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jasmonate perception: Ligand-receptor interaction, regulation, and evolution

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Molecular Plant 2023年第1期16卷 23-42页

作者： Shuai Hu Kaiming Yu Jianbin Yan Xiaoyi Shan Daoxin Xie MOE Laboratory of Bioinformatics Tsinghua-Peking Center for Life SciencesSchool of Life SciencesTsinghua UniversityBeijing 100084China Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program School of Life SciencesTsinghua UniversityBeijing 100084China Shenzhen Branch Guangdong Laboratory of Lingnan Modern AgricultureKey Laboratory of Synthetic BiologyMinistry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518124China Kunpeng Institute of Modern Agriculture at Foshan Chinese Academy of Agricultural SciencesFoshan 528200China

Phytohormones integrate external environmental and developmental signals with internal cellular responses for plant survival and multiplication in changing surroundings.jasmonate(JA),which might originate from prokaryotes and benefit plant terrestrial adaptation,is a vital phytohormone that regulates diverse developmental processes and defense responses against various environmental stresses.In this review,we first provide an overview of ligand-receptor binding techniques used for the characterization of phytohormone-receptor interactions,then introduce the identification of the receptor COI1 and active JA molecules,and finally summarize recent advances on the regulation of JA perception and its evolution.

关键词： jasmonate COI1 hormone perception ligand-receptor interaction ligand-receptor binding techniques evolution

Regulation and integration of plant jasmonate signaling:a comparative view of monocot and dicot

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Journal of Genetics and Genomics 2022年第8期49卷 704-714页

作者： Shiwei Wan Xiu-Fang Xin National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China University of Chinese Academy of Sciences Beijing 100049China CAS-JIC Center of Excellence for Plant and Microbial Sciences(CEPAMS) Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China

The phytohormone jasmonate plays a pivotal role in various aspects of plant life,including developmental programs and defense against pests and pathogens.A large body of knowledge on jasmonate biosynthesis,signal transduction as well as its functions in diverse plant processes has been gained in the past two decades.In addition,there exists extensive crosstalk between jasmonate pathway and other phytohormone pathways,such as salicylic acid(SA)and gibberellin(GA),in co-regulation of plant immune status,fine-tuning the balance of plant growth and defense,and so on,which were mostly learned from studies in the dicotyledonous model plants Arabidopsis thaliana and tomato but much less in monocot.Interestingly,existing evidence suggests both conservation and functional divergence in terms of core components of jasmonate pathway,its biological functions and signal integration with other phytohormones,between monocot and dicot.In this review,we summarize the current understanding on JA signal initiation,perception and regulation,and highlight the distinctive characteristics in different lineages of plants.

关键词： jasmonate Phytohormone Signaling Crosstalk Plant defense Development Stress response

Histone H3 lysine 27 trimethylation suppresses jasmonate biosynthesis and signaling to affect male fertility under high temperature in cotton

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Plant Communications 2023年第6期4卷 96-112页

作者： Yanlong Li Miao Chen Aamir Hamid Khan Yizan Ma Xin He Jing Yang Rui Zhang Huanhuan Ma Chunyang Zuo Yawei Li Jie Kong Maojun Wang Longfu Zhu Xianlong Zhang Ling Min National Key Laboratory of Crop Genetic Improvement&Hubei Hongshan Laboratory Huazhong Agricultural UniversityWuhan 430070HubeiChina Institute of Economic Crops Xinjiang Academy of Agricultural SciencesUrumqi 830091XinjiangChina

High-temperature(HT)stress causes male sterility in crops,thus decreasing yields.To explore the possible contribution of histone modifications to male fertility under HT conditions,we defined the histone methylation landscape for the marks histone H3 lysine 27 trimethylation(H3K27me3)and histone H3 lysine 4 trimethylation(H3K4me3)by chromatin immunoprecipitation sequencing(ChIP-seq)in two differing upland cotton(Gossypium hirsutum)varieties.We observed a global disruption in H3K4me3 and H3K27me3 modifications,especially H3K27me3,in cotton anthers subjected to HT.HT affected the bivalent H3K4me3–H3K27me3 modification more than either monovalent modification.We determined that removal of H3K27me3 at the promoters of jasmonate-related genes increased their expression,maintaining male fertility under HT in the HT-tolerant variety at the anther dehiscence stage.Modulating jasmonate homeostasis or signaling resulted in an anther indehiscence phenotype under HT.Chemical suppression of H3K27me3 deposition increased jasmonic acid contents and maintained male fertility under HT.In summary,our study provides new insights into the regulation of male fertility by histone modifications under HT and suggests a potential strategy for improving cotton HT tolerance.

关键词： high temperature H3K27me3 H3K4me3 cotton anther jasmonate

A molecular framework for signaling crosstalk between jasmonate and ethylene in anthocyanin biosynthesis,trichome development,and defenses against insect herbivores in Arabidopsis

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Journal of Integrative Plant Biology 2022年第9期64卷 1770-1788页

作者： Susheng Song Bei Liu Junqiao Song Shihai Pang Tianxue Song Shang Gao Yue Zhang Huang Huang Tiancong Qi College of Life Sciences Capital Normal Universityand Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environmental ImprovementBeijing100048 China School of Life Sciences Tsinghua UniversityBeijing100084 China

The phytohormones ethylene(ET)and jasmonate(JA)regulate plant development,growth,and defense responses;however,the molecular basis for their signaling crosstalk is unclear.Here,we show that JA-ZIM-domain(JAZ)proteins,which repress JA signaling,repress trichome initiation/branching and anthocyanin accumulation,and inhibit the transcriptional activity of the basic helix-loop-helix(bHLH)-MYBmembers(GLABRA3(GL3)-GL1 and TRANSPARENT TESTA 8(TT8)-MYB75)of WD-repeat/bHLH/MYB(WBM)complexes.The ET-stabilized transcription factors ETHYLENEINSENSITIVE3(EIN3)and EIN3-LIKE1(EIL1)were found to bind to several members of WBM complexes,including GL3,ENHANCER OF GLABRA3(EGL3),TT8,GL1,MYB75,and TRANSPARENT TESTA GLABRA1(TTG1).This binding repressed the transcriptional activity of the b HLH-MYB proteins and inhibited anthocyanin accumulation,trichome formation,and defenses against insect herbivores while promoting root hair formation.Conversely,the JA-activated b HLH members GL3,EGL3,and TT8 of WBM complexes were able to interact with and attenuate the transcriptional activity of EIN3/EIL1 at the HOOKLESS1 promoter,and their overexpression inhibited apical hook formation.Thus,this study demonstrates a molecular framework for signaling crosstalk between JA and ET in plant development,secondary metabolism,and defense responses.

关键词： anthocyanin defense ethylene EIN3 jasmonate JAZs trichome WD-repeat/bHLH/MYB complexes

jasmonate-ZIM DOMAIN proteins engage Polycomb chromatin modifiers to modulate jasmonate signaling in Arabidopsis

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Molecular Plant 2021年第5期14卷 732-747页

作者： Zicong Li Xiao Luo Yang Ou Huijun Jiao Li Peng Xing Fu Alberto P.Macho Renyi Liu Yuehui He Shanghai Center for Plant Stress Biology Chinese Academy of Sciences Center for Excellence in Molecular Plant SciencesShanghai 201602China Ministry of Education Key Laboratory of Plant Development and Environmental Adaption Biology School of Life SciencesShandong UniversityQingdao 266237China Department of Biological Sciences National University of SingaporeSingapore 117543Singapore Peking University Institute of Advanced Agricultural Sciences WeifangShandong 261000China Center for Agroforestry Mega Data Sciences Haixia Institute of Science and TechnologyFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of Protein and Plant Gene Research Peking-Tsinghua Center for Life SciencesSchool of Advanced Agriculture SciencesPeking UniversityBeijing 100871China

jasmonate(JA)regulates various aspects of plant growth and development and stress responses,with prominent roles in male reproductive development and defenses against herbivores and necrotrophic pathogens.jasmonate-ZIM DOMAIN(JAZ)proteins are key regulators in the JA signaling pathway and function to repress the expression of JA-responsive genes.Here,we show that JAZ proteins directly interact with several chromatin-associated Polycomb proteins to mediate repressive chromatin modifications at JA-responsive genes and,thus,their transcriptional repression in Arabidopsis.Genetic analyses revealed that the developmental defects,including anther and pollen abnormalities,resulting from loss or block of JA signaling were partially rescued by loss of Polycomb protein-mediated chromatin silencing(Polycomb repression).We further found that JAZ-mediated transcriptional repression during anther and pollen development requires Polycomb proteins at four key Regulatory loci.Analysis of genome-wide occupancy of a Polycomb factor and transcriptome reprogramming in response to JA revealed that Polycomb repression is involved in the repression of various JA-responsive genes.Taken together,our study reveals an important chromatin-based mechanism for JAZ-mediated transcriptional repression and JA signaling in plants.

关键词： jasmonate JA response Polycomb proteins JAZ proteins anther development H3K27me3

jasmonate mediates salt-induced nicotine biosynthesis in tobacco(Nicotiana tabacum L.)

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植物分类与资源学报 2016年第2期38卷 146-152页

作者： Xiaodong Chen Xiaoming Zhang Aiqun Jia Gang Xu Hong Hu Xiangyang Hu Liwei Hu Key Laboratory for Plant Diversity and Biogeography of East Asia Kunming Institute of BotanyChinese Academy of Sciences School of Environmental and Biological Engineering Nanjing University of Science and Technology University of Chinese Academy of Sciences Laboratory of Tobacco Agriculture Zhengzhou Tobacco Research Institute of CNTC

jasmonate(JA),as an important signal,plays a key role in multiple processes of plant growth,development and stress response.Nicotine and related pyridine alkaloids in tobacco(Nicotiana tabacum L.) are essential secondary metabolites.Whether environmental factors control nicotine biosynthesis and the underlying mechanism remains previously unreported.Here,we applied physiological and biochemical approaches to investigate how salt stress affects nicotine biosynthesis in tobacco.We found that salt stress induced the biosynthesis of JA,which subsequently triggered the activation of JA-responsive gene expression and,ultimately,nicotine synthesis.Bioinformatics analysis revealed the existence of many Nt MYC2a-recognized G-box motifs in the promoter regions of Nt LOX,Nt AOS,Nt AOC and Nt OPR genes.Applying exogenous JA increased nicotine content,while suppressing JA biosynthesis reduced nicotine biosynthesis.Salt treatment could not efficiently induce nicotine biosynthesis in transgenic anti-COI1 tobacco plants.These results demonstrate that JA acts as the essential signal which triggers nicotine biosynthesis in tobacco after salt stress.

关键词： Tobacco jasmonate Salt stress Nicotine biosynthesis

jasmonate Signal Pathway in Arabidopsis

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Journal of Integrative Plant Biology 2007年第1期49卷 81-86页

作者： Xiao-Yi Shan Zhi-Long Wang Daoxin Xie Department of Biological Sciences and Biotechnology Tsinghua University Beijing 100084 China Temasek Life Science Laboratory National University of Singapore117604 Republic of Singapore

jasmonates （JAs）, which include jasmonic acid and its cyclopentane derivatives are synthesized from the octadecanoid pathway and widely distributed throughout the plant kingdom. JAs modulate the expression of numerous genes and mediate responses to stress, wounding, insect attack, pathogen infection, and UV damage. They also affect a variety of processes in many plant developmental processes. The JA signal pathway involves two important events： the biosynthesis of JA and the transduction of JA signal. Several important Arabidopsis mutants in jasmonate signal pathway were described in this review.

关键词： jasmonate SCF^COl1 Arabidopsis

Regulation of Stamen Development by Coordinated Actions of jasmonate, Auxin, and Gibberellin in Arabidopsis

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Molecular Plant 2013年第4期6卷 1065-1073页

作者： Susheng Song Tiancong Qi Huang Huang Daoxin Xie Tsinghua-Peking Center for Life Sciences MOE Key Laboratory of Bioinformatics School of Life Sciences Tsinghua University Beijing 100084 China

Proper stamen development is essential for plants to achieve their life cycles. Defects in stamen development will cause male sterility. A vast array of research efforts have been made to understand stamen developmental processes and reg- ulatory mechanisms over the past decades. It is so far reported that phytohormones, including jasmonate, auxin, gibberellin, brassinosteroid, and cytokinin, play essential roles in regulation of stamen development. This review will briefly summarize the molecular basis for coordinated regulation of stamen development by jasmonate, auxin, and gibberellin in Arabidopsis.

关键词： stamen jasmonate gibberellin auxin.

A patatin-like protein synergistically regulated by jasmonate and ethylene signaling pathways plays a negative role in Nicotiana attenuata resistance to Alternaria alternata

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Plant Diversity 2019年第1期41卷 7-12页

作者： Junbin Cheng Na Song Jinsong Wu Yunnan Key Laboratory for Wild Plant Resources Kunming Institute of Botany Chinese Academy of Sciences University of Chinese Academy of Sciences

Although patatin was initially identified as a major storage protein in potato tubers, patatin-like proteins(PLPs) have been recently reported to be widely present in many plant species and shown to be involved in plant-pathogen interactions. However, it is not clear whether PLPs are involved in Nicotiana attenuata resistance against the necrotrophic fungal pathogen, Alternaria alternata. In this study we identified a NaPLP gene, whose expression was highly elicited by A. alternata inoculation. Silencing NaPLP enhanced N. attenuata resistance to A. alternata, which was associated with higher induction levels of JA and ethylene biosynthetic genes, NaACS1, NaACO1 and NaLOX3. The induction of NaPLP expression by the fungus was abolished in JA-deficient plants and significantly reduced in ethylene-insensitive plants. In addition, NaPLP transcripts were highly induced by exogenous treatment with either methyl jasmonate(MeJA) or ethephon. Co-treatment with MeJA and ethephon led to a much higher induction level of NaPLP transcripts, and this synergistic induction was largely dependent on endogenous JA and ethylene signaling pathways. Thus, we conclude that the NaPLP gene is elicited by A. alternata via JA and ethylene signaling pathways in a synergistic way; however, unlike other JA-and ethylene-induced defense genes,NaPLP negatively affects plant resistance to the fungus likely by suppressing JA and ethylene biosynthetic gene expression.

关键词： Alternaria Ethylene jasmonate Necrotrophic fungal pathogen Nicotiana Plant resistance