiling Road, Hangzhou, Zhejiang 310008 PR China
| | - DanDan Qi
- />Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South Meiling Road, Hangzhou, Zhejiang 310008 PR China
- />Graduate School of Chinese Academy of Agricultural Sciences, 12 South Street of Zhongguancun, Beijing, 100081 PR China
| | - HaiPeng Lv
- />Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South Meiling Road, Hangzhou, Zhejiang 310008 PR China
| | - Ting Yang
- />Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South Meiling Road, Hangzhou, Zhejiang 310008 PR China
- />Graduate School of Chinese Academy of Agricultural Sciences, 12 South Street of Zhongguancun, Beijing, 100081 PR China
| | - QunHua Peng
- />Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South Meiling Road, Hangzhou, Zhejiang 310008 PR China
| | - ZongMao Chen
- />Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South Meiling Road, Hangzhou, Zhejiang 310008 PR China
| | - Zhi Lin
- />Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9th South Meiling Road, Hangzhou, Zhejiang 310008 PR China
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Matsumoto H, Riechers DE, Lygin AV, Baluška F, Sivaguru M. Aluminum Signaling and Potential Links with Safener-Induced Detoxification in Plants. ALUMINUM STRESS ADAPTATION IN PLANTS 2015. [DOI: 10.1007/978-3-319-19968-9_1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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