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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 ***(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 *** 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

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 ***-ZIM DOMAIN(JAZ)proteins are key regulators in the JA signaling pathway and function to repress the expression of JA-responsive ***,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 *** 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 *** 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 *** 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 *** and related pyridine alkaloids in tobacco(Nicotiana tabacum L.) are essential secondary *** environmental factors control nicotine biosynthesis and the underlying mechanism remains previously ***,we applied physiological and biochemical approaches to investigate how salt stress affects nicotine biosynthesis in *** found that salt stress induced the biosynthesis of JA,which subsequently triggered the activation of JA-responsive gene expression and,ultimately,nicotine *** 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 *** exogenous JA increased nicotine content,while suppressing JA biosynthesis reduced nicotine *** treatment could not efficiently induce nicotine biosynthesis in transgenic anti-COI1 tobacco *** 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

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.

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 *** 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 ***,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 *** 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

Tobacco Transcription Factors NtMYC2a and NtMYC2b Form Nuclear Complexes with the NtJAZ1 Repressor and Regulate Multiple jasmonate-lnducible Steps in Nicotine Biosynthesis

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Molecular Plant 2012年第1期5卷 73-84页

作者： Hong-Bo Zhang Marta T. Bokowiec Paul J. Rushton Sheng-Cheng Han Michael R Timko Department of Biology University of Virginia Charlottesville VA 22904 USA College of Agronomy and Biotechnology Southwest University Chongqing 400715 China Department of Biology and Microbiology South Dakota State University Brookings SD 57007 USA College of Life Science Beijing NormalUniversity Beijing 100875 China

Biotic and abiotic stress lead to elevated levels of jasmonic acid （JA） and its derivatives and activation of the biosynthesis of nicotine and related pyridine alkaloids in cultivated tobacco （Nicotiana tabacum L.）. Among the JA- responsive genes is NtPMTla, encoding putrescine N-methyl transferase, a key regulatory enzyme in nicotine formation. We have characterized three genes （NtMYC2a, b, c） encoding basic helix-loop-helix （bHLH） transcription factors （TFs） whose expression is rapidly induced by JA and that specifically activate JA-inducible NtPMTla expression by binding a G-box motif within the NtPMTla promoter in in vivo and in vitro assays. Using split-YFP assays, we further show that, in the absence of JA, NtMYC2a and NtMYC2b are present as nuclear complexes with the NtJAZ1 repressor. RNA interference （RNAi）-mediated knockdown of NtMYC2a and NtMYC2b expression results in significant decreases in JA-inducible NtPMTla transcript levels, as well as reduced levels of transcripts encoding other enzymes involved in nicotine and minor alkaloid biosynthesis, in- cluding an 80-90% reduction in the level of transcripts encoding the putative nicotine synthase gene NtA662. In contrast, ectopic overexpression of NtMYC2a and NtMYC2b had no effect on NtPMTla expression in the presence or absence of exogenously added JA. These data suggest that NtMYC2a, b, c are required components of JA-inducible expression of multiple genes in the nicotine biosynthetic pathway and may act additively in the activation of JA responses.

关键词： COl1 jasmonate MYC2 nicotine tobacco.

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

Tasselseed5 encodes a cytochrome C oxidase that functions in sex determination by affecting jasmonate catabolism in maize^FA

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Journal of Integrative Plant Biology 2020年第2期62卷 247-255页

作者： Fei Wang Zhenjiang Yuan Zhiwei Zhao Caixia Li Xin Zhang Huafeng Liang Yawen Liu Qian Xu Hongtao Liu National Key Laboratory of Plant Molecular Genetics CAS Center for Excellence in Molecular Plant SciencesInstitute of Plant Physiology and EcologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai 200032China University of Chinese Academy of Sciences Shanghai 200032China Key Laboratory of Plant Stress Biology School of Life SciencesHenan UniversityKaifeng 475004China College of Agronomy Shandong Agricultural UniversityTaian 271018China

Maize(Zea mays L.)is a monoecious grass plant in which mature male and female florets form the tassel and ear,*** is often used as a model plant to study flower *** maize tassel seed mutants,such as the recessive mutants tasselseed1(ts1)and tasselseed2(ts2),exhibit a reversal in sex determination,which leads to the generation of seeds in *** phenotype of the dominant mutant,Tasselseed5(Ts5),is similar to that of ***,we positionally cloned the underlying gene of Ts5 and characterized its *** show that the GRMZM2G177668 gene is overexpressed in *** gene encodes a cytochrome C oxidase,which catalyzes the transformation of jasmonoyl-L-isoleucine(JA-Ile)to 12 OH-JA-Ile during jasmonic acid *** with this finding,no JA-Ile peak was detected in Ts5 tassels during the sex determination period,unlike in the wild *** maize plants overexpressing GRMZM2G177668 exhibited a tassel-seed phenotype similar to that of *** results indicate that the JA-Ile peak in tassels is critical for sex determination and that the Ts5 mutant phenotype results from the disruption of this peak in tassels during sex determination.

关键词： Tasselseed5 sex determination affecting jasmonate catabolism

Transcription Factor WRKY70 Displays Important but No Indispensable Roles in jasmonate and Salicylic Acid Signaling

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Journal of Integrative Plant Biology 2008年第5期50卷 630-637页

作者： Chun-Mei Ren Qi Zhu Bi-Da Gao Shao-Ying Ke Wan-Cong Yu Dao-Xin Xie Wen Peng College of Bioscience and Biotechnology Hunan Agncultural University Changsha 410128 China Crop Gene Engineering Key Laboratory of Hunan Province Hunan Agncultural University Changsha 410128 China College of Horticulture and Gardening Hunan Agncultural University Changsha 410128 China College of Bio-Safety Science and Technology Hunan Agricultural University Changsha 410128 China Department of Biological Sciences Tangshan Normal College Tangshan 063000 China Ministry of Education Key Laboratory of Bioinformatics Department of Biological Sciences and Biotechnology Tsinghua University Beijing 100084 China

The transcription factor WRKY70 was previously reported to be a common component in salicylic acid （SA） and jasmonate （JA） mediated signal pathways in Arabidopsis. Here, we present that the inactivation of the WRKY70 gene in wrky70-1 mutant does not alter the responses of both JA and SA, and that wrky70 mutation is unable to restore the coil mutant in JA responses. However, overexpression of WRKY70 reduces JA responses such as expression of JA-induced genes and JA-inhibitory root growth, and activates expression of SA-inducible PR1. These data indicate that the WRKY70 is important but not indispensable for JA and SA signaling, and that other regulators may display the redundant role with WRKY70 in modulation of JA and SA responses in Arabidopsis. Furthermore, we showed that JA inhibits expression of WRKY70 and PR1 by both COi1-dependent and COi1-independent pathways.

关键词： Arabidopsis COl 1 jasmonate salicylic acid signaling WRKY70.