151
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Huang Y, Wang S, Shi L, Xu F. JASMONATE RESISTANT 1 negatively regulates root growth under boron deficiency in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:3108-3121. [PMID: 33530106 DOI: 10.1093/jxb/erab041] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 01/28/2021] [Indexed: 06/12/2023]
Abstract
Boron (B) is an essential micronutrient for plant growth and development. Jasmonic acid (JA) plays pivotal roles in plant growth, but the underlying molecular mechanism of JA involvement in B-deficiency-induced root growth inhibition is yet to be explored. In this study, we investigated the response of JA to B deficiency and the mechanism of JAR1-dependent JA signaling in root growth inhibition under B deficiency in Arabidopsis. B deficiency enhanced JA signaling in roots, and root growth inhibition was partially restored by JA biosynthesis inhibition. The jar1-1 (jasmonate-resistant 1, JAR1) mutant, and mutants of coronatine-insensitive 1 (coi1-2) and myc2 defective in JA signaling showed insensitivity to B deficiency. The ethylene-overproduction mutant eto1 and ethylene-insensitive mutant etr1 showed sensitivity and insensitivity to B deficiency, respectively, suggesting that ethylene is involved in the inhibition of primary root growth under B deficiency. Furthermore, after a decline in levels of EIN3, which may contribute to root growth, ethylene signaling was weakened in the jar1-1 mutant root under B deficiency. Under B deficiency, B concentrations were increased in the roots and shoots of the jar1-1 mutant, owing to the large root system and its activity. Therefore, our findings revealed that JA, which is involved in the inhibition of root growth under B deficiency, is regulated by JAR1-activated JA and ethylene signaling pathways.
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Affiliation(s)
- Yupu Huang
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Microelement Research Center, College of Resources & Environment, Huazhong Agricultural University, Wuhan, China
| | - Sheliang Wang
- Microelement Research Center, College of Resources & Environment, Huazhong Agricultural University, Wuhan, China
| | - Lei Shi
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Microelement Research Center, College of Resources & Environment, Huazhong Agricultural University, Wuhan, China
| | - Fangsen Xu
- National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan, China
- Microelement Research Center, College of Resources & Environment, Huazhong Agricultural University, Wuhan, China
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152
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Suzuki K, Takaoka Y, Ueda M. Rational design of a stapled JAZ9 peptide inhibiting protein-protein interaction of a plant transcription factor. RSC Chem Biol 2021; 2:499-502. [PMID: 34458795 PMCID: PMC8341433 DOI: 10.1039/d0cb00204f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/26/2021] [Accepted: 12/14/2020] [Indexed: 01/06/2023] Open
Abstract
We herein describe the development of a stapled peptide inhibitor for a jasmonate-related transcription factor. The designed peptide selectively inhibited MYCs, master-regulators of jasmonate signaling, and selectively suppressed MYC-mediated gene expression in Arabidopsis thaliana. It is proposed as a novel chemical tool for the analysis of MYC related jasmoante signaling. A rationally designed stapled JAZ peptide selectively inhibited MYCs, master-regulators of the jasmonate signaling in Arabidopsis thaliana. It is proposed as a novel chemical tool for the analysis of MYC related jasmonate signaling.![]()
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Affiliation(s)
- Kaho Suzuki
- Graduate School of Science, Tohoku University 6-3, Aramaki-Aza-Aoba Aoba-ku Sendai 980-8578 Japan
| | - Yousuke Takaoka
- Graduate School of Science, Tohoku University 6-3, Aramaki-Aza-Aoba Aoba-ku Sendai 980-8578 Japan
| | - Minoru Ueda
- Graduate School of Science, Tohoku University 6-3, Aramaki-Aza-Aoba Aoba-ku Sendai 980-8578 Japan .,Graduate School of Life Science, Tohoku University 6-3, Aramaki-Aza-Aoba Aoba-ku Sendai 980-8578 Japan
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153
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Maki Y, Soejima H, Kitamura T, Sugiyama T, Sato T, Watahiki MK, Yamaguchi J. 3-Phenyllactic acid, a root-promoting substance isolated from Bokashi fertilizer, exhibits synergistic effects with tryptophan. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2021; 38:9-16. [PMID: 34177319 PMCID: PMC8215458 DOI: 10.5511/plantbiotechnology.20.0727a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 07/27/2020] [Indexed: 06/13/2023]
Abstract
Bokashi fertilizer, an organic fertilizer made of plant residue, has been used in Japan not only to fertilize plants but to regulate their growth. Lactic acid bacteria have been found to play an important role in the fermentation process of Bokashi, but the relationship between these bacteria and plant growth activity has not been clarified. Using the adzuki rooting assay, this study identified 3-phenyllactic acid (PLA) produced by lactic acid bacteria as a root promoting compound in Bokashi. PLA showed synergistic effect with tryptophan, but no stem elongation activity. Lactic acid bacteria produced equal quantities of the L- and D-forms of PLA, which have similar root promoting activity. PLA did not significantly affect the amount of endogenous indole-3-acetic acid (IAA), although the chemical structure of PLA is highly similar to that of L-2-aminooxy-3-phenypropionic acid (L-AOPP), which inhibits IAA biosynthesis. These results indicate that the root promoting activity of PLA is not simply due to its increase in the amount of active auxin.
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Affiliation(s)
- Yuko Maki
- Snow Brand Seed Co. Ltd., 1066-5 Horonai, Naganuma, Hokkaido 069-1464, Japan
| | - Hiroshi Soejima
- Snow Brand Seed Co. Ltd., 1066-5 Horonai, Naganuma, Hokkaido 069-1464, Japan
| | - Toru Kitamura
- Snow Brand Seed Co. Ltd., 1066-5 Horonai, Naganuma, Hokkaido 069-1464, Japan
| | - Tamizi Sugiyama
- Department of Agricultural Chemistry, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan
| | - Takeo Sato
- Faculty of Science and Graduate School of Life Science, Hokkaido University, N10-W8 Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Masaaki K. Watahiki
- Faculty of Science and Graduate School of Life Science, Hokkaido University, N10-W8 Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Junji Yamaguchi
- Faculty of Science and Graduate School of Life Science, Hokkaido University, N10-W8 Kita-ku, Sapporo, Hokkaido 060-0810, Japan
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154
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Jasmonates and Plant Salt Stress: Molecular Players, Physiological Effects, and Improving Tolerance by Using Genome-Associated Tools. Int J Mol Sci 2021; 22:ijms22063082. [PMID: 33802953 PMCID: PMC8002660 DOI: 10.3390/ijms22063082] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/11/2021] [Accepted: 03/15/2021] [Indexed: 12/18/2022] Open
Abstract
Soil salinity is one of the most limiting stresses for crop productivity and quality worldwide. In this sense, jasmonates (JAs) have emerged as phytohormones that play essential roles in mediating plant response to abiotic stresses, including salt stress. Here, we reviewed the mechanisms underlying the activation and response of the JA-biosynthesis and JA-signaling pathways under saline conditions in Arabidopsis and several crops. In this sense, molecular components of JA-signaling such as MYC2 transcription factor and JASMONATE ZIM-DOMAIN (JAZ) repressors are key players for the JA-associated response. Moreover, we review the antagonist and synergistic effects between JA and other hormones such as abscisic acid (ABA). From an applied point of view, several reports have shown that exogenous JA applications increase the antioxidant response in plants to alleviate salt stress. Finally, we discuss the latest advances in genomic techniques for the improvement of crop tolerance to salt stress with a focus on jasmonates.
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155
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Liu H, Timko MP. Jasmonic Acid Signaling and Molecular Crosstalk with Other Phytohormones. Int J Mol Sci 2021; 22:ijms22062914. [PMID: 33805647 PMCID: PMC8000993 DOI: 10.3390/ijms22062914] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/10/2021] [Accepted: 03/11/2021] [Indexed: 12/15/2022] Open
Abstract
Plants continually monitor their innate developmental status and external environment and make adjustments to balance growth, differentiation and stress responses using a complex and highly interconnected regulatory network composed of various signaling molecules and regulatory proteins. Phytohormones are an essential group of signaling molecules that work through a variety of different pathways conferring plasticity to adapt to the everchanging developmental and environmental cues. Of these, jasmonic acid (JA), a lipid-derived molecule, plays an essential function in controlling many different plant developmental and stress responses. In the past decades, significant progress has been made in our understanding of the molecular mechanisms that underlie JA metabolism, perception, signal transduction and its crosstalk with other phytohormone signaling pathways. In this review, we discuss the JA signaling pathways starting from its biosynthesis to JA-responsive gene expression, highlighting recent advances made in defining the key transcription factors and transcriptional regulatory proteins involved. We also discuss the nature and degree of crosstalk between JA and other phytohormone signaling pathways, highlighting recent breakthroughs that broaden our knowledge of the molecular bases underlying JA-regulated processes during plant development and biotic stress responses.
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156
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Kimberlin A, Holtsclaw RE, Koo AJ. Differential Regulation of the Ribosomal Association of mRNA Transcripts in an Arabidopsis Mutant Defective in Jasmonate-Dependent Wound Response. FRONTIERS IN PLANT SCIENCE 2021; 12:637959. [PMID: 33777072 PMCID: PMC7990880 DOI: 10.3389/fpls.2021.637959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 02/01/2021] [Indexed: 06/02/2023]
Abstract
Jasmonoyl-L-isoleucine (JA-Ile) is a powerful oxylipin responsible for the genome-wide transcriptional reprogramming in plants that results in major physiological shifts from growth to defense. The double T-DNA insertion Arabidopsis mutant, cyp94b1cyp94b3 (b1b3), defective in cytochrome p450s, CYP94B1 and CYP94B3, which are responsible for oxidizing JA-Ile, accumulates several fold higher levels of JA-Ile yet displays dampened JA-Ile-dependent wound responses-the opposite of what is expected. Transcriptomic and proteomic analyses showed that while the transcriptional response to wounding was largely unchanged in b1b3 compared to wild type (WT), many proteins were found to be significantly reduced in the mutant, which was verified by immunoblot analyses of marker proteins. To understand this protein phenotype and their hypothesized contribution to the b1b3 phenotypes, wounded rosette leaf samples from both WT and b1b3 were subject to a translating ribosome affinity purification RNA sequencing analysis. More than 1,600 genes whose transcripts do not change in abundance by wounding changed their association with the ribosomes after wounding in WT leaves. Consistent with previous observations, the total pool of mRNA transcripts was similar between WT and b1b3; however, the ribosome-associated pool of transcripts was changed significantly. Most notably, fewer transcripts were associated with the ribosome pool in b1b3 than in WT, potentially explaining the reduction of many proteins in the mutant. Among those genes with fewer ribosome-associated transcripts in b1b3 were genes relating to stress response, specialized metabolism, protein metabolism, ribosomal subunits, and transcription factors, consistent with the biochemical phenotypes of the mutant. These results show previously unrecognized regulations at the translational level that are affected by misregulation of JA homeostasis during the wound response in plants.
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Affiliation(s)
- Athen Kimberlin
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
| | - Rebekah E. Holtsclaw
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
| | - Abraham J. Koo
- Department of Biochemistry, University of Missouri, Columbia, MO, United States
- Interdisciplinary Plant Group, University of Missouri, Columbia, MO, United States
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157
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Chen J, Yang H, Ma S, Yao R, Huang X, Yan J, Xie D. HbCOI1 perceives jasmonate to trigger signal transduction in Hevea brasiliensis. TREE PHYSIOLOGY 2021; 41:460-471. [PMID: 33032325 DOI: 10.1093/treephys/tpaa124] [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: 04/21/2020] [Revised: 08/07/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Natural rubber, a strategically essential raw material used in manufacturing throughout the world, is produced from coagulated and refined latex of rubber tree (Hevea brasiliensis). It is known that phytohormone jasmonate (JA) plays an essential role in regulating latex biosynthesis. However, it is unclear how the JA signal is sensed in a rubber tree. Here, we showed that H. brasiliensis CORONATINE-INSENSITIVE 1 (HbCOI1) acts as a receptor that perceives JA to recruit H. brasiliensis JASMONATE ZIM DOMAIN1 (HbJAZ1) for signal transduction. We found that HbCOI1 restores male sterility and JA responses of the coi1-1 mutant in Arabidopsis. The identification of a JA receptor in the rubber tree is essential for elucidating the molecular mechanisms underlying JA-regulated latex biosynthesis. Our results elucidate the mechanism of JA perception in H. brasiliensis and also provide an efficient strategy to identify JA receptors in woody plants.
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Affiliation(s)
- Juan Chen
- MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Haitao Yang
- MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Sui Ma
- MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Agriculture, Hainan University, Haikou 570100, China
| | - Ruifeng Yao
- MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, College of Biology, Hunan University, Changsha 410082, China
| | - Xi Huang
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Agriculture, Hainan University, Haikou 570100, China
| | - Jianbin Yan
- MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Daoxin Xie
- MOE Key Laboratory of Bioinformatics, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
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158
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Li R, Jin J, Xu J, Wang L, Li J, Lou Y, Baldwin IT. Long non-coding RNAs associate with jasmonate-mediated plant defence against herbivores. PLANT, CELL & ENVIRONMENT 2021; 44:982-994. [PMID: 33190219 DOI: 10.1111/pce.13952] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/12/2020] [Accepted: 11/12/2020] [Indexed: 06/11/2023]
Abstract
Long non-coding RNA (lncRNA) are important regulators of many biological processes in plants, including defence against pathogens; whether lncRNAs mediate defence against herbivore attack is yet to be explored. With wild tobacco, Nicotiana attenuata, and its well-characterized interactions with herbivores, we identified a total of 1,290 significantly up- or down-regulated lncRNAs in response to a precise herbivore elicitation treatment. Of these, long intergenic non-coding RNAs (lincRNAs) were the most abundant. Based on their expression patterns, these up-regulated lincRNAs were classified as early (<1 hr) or late (>3 hr) responders. The early responding lincRNAs had accumulation patterns that tracked the herbivore-elicited burst of bioactive jasmonates (JAs) and the expression of regulator genes in JA signalling which regulate plant defences against herbivores. Silencing two of these early responders in N. attenuata (JAL1 and JAL3) significantly attenuated the accumulation of JAs, JA-mediated defensives and the plant's resistance to M. sexta attack, suggesting roles in regulating JA-mediated plant defence. By lincRNA sequencing of JA-deficient lines, many late responder lincRNAs were found to be transcriptionally regulated by JA signalling. This study uncovers a new role of lncRNAs in JA-mediated herbivore resistance.
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Affiliation(s)
- Ran Li
- Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Jingjing Jin
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Jena, Germany
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
| | - Jie Xu
- Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Lanlan Wang
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Jena, Germany
- Institute of Virology and Biotechnology, Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - Jiancai Li
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Jena, Germany
| | - Yonggen Lou
- Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Ian T Baldwin
- Department of Molecular Ecology, Max Planck Institute for Chemical Ecology, Jena, Germany
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159
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Schneider M, Gonzalez N, Pauwels L, Inzé D, Baekelandt A. The PEAPOD Pathway and Its Potential To Improve Crop Yield. TRENDS IN PLANT SCIENCE 2021; 26:220-236. [PMID: 33309102 DOI: 10.1016/j.tplants.2020.10.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/26/2020] [Accepted: 10/29/2020] [Indexed: 05/18/2023]
Abstract
A key strategy to increase plant productivity is to improve intrinsic organ growth. Some of the regulatory networks underlying organ growth and development, as well as the interconnections between these networks, are highly conserved. An example of such a growth-regulatory module with a highly conserved role in final organ size and shape determination in eudicot species is the PEAPOD (PPD)/KINASE-INDUCIBLE DOMAIN INTERACTING (KIX)/STERILE APETALA (SAP) module. We review the proteins constituting the PPD pathway and their roles in different plant developmental processes, and explore options for future research. We also speculate on strategies to exploit knowledge about the PPD pathway for targeted yield improvement to engineer crop traits of agronomic interest, such as leaf, fruit, and seed size.
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Affiliation(s)
- Michele Schneider
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Vlaams Instituut voor Biotechnologie (VIB) Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Nathalie Gonzalez
- Institut National de Recherche pour l'Agriculture, l'Alimentation, et l'Environnement (INRAE), Biologie du Fruit et Pathologie (BFP), Université de Bordeaux, 33882 Villenave d'Ornon, France
| | - Laurens Pauwels
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Vlaams Instituut voor Biotechnologie (VIB) Center for Plant Systems Biology, 9052 Ghent, Belgium
| | - Dirk Inzé
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Vlaams Instituut voor Biotechnologie (VIB) Center for Plant Systems Biology, 9052 Ghent, Belgium.
| | - Alexandra Baekelandt
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium; Vlaams Instituut voor Biotechnologie (VIB) Center for Plant Systems Biology, 9052 Ghent, Belgium
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160
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Kolupaev YE, Yastreb TO. Jasmonate Signaling and Plant Adaptation to Abiotic Stressors (Review). APPL BIOCHEM MICRO+ 2021. [DOI: 10.1134/s0003683821010117] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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161
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Regulation of Sixth Seminal Root Formation by Jasmonate in Triticum aestivum L. PLANTS 2021; 10:plants10020219. [PMID: 33498738 PMCID: PMC7911905 DOI: 10.3390/plants10020219] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/18/2021] [Accepted: 01/20/2021] [Indexed: 01/08/2023]
Abstract
A well-developed root system is an important characteristic of crop plants, which largely determines their productivity, especially under conditions of water and nutrients deficiency. Being Poaceous, wheat has more than one seminal root. The number of grown seminal roots varies in different wheat accessions and is regulated by environmental factors. Currently, the molecular mechanisms determining the number of germinated seminal roots remain poorly understood. The analysis of the root system development in germinating seeds of genetically modified hexaploid wheat plants with altered activity of jasmonate biosynthesis pathway and seeds exogenously treated with methyl jasmonate revealed the role of jasmonates in the regulation of sixth seminal root development. This regulatory effect strongly depends on the jasmonate concentration and the duration of the exposure to this hormone. The maximum stimulatory effect of exogenously applied methyl jasmonate on the formation of the sixth seminal root was achieved at 200 μM concentration after 48 h of treatment. Further increase in concentration and exposure time does not increase the stimulating effect. While 95% of non-transgenic plants under non-stress conditions possess five or fewer seminal roots, the number of plants with developed sixth seminal root reaches up to 100% when selected transgenic lines are treated with methyl jasmonate.
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162
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Wang J, Sakurai H, Kato N, Kaji T, Ueda M. Syntheses of dinor-cis/iso-12-oxo-phytodienoic acid (dn-cis/iso-OPDAs), ancestral jasmonate phytohormones of the bryophyte Marchantia polymorpha L., and their catabolites. Sci Rep 2021; 11:2033. [PMID: 33479365 PMCID: PMC7820489 DOI: 10.1038/s41598-021-81575-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/08/2021] [Indexed: 12/27/2022] Open
Abstract
In recent years, the biology of the evolutionary origin of phytohormone signaling has made significant progress. Among them, the ligand-receptor co-evolution found in jasmonate signaling has attracted the attention of plant scientists. Dinor-cis-12-oxo-phytodienoic acid (dn-cis-OPDA, 4) and dn-iso-OPDA (5) are ancestral plant hormones of the bryophyte Marchantia polymorpha L. We succeeded in the first practical synthetic supply of these hormones as well as their possible catabolites. These compounds are expected to be useful in the study of ancestral jasmonate signaling in bryophytes.
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Affiliation(s)
- Jianxin Wang
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - Haruka Sakurai
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - Nobuki Kato
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan.
| | - Takuya Kaji
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - Minoru Ueda
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan.
- Department of Molecular and Chemical Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, 980-8578, Japan.
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163
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Mitreiter S, Gigolashvili T. Regulation of glucosinolate biosynthesis. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:70-91. [PMID: 33313802 DOI: 10.1093/jxb/eraa479] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 05/18/2023]
Abstract
Glucosinolates are secondary defense metabolites produced by plants of the order Brassicales, which includes the model species Arabidopsis and many crop species. In the past 13 years, the regulation of glucosinolate synthesis in plants has been intensively studied, with recent research revealing complex molecular mechanisms that connect glucosinolate production with responses to other central pathways. In this review, we discuss how the regulation of glucosinolate biosynthesis is ecologically relevant for plants, how it is controlled by transcription factors, and how this transcriptional machinery interacts with hormonal, environmental, and epigenetic mechanisms. We present the central players in glucosinolate regulation, MYB and basic helix-loop-helix transcription factors, as well as the plant hormone jasmonate, which together with other hormones and environmental signals allow the coordinated and rapid regulation of glucosinolate genes. Furthermore, we highlight the regulatory connections between glucosinolates, auxin, and sulfur metabolism and discuss emerging insights and open questions on the regulation of glucosinolate biosynthesis.
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Affiliation(s)
- Simon Mitreiter
- Institute for Plant Sciences and Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Cologne, Germany
| | - Tamara Gigolashvili
- Institute for Plant Sciences and Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Cologne, Germany
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164
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Takeuchi J, Fukui K, Seto Y, Takaoka Y, Okamoto M. Ligand-receptor interactions in plant hormone signaling. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 105:290-306. [PMID: 33278046 DOI: 10.1111/tpj.15115] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 11/23/2020] [Accepted: 11/30/2020] [Indexed: 05/28/2023]
Abstract
Small-molecule plant hormones principally control plant growth, development, differentiation, and environmental responses. Nine types of plant hormones are ubiquitous in angiosperms, and the molecular mechanisms of their hormone actions have been elucidated during the last two decades by genomic decoding of model plants with genetic mutants. In particular, the discovery of hormone receptors has greatly contributed to the understanding of signal transduction systems. The three-dimensional structure of the ligand-receptor complex has been determined for eight of the nine hormones by X-ray crystal structure analysis, and ligand perception mechanisms have been revealed at the atomic level. Collective research has revealed the molecular function of plant hormones that act as either molecular glue or an allosteric regulator for activation of receptors. In this review, we present an overview of the respective hormone signal transduction and describe the structural bases of ligand-receptor interactions.
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Affiliation(s)
- Jun Takeuchi
- Faculty of Agriculture, Shizuoka University, Shizuoka, 422-8529, Japan
| | - Kosuke Fukui
- Department of Biochemistry, Okayama University of Science, 1-1 Ridai-cho, Okayama, 700-0005, Japan
| | - Yoshiya Seto
- Department of Agricultural Chemistry, School of Agriculture, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa, 214-8571, Japan
| | - Yousuke Takaoka
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - Masanori Okamoto
- Center for Bioscience Research and Education, Utsunomiya University, 350 Mine-cho, Utsunomiya, Tochigi, 321-8505, Japan
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165
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Aerts N, Pereira Mendes M, Van Wees SCM. Multiple levels of crosstalk in hormone networks regulating plant defense. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 105:489-504. [PMID: 33617121 PMCID: PMC7898868 DOI: 10.1111/tpj.15124] [Citation(s) in RCA: 146] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 11/21/2020] [Accepted: 11/30/2020] [Indexed: 05/03/2023]
Abstract
Plant hormones are essential for regulating the interactions between plants and their complex biotic and abiotic environments. Each hormone initiates a specific molecular pathway and these different hormone pathways are integrated in a complex network of synergistic, antagonistic and additive interactions. This inter-pathway communication is called hormone crosstalk. By influencing the immune network topology, hormone crosstalk is essential for tailoring plant responses to diverse microbes and insects in diverse environmental and internal contexts. Crosstalk provides robustness to the immune system but also drives specificity of induced defense responses against the plethora of biotic interactors. Recent advances in dry-lab and wet-lab techniques have greatly enhanced our understanding of the broad-scale effects of hormone crosstalk on immune network functioning and have revealed underlying principles of crosstalk mechanisms. Molecular studies have demonstrated that hormone crosstalk is modulated at multiple levels of regulation, such as by affecting protein stability, gene transcription and hormone homeostasis. These new insights into hormone crosstalk regulation of plant defense are reviewed here, with a focus on crosstalk acting on the jasmonic acid pathway in Arabidopsis thaliana, highlighting the transcription factors MYC2 and ORA59 as major targets for modulation by other hormones.
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Affiliation(s)
- Niels Aerts
- Plant‐Microbe InteractionsDepartment of BiologyScience4LifeUtrecht UniversityP.O. Box 800.56Utrecht3408 TBThe Netherlands
| | - Marciel Pereira Mendes
- Plant‐Microbe InteractionsDepartment of BiologyScience4LifeUtrecht UniversityP.O. Box 800.56Utrecht3408 TBThe Netherlands
| | - Saskia C. M. Van Wees
- Plant‐Microbe InteractionsDepartment of BiologyScience4LifeUtrecht UniversityP.O. Box 800.56Utrecht3408 TBThe Netherlands
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166
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Lv Z, Hao L, Ma B, He Z, Luo Y, Xin Y, He N. Ciboria carunculoides Suppresses Mulberry Immune Responses Through Regulation of Salicylic Acid Signaling. FRONTIERS IN PLANT SCIENCE 2021; 12:658590. [PMID: 33889168 PMCID: PMC8057602 DOI: 10.3389/fpls.2021.658590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/09/2021] [Indexed: 05/13/2023]
Abstract
Ciboria carunculoides is the dominant causal agent of mulberry sclerotial disease, and it is a necrotrophic fungal pathogen with a narrow host range that causes devastating diseases in mulberry fruit. However, little is known about the interaction between C. carunculoides and mulberry. Here, our transcriptome sequencing results showed that the transcription of genes in the secondary metabolism and defense-related hormone pathways were significantly altered in infected mulberry fruit. Due to the antimicrobial properties of proanthocyanidins (PAs), the activation of PA biosynthetic pathways contributes to defense against pathogens. Salicylic acid (SA) and jasmonic acid (JA) are major plant defense hormones. However, SA signaling and JA signaling are antagonistic to each other. Our results showed that SA signaling was activated, while JA signaling was inhibited, in mulberry fruit infected with C. carunculoides. Yet SA mediated responses are double-edged sword against necrotrophic pathogens, as SA not only activates systemic acquired resistance (SAR) but also suppresses JA signaling. We also show here that the small secreted protein CcSSP1 of C. carunculoides activates SA signaling by targeting pathogenesis-related protein 1 (PR1). These findings reveal that the infection strategy of C. carunculoides functions by regulating SA signaling to inhibit host defense responses.
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167
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Zhang L, Chen WS, Lv ZY, Sun WJ, Jiang R, Chen JF, Ying X. Phytohormones jasmonic acid, salicylic acid, gibberellins, and abscisic acid are key mediators of plant secondary metabolites. WORLD JOURNAL OF TRADITIONAL CHINESE MEDICINE 2021. [DOI: 10.4103/wjtcm.wjtcm_20_21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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168
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Inagaki H, Miyamoto K, Ando N, Murakami K, Sugisawa K, Morita S, Yumoto E, Teruya M, Uchida K, Kato N, Kaji T, Takaoka Y, Hojo Y, Shinya T, Galis I, Nozawa A, Sawasaki T, Nojiri H, Ueda M, Okada K. Deciphering OPDA Signaling Components in the Momilactone-Producing Moss Calohypnum plumiforme. FRONTIERS IN PLANT SCIENCE 2021; 12:688565. [PMID: 34135933 PMCID: PMC8201998 DOI: 10.3389/fpls.2021.688565] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/03/2021] [Indexed: 05/17/2023]
Abstract
Jasmonic acid (JA) and its biologically active form jasmonoyl-L-isoleucine (JA-Ile) regulate defense responses to various environmental stresses and developmental processes in plants. JA and JA-Ile are synthesized from α-linolenic acids derived from membrane lipids via 12-oxo-phytodienoic acid (OPDA). In the presence of JA-Ile, the COI1 receptor physically interacts with JAZ repressors, leading to their degradation, resulting in the transcription of JA-responsive genes by MYC transcription factors. Although the biosynthesis of JA-Ile is conserved in vascular plants, it is not recognized by COI1 in bryophytes and is not biologically active. In the liverwort Marchantia polymorpha, dinor-OPDA (dn-OPDA), a homolog of OPDA with two fewer carbons, and its isomer dn-iso-OPDA accumulate after wounding and are recognized by COI1 to activate downstream signaling. The moss Calohypnum plumiforme produces the antimicrobial-specialized metabolites, momilactones. It has been reported that JA and JA-Ile are not detected in C. plumiforme and that OPDA, but not JA, can induce momilactone accumulation and the expression of these biosynthetic genes, suggesting that OPDA or its derivative is a biologically active molecule in C. plumiforme that induces chemical defense. In the present study, we investigated the biological functions of OPDA and its derivatives in C. plumiforme. Searching for the components potentially involving oxylipin signaling from transcriptomic and genomic data revealed that two COI1, three JAZ, and two MYC genes were present. Quantification analyses revealed that OPDA and its isomer iso-OPDA accumulated in larger amounts than dn-OPDA and dn-iso-OPDA after wounding. Moreover, exogenously applied OPDA, dn-OPDA, or dn-iso-OPDA induced the transcription of JAZ genes. These results imply that OPDA, dn-OPDA, and/or their isomers potentially act as biologically active molecules to induce the signaling downstream of COI1-JAZ. Furthermore, co-immunoprecipitation analysis showed the physical interaction between JAZs and MYCs, indicating the functional conservation of JAZs in C. plumiforme with other plants. These results suggest that COI1-JAZ-MYC mediated signaling is conserved and functional in C. plumiforme.
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Affiliation(s)
- Hideo Inagaki
- Graduate School of Science and Engineering, Teikyo University, Utsunomiya, Japan
| | - Koji Miyamoto
- Graduate School of Science and Engineering, Teikyo University, Utsunomiya, Japan
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, Utsunomiya, Japan
- *Correspondence: Koji Miyamoto,
| | - Noriko Ando
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, Utsunomiya, Japan
| | - Kohei Murakami
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, Utsunomiya, Japan
| | - Koki Sugisawa
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, Utsunomiya, Japan
| | - Shion Morita
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, Utsunomiya, Japan
| | - Emi Yumoto
- Advanced Instrumental Analysis Center, Teikyo University, Utsunomiya, Japan
| | - Miyu Teruya
- Agro-Biotechnology Research Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Kenichi Uchida
- Graduate School of Science and Engineering, Teikyo University, Utsunomiya, Japan
- Department of Biosciences, Faculty of Science and Engineering, Teikyo University, Utsunomiya, Japan
- Advanced Instrumental Analysis Center, Teikyo University, Utsunomiya, Japan
| | - Nobuki Kato
- Graduate School of Science, Tohoku University, Sendai, Japan
| | - Takuya Kaji
- Graduate School of Science, Tohoku University, Sendai, Japan
| | - Yousuke Takaoka
- Graduate School of Science, Tohoku University, Sendai, Japan
| | - Yuko Hojo
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Tomonori Shinya
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Ivan Galis
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Akira Nozawa
- Proteo-Science Center, Ehime University, Matsuyama, Japan
| | | | - Hideaki Nojiri
- Agro-Biotechnology Research Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
- Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan
| | - Minoru Ueda
- Graduate School of Science, Tohoku University, Sendai, Japan
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Kazunori Okada
- Agro-Biotechnology Research Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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169
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Chen YJ, Yang XX, Li WC, Zhao SQ. Knockdown of the DUF647 family member RUS4 impairs stamen development and pollen maturation in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 301:110645. [PMID: 33218621 DOI: 10.1016/j.plantsci.2020.110645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 08/21/2020] [Accepted: 08/26/2020] [Indexed: 06/11/2023]
Abstract
ROOT UV-B SENSITIVE4 (RUS4) encodes a Domain of Unknown Function647 (DUF647) protein, whose function is poorly understood. We have previously shown the artificial microRNA knockdown Arabidopsis RUS4 plants, referred to as amiR-RUS4, have severely reduced male fertility with a defect in anther dehiscence. Here, we show that amiR-RUS4 plants are also defective in pollen maturation and germination. Promoter-reporter analysis shows that RUS4 is highly expressed in tapetal layer, developing microspores, mature and germinating pollen, strongly suggesting its role in the process of pollen maturation. As the translational RUS4-GFP fusion protein has been localized to the chloroplasts where the first step of jasmonic acid (JA) biosynthesis takes place, leading to the hypothesis that RUS4 may be involved in JA-mediated stamen development. We show that expression of several JA metabolic genes increased markedly in flower buds of the amiR-RUS4 plants compared to that of the wild-type. We further show that transcript abundance of a clade of the JA-responsive MYB transcript factor genes, especially MYB108, reduced significantly in stamens of amiR-RUS4 plants relative to the wild-type; these MYB transcript factors have been shown to be required for JA-mediated stamen and pollen maturation. Our data suggest that RUS4 may play a role in coordinating anther dehiscence and pollen maturation by affecting the expression of JA-related genes.
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Affiliation(s)
- Ya-Jie Chen
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, 030006, China
| | - Xiao-Xue Yang
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, 030006, China
| | - Wen-Chao Li
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, 030006, China
| | - Shu-Qing Zhao
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, 030006, China.
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170
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Lakehal A, Dob A, Rahneshan Z, Novák O, Escamez S, Alallaq S, Strnad M, Tuominen H, Bellini C. ETHYLENE RESPONSE FACTOR 115 integrates jasmonate and cytokinin signaling machineries to repress adventitious rooting in Arabidopsis. THE NEW PHYTOLOGIST 2020; 228:1611-1626. [PMID: 32634250 DOI: 10.1111/nph.16794] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 06/27/2020] [Indexed: 05/02/2023]
Abstract
Adventitious root initiation (ARI) is a de novo organogenesis program and a key adaptive trait in plants. Several hormones regulate ARI but the underlying genetic architecture that integrates the hormonal crosstalk governing this process remains largely elusive. In this study, we use genetics, genome editing, transcriptomics, hormone profiling and cell biological approaches to demonstrate a crucial role played by the APETALA2/ETHYLENE RESPONSE FACTOR 115 transcription factor. We demonstrate that ERF115 functions as a repressor of ARI by activating the cytokinin (CK) signaling machinery. We also demonstrate that ERF115 is transcriptionally activated by jasmonate (JA), an oxylipin-derived phytohormone, which represses ARI in NINJA-dependent and independent manners. Our data indicate that NINJA-dependent JA signaling in pericycle cells blocks early events of ARI. Altogether, our results reveal a previously unreported molecular network involving cooperative crosstalk between JA and CK machineries that represses ARI.
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Affiliation(s)
- Abdellah Lakehal
- Department of Plant Physiology, Umeå Plant Science Center, Umeå University, SE-90736, Umeå, Sweden
| | - Asma Dob
- Department of Plant Physiology, Umeå Plant Science Center, Umeå University, SE-90736, Umeå, Sweden
| | - Zahra Rahneshan
- Department of Plant Physiology, Umeå Plant Science Center, Umeå University, SE-90736, Umeå, Sweden
- Department of Biology, Faculty of Science, Shahid Bahonar University, Kerman, 76169-14111, Iran
| | - Ondřej Novák
- Laboratory of Growth Regulators, Faculty of Science, Palacký University and Institute of Experimental Botany, The Czech Academy of Sciences, 78371, Olomouc, Czech Republic
- Department of Forest Genetics and Physiology, Umeå Plant Science Center, Swedish Agriculture University, SE-90183, Umea, Sweden
| | - Sacha Escamez
- Department of Plant Physiology, Umeå Plant Science Center, Umeå University, SE-90736, Umeå, Sweden
| | - Sanaria Alallaq
- Department of Plant Physiology, Umeå Plant Science Center, Umeå University, SE-90736, Umeå, Sweden
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Faculty of Science, Palacký University and Institute of Experimental Botany, The Czech Academy of Sciences, 78371, Olomouc, Czech Republic
| | - Hannele Tuominen
- Department of Plant Physiology, Umeå Plant Science Center, Umeå University, SE-90736, Umeå, Sweden
| | - Catherine Bellini
- Department of Plant Physiology, Umeå Plant Science Center, Umeå University, SE-90736, Umeå, Sweden
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, FR-78000, Versailles, France
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171
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Lee JG, Yi G, Choi JH, Lee EJ. Analyses of targeted/untargeted metabolites and reactive oxygen species of pepper fruits provide insights into seed browning induced by chilling. Food Chem 2020; 332:127406. [PMID: 32615387 DOI: 10.1016/j.foodchem.2020.127406] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 06/17/2020] [Accepted: 06/20/2020] [Indexed: 02/06/2023]
Abstract
Hot peppers are sensitive to low temperature, and seed browning significantly reduces the fruit quality. This study aims to clarify the mechanisms of seed browning in terms of metabolite changes. Metabolites were analysed during a 30-day-storage period at 2 °C and 10 °C. Gamma-aminobutyric acid, tyrosine, phenylalanine, and isoleucine concentrations were significantly higher at 2 °C storage than at 10 °C. Reactive oxygen species (ROS) generation was associated with seed browning. Transcription of jasmonic acid synthesis and ROS scavenging genes were higher in hot peppers stored at 2 °C than those stored at 10 °C. This study elucidated the mechanisms underlying seed browning and chill damage in hot peppers during storage at low temperatures and our findings may help improve hot peppers' quality following harvesting.
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Affiliation(s)
- Jeong Gu Lee
- Department of Plant Science, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Gibum Yi
- Plant Genomics and Breeding Institute, Seoul National University, Seoul 08826, Republic of Korea
| | - Jeong Hee Choi
- Korea Food Research Institute, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Eun Jin Lee
- Department of Plant Science, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea.
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172
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Daguerre Y, Basso V, Hartmann-Wittulski S, Schellenberger R, Meyer L, Bailly J, Kohler A, Plett JM, Martin F, Veneault-Fourrey C. The mutualism effector MiSSP7 of Laccaria bicolor alters the interactions between the poplar JAZ6 protein and its associated proteins. Sci Rep 2020; 10:20362. [PMID: 33230111 PMCID: PMC7683724 DOI: 10.1038/s41598-020-76832-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 10/28/2020] [Indexed: 02/08/2023] Open
Abstract
Despite the pivotal role of jasmonic acid in the outcome of plant-microorganism interactions, JA-signaling components in roots of perennial trees like western balsam poplar (Populus trichocarpa) are poorly characterized. Here we decipher the poplar-root JA-perception complex centered on PtJAZ6, a co-repressor of JA-signaling targeted by the effector protein MiSSP7 from the ectomycorrhizal basidiomycete Laccaria bicolor during symbiotic development. Through protein-protein interaction studies in yeast we determined the poplar root proteins interacting with PtJAZ6. Moreover, we assessed via yeast triple-hybrid how the mutualistic effector MiSSP7 reshapes the association between PtJAZ6 and its partner proteins. In the absence of the symbiotic effector, PtJAZ6 interacts with the transcription factors PtMYC2s and PtJAM1.1. In addition, PtJAZ6 interacts with it-self and with other Populus JAZ proteins. Finally, MiSSP7 strengthens the binding of PtJAZ6 to PtMYC2.1 and antagonizes PtJAZ6 homo-/heterodimerization. We conclude that a symbiotic effector secreted by a mutualistic fungus may promote the symbiotic interaction through altered dynamics of a JA-signaling-associated protein-protein interaction network, maintaining the repression of PtMYC2.1-regulated genes.
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Affiliation(s)
- Yohann Daguerre
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Veronica Basso
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Sebastian Hartmann-Wittulski
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Romain Schellenberger
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Laura Meyer
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Justine Bailly
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Annegret Kohler
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Jonathan M Plett
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia
| | - Francis Martin
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Claire Veneault-Fourrey
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France.
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173
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Daguerre Y, Basso V, Hartmann-Wittulski S, Schellenberger R, Meyer L, Bailly J, Kohler A, Plett JM, Martin F, Veneault-Fourrey C. The mutualism effector MiSSP7 of Laccaria bicolor alters the interactions between the poplar JAZ6 protein and its associated proteins. Sci Rep 2020; 10:20362. [PMID: 33230111 DOI: 10.1038/s41598-020-76832-76836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 10/28/2020] [Indexed: 05/26/2023] Open
Abstract
Despite the pivotal role of jasmonic acid in the outcome of plant-microorganism interactions, JA-signaling components in roots of perennial trees like western balsam poplar (Populus trichocarpa) are poorly characterized. Here we decipher the poplar-root JA-perception complex centered on PtJAZ6, a co-repressor of JA-signaling targeted by the effector protein MiSSP7 from the ectomycorrhizal basidiomycete Laccaria bicolor during symbiotic development. Through protein-protein interaction studies in yeast we determined the poplar root proteins interacting with PtJAZ6. Moreover, we assessed via yeast triple-hybrid how the mutualistic effector MiSSP7 reshapes the association between PtJAZ6 and its partner proteins. In the absence of the symbiotic effector, PtJAZ6 interacts with the transcription factors PtMYC2s and PtJAM1.1. In addition, PtJAZ6 interacts with it-self and with other Populus JAZ proteins. Finally, MiSSP7 strengthens the binding of PtJAZ6 to PtMYC2.1 and antagonizes PtJAZ6 homo-/heterodimerization. We conclude that a symbiotic effector secreted by a mutualistic fungus may promote the symbiotic interaction through altered dynamics of a JA-signaling-associated protein-protein interaction network, maintaining the repression of PtMYC2.1-regulated genes.
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Affiliation(s)
- Yohann Daguerre
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
- Department of Forest Genetics and Plant Physiology, Umeå Plant Science Centre, Swedish University of Agricultural Sciences, 901 83, Umeå, Sweden
| | - Veronica Basso
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Sebastian Hartmann-Wittulski
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Romain Schellenberger
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Laura Meyer
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Justine Bailly
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Annegret Kohler
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Jonathan M Plett
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia
| | - Francis Martin
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France
| | - Claire Veneault-Fourrey
- UMR 1136, Interactions Arbres/Microorganismes (IAM), Centre INRAE de Nancy, Université de Lorraine/INRAE, Champenoux, France.
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174
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Multidisciplinary approach to describe Trebouxia diversity within lichenized fungi Buellia zoharyi from the Canary Islands. Symbiosis 2020. [DOI: 10.1007/s13199-020-00722-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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175
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Lee JG, Yi G, Seo J, Kang BC, Choi JH, Lee EJ. Jasmonic acid and ERF family genes are involved in chilling sensitivity and seed browning of pepper fruit after harvest. Sci Rep 2020; 10:17949. [PMID: 33087820 PMCID: PMC7577993 DOI: 10.1038/s41598-020-75055-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 10/09/2020] [Indexed: 11/09/2022] Open
Abstract
Pepper (Capsicum annuum L.) fruit is sensitive to temperatures below 10 °C, which severely diminish fruit quality during cold chain distribution. Seed browning was a major chilling symptom in 36 genotypes of C. annuum fruit screened after storage at 2 °C for 3 weeks. Among them, pepper fruits of chilling-insensitive 'UZB-GJG-1999-51' and -sensitive 'C00562' were treated at 2 °C for 0 or 24 h, respectively. Analyses of integrated transcriptome-metabolome and relative gene expression in seeds obtained from the two genotypes were conducted to identify key factors involved in the seed browning induced by chilling. The relative contents of branched-chain amino acids such as leucine, isoleucine, and valine were significantly increased after chilling. Transcriptome identification showed 3,140 differentially expressed genes (log twofold change > 1.0 and FDR-corrected p value < 0.05) affected by chilling between the two genotypes. Particularly, genes related to jasmonic acid synthesis and signaling were differentially expressed. A regulatory network of jasmonic acid synthesis and signaling, and regulation of ERF family genes might contribute to chilling response in pepper fruit. The results of this study may help facilitate further studies to develop chilling-insensitive peppers and could be a basis for improving postharvest fruit quality.
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Affiliation(s)
- Jeong Gu Lee
- Depatment of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Gibum Yi
- Depatment of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.,Plant Genomics and Breeding Institute, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jieun Seo
- Depatment of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Byoung-Cheorl Kang
- Depatment of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.,Plant Genomics and Breeding Institute, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jeong Hee Choi
- Korea Food Research Institute, Wanju-gun, Jeollabuk-do, 55365, Republic of Korea
| | - Eun Jin Lee
- Depatment of Agriculture, Forestry and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea. .,Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
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176
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Islam MM, Ye W, Akter F, Rhaman MS, Matsushima D, Munemasa S, Okuma E, Nakamura Y, Biswas MS, Mano J, Murata Y. Reactive Carbonyl Species Mediate Methyl Jasmonate-Induced Stomatal Closure. PLANT & CELL PHYSIOLOGY 2020; 61:1788-1797. [PMID: 32810268 DOI: 10.1093/pcp/pcaa107] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 08/09/2020] [Indexed: 05/20/2023]
Abstract
Production of reactive oxygen species (ROS) is a key signal event for methyl jasmonate (MeJA)- and abscisic acid (ABA)-induced stomatal closure. We recently showed that reactive carbonyl species (RCS) stimulates stomatal closure as an intermediate downstream of hydrogen peroxide (H2O2) production in the ABA signaling pathway in guard cells of Nicotiana tabacum and Arabidopsis thaliana. In this study, we examined whether RCS functions as an intermediate downstream of H2O2 production in MeJA signaling in guard cells using transgenic tobacco plants overexpressing A. thaliana 2-alkenal reductase (n-alkanal + NAD(P)+ ⇌ 2-alkenal + NAD(P)H + H+) (AER-OE tobacco) and Arabidopsis plants. The stomatal closure induced by MeJA was impaired in the AER-OE tobacco and was inhibited by RCS scavengers, carnosine and pyridoxamine, in the wild-type (WT) tobacco plants and Arabidopsis plants. Application of MeJA significantly induced the accumulation of RCS, including acrolein and 4-hydroxy-(E)-2-nonenal, in the WT tobacco but not in the AER-OE plants. Application of MeJA induced H2O2 production in the WT tobacco and the AER-OE plants and the H2O2 production was not inhibited by the RCS scavengers. These results suggest that RCS functions as an intermediate downstream of ROS production in MeJA signaling and in ABA signaling in guard cells.
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Affiliation(s)
- Md Moshiul Islam
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-Naka, Okayama, 700-8530 Japan
- Faculty of Agriculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Wenxiu Ye
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-Naka, Okayama, 700-8530 Japan
| | - Fahmida Akter
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-Naka, Okayama, 700-8530 Japan
| | - Mohammad Saidur Rhaman
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-Naka, Okayama, 700-8530 Japan
| | - Daiki Matsushima
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-Naka, Okayama, 700-8530 Japan
| | - Shintaro Munemasa
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-Naka, Okayama, 700-8530 Japan
| | - Eiji Okuma
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-Naka, Okayama, 700-8530 Japan
| | - Yoshimasa Nakamura
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-Naka, Okayama, 700-8530 Japan
| | - Md Sanaullah Biswas
- Faculty of Agriculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
- United Graduate School of Agriculture, Tottori University, Koyama-cho Minami 4-101, Tottori, 680-8550 Japan
| | - Jun'ichi Mano
- United Graduate School of Agriculture, Tottori University, Koyama-cho Minami 4-101, Tottori, 680-8550 Japan
- Science Research Center, Yamaguchi University, Yoshida 1677-1, Yamaguchi, 753-8515 Japan
| | - Yoshiyuki Murata
- Graduate School of Environmental and Life Science, Okayama University, 1-1-1 Tsushima-Naka, Okayama, 700-8530 Japan
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177
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Watanabe R, Kato N, Hayashi K, Tozawa S, Ogura Y, Kuwahara S, Ueda M. Stereoselective Syntheses of all the Possible Stereoisomers of Coronafacic Acid. ChemistryOpen 2020; 9:1008-1017. [PMID: 33072470 PMCID: PMC7545439 DOI: 10.1002/open.202000210] [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: 07/29/2020] [Revised: 09/05/2020] [Indexed: 11/14/2022] Open
Abstract
An efficient and stereoselective syntheses of all the possible stereoisomers of coronafacic acid (CFA) has been developed. The stereochemistries of C3a and C7a were controlled in a diastereoselective Diels-Alder type cycloaddition using a chiral auxiliary. CFA and 6-epi-CFA were synthesized by hydrogenation of a common intermediate. During the synthesis of 6-epi-CFA, we established that its cis-fused configuration is important for the introduction of C4-C5 double bond by dehydration. This report is the first practical synthesis of both 6-epi-CFA, and its enantiomer.
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Affiliation(s)
- Raku Watanabe
- Graduate School of Life ScienceTohoku University6–3, Aramaki-Aza-Aoba, Aoba-kuSendai980-8578Japan
| | - Nobuki Kato
- Graduate School of ScienceTohoku University6–3, Aramaki-Aza-Aoba, Aoba-kuSendai980-8578Japan
| | - Kengo Hayashi
- Graduate School of ScienceTohoku University6–3, Aramaki-Aza-Aoba, Aoba-kuSendai980-8578Japan
| | - Sho Tozawa
- Graduate School of ScienceTohoku University6–3, Aramaki-Aza-Aoba, Aoba-kuSendai980-8578Japan
| | - Yusuke Ogura
- Laboratory of Applied Bioorganic Chemistry, Graduate School of Agricultural ScienceTohoku UniversitySendai980–8572Japan
| | - Shigefumi Kuwahara
- Laboratory of Applied Bioorganic Chemistry, Graduate School of Agricultural ScienceTohoku UniversitySendai980–8572Japan
| | - Minoru Ueda
- Graduate School of Life ScienceTohoku University6–3, Aramaki-Aza-Aoba, Aoba-kuSendai980-8578Japan
- Graduate School of ScienceTohoku University6–3, Aramaki-Aza-Aoba, Aoba-kuSendai980-8578Japan
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178
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Llorens E, Scalschi L, González-Hernández AI, Camañes G, García-Agustín P, Vicedo B. 1-Methyltryptophan Treatment Increases Defense-Related Proteins in the Apoplast of Tomato Plants. J Proteome Res 2020; 20:433-443. [PMID: 32989989 DOI: 10.1021/acs.jproteome.0c00498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The activation of induced resistance in plants may enhance the production of defensive proteins to avoid the invasion of pathogens. In this way, the composition of the apoplastic fluid could represent an important layer of defense that plants can modify to avoid the attack. In this study, we performed a proteomic study of the apoplastic fluid from plants treated with the resistance inducer 1-methyltryptophan (1-MT) as well as infected with Pseudomonas syringae pv. tomato (Pst). Our results showed that both the inoculation with Pst and the application of the inducer provoke changes in the proteomic composition in the apoplast enhancing the accumulation of proteins involved in plant defense. Finally, one of the identified proteins that are overaccumulated upon the treatment have been expressed in Escherichia coli and purified in order to test their antimicrobial effect. The result showed that the tested protein is able to reduce the growth of Pst in vitro. Taken together, in this work, we described the proteomic changes in the apoplast induced by the treatment and by the inoculation, as well as demonstrated that the proteins identified have a role in the plant protection.
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Affiliation(s)
- Eugenio Llorens
- Grupo de Bioquı́mica y Biotecnologı́a, Área de Fisiologı́a Vegetal, Departamento de Ciencias Agrarias y del Medio Natural, ESTCE. Universitat Jaume I, 12071 Castellón, Spain
| | - Loredana Scalschi
- Grupo de Bioquı́mica y Biotecnologı́a, Área de Fisiologı́a Vegetal, Departamento de Ciencias Agrarias y del Medio Natural, ESTCE. Universitat Jaume I, 12071 Castellón, Spain
| | - Ana I González-Hernández
- Grupo de Bioquı́mica y Biotecnologı́a, Área de Fisiologı́a Vegetal, Departamento de Ciencias Agrarias y del Medio Natural, ESTCE. Universitat Jaume I, 12071 Castellón, Spain
| | - Gemma Camañes
- Grupo de Bioquı́mica y Biotecnologı́a, Área de Fisiologı́a Vegetal, Departamento de Ciencias Agrarias y del Medio Natural, ESTCE. Universitat Jaume I, 12071 Castellón, Spain
| | - Pilar García-Agustín
- Grupo de Bioquı́mica y Biotecnologı́a, Área de Fisiologı́a Vegetal, Departamento de Ciencias Agrarias y del Medio Natural, ESTCE. Universitat Jaume I, 12071 Castellón, Spain
| | - Begonya Vicedo
- Grupo de Bioquı́mica y Biotecnologı́a, Área de Fisiologı́a Vegetal, Departamento de Ciencias Agrarias y del Medio Natural, ESTCE. Universitat Jaume I, 12071 Castellón, Spain
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179
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Shukla V, Lombardi L, Pencik A, Novak O, Weits DA, Loreti E, Perata P, Giuntoli B, Licausi F. Jasmonate Signalling Contributes to Primary Root Inhibition Upon Oxygen Deficiency in Arabidopsis thaliana. PLANTS 2020; 9:plants9081046. [PMID: 32824502 PMCID: PMC7464498 DOI: 10.3390/plants9081046] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 12/01/2022]
Abstract
Plants, including most crops, are intolerant to waterlogging, a stressful condition that limits the oxygen available for roots, thereby inhibiting their growth and functionality. Whether root growth inhibition represents a preventive measure to save energy or is rather a consequence of reduced metabolic rates has yet to be elucidated. In the present study, we gathered evidence for hypoxic repression of root meristem regulators that leads to root growth inhibition. We also explored the contribution of the hormone jasmonic acid (JA) to this process in Arabidopsis thaliana. Analysis of transcriptomic profiles, visualisation of fluorescent reporters and direct hormone quantification confirmed the activation of JA signalling under hypoxia in the roots. Further, root growth assessment in JA-related mutants in aerobic and anaerobic conditions indicated that JA signalling components contribute to active root inhibition under hypoxia. Finally, we show that the oxygen-sensing transcription factor (TF) RAP2.12 can directly induce Jasmonate Zinc-finger proteins (JAZs), repressors of JA signalling, to establish feedback inhibition. In summary, our study sheds new light on active root growth restriction under hypoxic conditions and on the involvement of the JA hormone in this process and its cross talk with the oxygen sensing machinery of higher plants.
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Affiliation(s)
- Vinay Shukla
- Plantlab, Institute of Life Sciences, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (V.S.); (D.A.W.); (P.P.); (B.G.)
| | - Lara Lombardi
- Department of Biology, University of Pisa, 56126 Pisa, Italy;
| | - Ales Pencik
- Laboratory of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany, The Czech Academy of Sciences, CZ-783 71 Olomouc, Czech Republic; (A.P.); (O.N.)
| | - Ondrej Novak
- Laboratory of Growth Regulators, Faculty of Science, Palacký University & Institute of Experimental Botany, The Czech Academy of Sciences, CZ-783 71 Olomouc, Czech Republic; (A.P.); (O.N.)
| | - Daan A. Weits
- Plantlab, Institute of Life Sciences, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (V.S.); (D.A.W.); (P.P.); (B.G.)
| | - Elena Loreti
- The Institute of Agricultural Biology and Biotechnology, National Research Council, 20133 Milan, Italy;
| | - Pierdomenico Perata
- Plantlab, Institute of Life Sciences, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (V.S.); (D.A.W.); (P.P.); (B.G.)
| | - Beatrice Giuntoli
- Plantlab, Institute of Life Sciences, Scuola Superiore Sant’Anna, 56127 Pisa, Italy; (V.S.); (D.A.W.); (P.P.); (B.G.)
- Department of Biology, University of Pisa, 56126 Pisa, Italy;
| | - Francesco Licausi
- Department of Biology, University of Pisa, 56126 Pisa, Italy;
- Department of Plant Sciences, University of Oxford, Oxford OX1 3RB, UK
- Correspondence:
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180
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Fernández-Calvo P, Iñigo S, Glauser G, Vanden Bossche R, Tang M, Li B, De Clercq R, Nagels Durand A, Eeckhout D, Gevaert K, De Jaeger G, Brady SM, Kliebenstein DJ, Pauwels L, Goossens A, Ritter A. FRS7 and FRS12 recruit NINJA to regulate expression of glucosinolate biosynthesis genes. THE NEW PHYTOLOGIST 2020; 227:1124-1137. [PMID: 32266972 DOI: 10.1111/nph.16586] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 03/25/2020] [Indexed: 05/24/2023]
Abstract
The sessile lifestyle of plants requires accurate physiology adjustments to be able to thrive in a changing environment. Plants integrate environmental timing signals to control developmental and stress responses. Here, we identified Far1 Related Sequence (FRS) 7 and FRS12, two transcriptional repressors that accumulate in short-day conditions, as regulators of Arabidopsis glucosinolate (GSL) biosynthesis. Loss of function of FRS7 and FRS12 results in plants with increased amplitudes of diurnal expression of GSL pathway genes. Protein interaction analyses revealed that FRS7 and FRS12 recruit the NOVEL INTERACTOR OF JAZ (NINJA) to assemble a transcriptional repressor complex. Genetic and molecular evidence demonstrated that FRS7, FRS12 and NINJA jointly regulate the expression of GSL biosynthetic genes, and thus constitute a molecular mechanism that modulates specialized metabolite accumulation.
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Affiliation(s)
- Patricia Fernández-Calvo
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Sabrina Iñigo
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Gaétan Glauser
- Neuchâtel Platform of Analytical Chemistry, University of Neuchâtel, Avenue de Bellevaux 51, 2000, Neuchâtel, Switzerland
| | - Robin Vanden Bossche
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Michelle Tang
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
- Graduate Group in Plant Biology, University of California, Davis, CA, 95616, USA
| | - Baohua Li
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
| | - Rebecca De Clercq
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Astrid Nagels Durand
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Dominique Eeckhout
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Kris Gevaert
- Department of Biomolecular Medicine, Ghent University, Albert Baertsoenkaai 3, B-9000, Ghent, Belgium
- VIB Center for Medical Biotechnology, Albert Baertsoenkaai 3, B-9000, Ghent, Belgium
| | - Geert De Jaeger
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Siobhan M Brady
- Department of Plant Biology and Genome Center, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Daniel J Kliebenstein
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
- DynaMo Center of Excellence, University of Copenhagen, DK-1871, Frederiksberg C, Denmark
| | - Laurens Pauwels
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Alain Goossens
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
| | - Andrés Ritter
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Technologiepark 71, B-9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, Technologiepark 71, B-9052, Ghent, Belgium
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181
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Kuo HY, Kang FC, Wang YY. Glucosinolate Transporter1 involves in salt-induced jasmonate signaling and alleviates the repression of lateral root growth by salt in Arabidopsis. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 297:110487. [PMID: 32563451 DOI: 10.1016/j.plantsci.2020.110487] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/20/2020] [Accepted: 03/25/2020] [Indexed: 05/15/2023]
Abstract
Salt stress has negative impact on plant development and growth. Jasmonic acid (JA), a phytohormone, has been shown to involve in salt-induced inhibition of primary root growth. The Arabidopsis Glucosinolate transporter1 (GTR1/NPF2.10) is characterized as a JA-Ile, a bioactive form of JA, transporter. However, whether GTR1 participates in salt responses is not clear. In this study, we confirmed that GTR1 is induced by both JA and salinity. Salt-induced JA signaling is affected in gtr1 mutant. The JA responsive genes, JAZ1, JAZ5, MYC2, LOX3, are down-regulated in gtr1 mutant. Phenotypic analyses showed that the salinity-induced lateral root growth inhibition is enhanced in gtr1 mutant, suggesting that GTR1 plays a positive role in lateral root development under salt stress. Interestingly, the expression of a Na+ transporter, HKT1, is upregulated in gtr1. Since HKT1 is a negative regulator for lateral root development under salt stress, we proposed that GTR1 alleviates the repression of lateral root development by salt stress by mediating JA signaling and repressing HKT1 expression. This study demonstrates that GTR1 is the molecular link between salt stress, JA signaling, and lateral root development.
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Affiliation(s)
- Hsin-Yi Kuo
- Institute of Plant Biology, National Taiwan University, Taipei 10617, Taiwan
| | - Feng-Chih Kang
- Institute of Plant Biology, National Taiwan University, Taipei 10617, Taiwan
| | - Ya-Yun Wang
- Department of Life Science, National Taiwan University, Taipei 10617, Taiwan; Institute of Plant Biology, National Taiwan University, Taipei 10617, Taiwan.
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182
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Zhang C, Lei Y, Lu C, Wang L, Wu J. MYC2, MYC3, and MYC4 function additively in wounding-induced jasmonic acid biosynthesis and catabolism. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2020; 62:1159-1175. [PMID: 31876387 DOI: 10.1111/jipb.12902] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 12/18/2019] [Indexed: 05/15/2023]
Abstract
Jasmonic acid (JA) plays a critical role in plant defenses against insects and necrotrophic fungi. Wounding or lepidopteran insect feeding rapidly induces a burst of JA in plants, which usually reaches peak values within 1 to 2 h. The induced JA is converted to JA-Ile and perceived by the COI1-JAZ co-receptor, leading to activation of the transcription factors MYC2 and its homologs, which further induce JA-responsive genes. Although much is known about JA biosynthesis and catabolism enzymes and JA signaling, how JA biosynthesis and catabolism are regulated remain unclear. Here, we show that in Arabidopsis thaliana MYC2 functions additively with MYC3 and MYC4 to regulate wounding-induced JA accumulation by directly binding to the promoters of genes function in JA biosynthesis and catabolism to promote their transcription. MYC2 also controls the transcription of JAV1 and JAM1, which are key factors controlling JA biosynthesis and catabolism, respectively. In addition, we also found that MYC2 could bind to the MYC2 promoter and self-inhibit its own expression. This work illustrates the central role of MYC2/3/4 in controlling wounding-induced JA accumulation by regulating the transcription of genes involved in JA biosynthesis and catabolism.
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Affiliation(s)
- Cuiping Zhang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yunting Lei
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Chengkai Lu
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Lei Wang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Jianqiang Wu
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
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183
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Feng G, Yoo M, Davenport R, Boatwright JL, Koh J, Chen S, Barbazuk WB. Jasmonate induced alternative splicing responses in Arabidopsis. PLANT DIRECT 2020; 4:e00245. [PMID: 32875268 PMCID: PMC7450174 DOI: 10.1002/pld3.245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 06/04/2020] [Accepted: 06/24/2020] [Indexed: 05/14/2023]
Abstract
Jasmonate is an essential phytohormone regulating plant growth, development, and defense. Alternative splicing (AS) in jasmonate ZIM-domain (JAZ) repressors is well-characterized and plays an important role in jasmonate signaling regulation. However, it is unknown whether other genes in the jasmonate signaling pathway are regulated by AS. We explore the potential for AS regulation in three Arabidopsis genotypes (WT, jaz2, jaz7) in response to methyl jasmonate (MeJA) treatment with respect to: (a) differential AS, (b) differential miRNA targeted AS, and (c) AS isoforms with novel functions. AS events identified from transcriptomic data were validated with proteomic data. Protein interaction networks identified two genes, SKIP and ALY4 whose products have both DNA- and RNA-binding affinities, as potential key regulators mediating jasmonate signaling and AS regulation. We observed cases where AS alone, or AS and transcriptional regulation together, can influence gene expression in response to MeJA. Twenty-one genes contain predicted miRNA target sites subjected to AS, which implies that AS is coupled to miRNA regulation. We identified 30 cases where alternatively spliced isoforms may have novel functions. For example, AS of bHLH160 generates an isoform without a basic domain, which may convert it from an activator to a repressor. Our study identified potential key regulators in AS regulation of jasmonate signaling pathway. These findings highlight the importance of AS regulation in the jasmonate signaling pathway, both alone and in collaboration with other regulators. SIGNIFICANCE STATEMENT By exploring alternative splicing, we demonstrate its regulation in the jasmonate signaling pathway alone or in collaboration with other posttranscriptional regulations such as nonsense and microRNA-mediated decay. A signal transduction network model for alternative splicing in jasmonate signaling pathway was generated, contributing to our understanding for this important, prevalent, but relatively unexplored regulatory mechanism in plants.
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Affiliation(s)
- Guanqiao Feng
- Plant Molecular and Cellular Biology ProgramUniversity of FloridaGainesvilleFLUSA
| | - Mi‐Jeong Yoo
- Department of BiologyUniversity of FloridaGainesvilleFLUSA
| | - Ruth Davenport
- Department of BiologyUniversity of FloridaGainesvilleFLUSA
| | | | - Jin Koh
- The Interdisciplinary Center for Biotechnology Research (ICBR)University of FloridaGainesvilleFLUSA
| | - Sixue Chen
- Plant Molecular and Cellular Biology ProgramUniversity of FloridaGainesvilleFLUSA
- Department of BiologyUniversity of FloridaGainesvilleFLUSA
- The Interdisciplinary Center for Biotechnology Research (ICBR)University of FloridaGainesvilleFLUSA
- The Genetics InstituteUniversity of FloridaGainesvilleFLUSA
| | - W. Brad Barbazuk
- Plant Molecular and Cellular Biology ProgramUniversity of FloridaGainesvilleFLUSA
- Department of BiologyUniversity of FloridaGainesvilleFLUSA
- The Interdisciplinary Center for Biotechnology Research (ICBR)University of FloridaGainesvilleFLUSA
- The Genetics InstituteUniversity of FloridaGainesvilleFLUSA
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184
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Coronatine is more potent than jasmonates in regulating Arabidopsis circadian clock. Sci Rep 2020; 10:12862. [PMID: 32732994 PMCID: PMC7393363 DOI: 10.1038/s41598-020-69627-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 06/21/2020] [Indexed: 11/08/2022] Open
Abstract
Recent studies establish a crucial role of the circadian clock in regulating plant defense against pathogens. Whether pathogens modulate host circadian clock as a potential strategy to suppress host innate immunity is not well understood. Coronatine is a toxin produced by the bacterial pathogen Pseudomonas syringae that is known to counteract Arabidopsis defense through mimicking defense signaling molecules, jasmonates (JAs). We report here that COR preferentially suppresses expression of clock-related genes in high throughput gene expression studies, compared with the plant-derived JA molecule methyl jasmonate (MJ). COR treatment dampens the amplitude and lengthens the period of all four reporters tested while MJ and another JA agonist JA-isoleucine (JA-Ile) only affect some reporters. COR, MJ, and JA-Ile act through the canonical JA receptor COI1 in clock regulation. These data support a stronger role of the pathogen-derived molecule COR than plant-derived JA molecules in regulating Arabidopsis clock. Further study shall reveal mechanisms underlying COR regulation of host circadian clock.
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185
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Garrido-Bigotes A, Valenzuela-Riffo F, Torrejón M, Solano R, Morales-Quintana L, Figueroa CR. A new functional JAZ degron sequence in strawberry JAZ1 revealed by structural and interaction studies on the COI1-JA-Ile/COR-JAZs complexes. Sci Rep 2020; 10:11310. [PMID: 32647129 PMCID: PMC7347570 DOI: 10.1038/s41598-020-68213-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 06/22/2020] [Indexed: 11/09/2022] Open
Abstract
The phytohormone jasmonoyl-isoleucine (JA-Ile) regulates fundamental plant processes as developmental and defense responses. JA-Ile mediates the interaction between the F-box protein COI1 (part of the SCFCOI1 E3 ubiquitin ligase) and a JAZ repressor leading to early jasmonate responses. The Arabidopsis JAZ1 protein contains the canonical LPIARR degron sequence, which is responsible for the stabilization of the AtCOI1-JA-Ile-AtJAZ1 complex. In strawberry (Fragaria × ananassa) JAZ family was described at the transcriptional level during fruit development but the information about the interaction mode of this complex is still scarce at the molecular level. To gain insight into the strawberry JA-Ile receptor complex, we evaluated the interaction at the structural level, and protein models were built and analyzed for FaCOI1 and FaJAZ1, FaJAZ8.1, and FaJAZ10. The interaction between FaCOI1 and FaJAZ1, FaJAZ8.1 and FaJAZ10 were explored using several ligands, through molecular docking and molecular dynamics (MD) simulations, finding the strongest interaction with (+)-7-iso-JA-Ile than other ligands. Additionally, we tested interactions between FaCOI1 and FaJAZs by yeast two-hybrid assays in the presence of coronatine (COR, a JA-Ile mimic). We detected strong COR-dependent interactions between FaCOI1 and FaJAZ1. Interestingly, FaJAZ1 contains a new non-canonical (IPMQRK) functional degron sequence, in which Arg and Lys are the key residues for maintaining the interaction of the FaCOI1–COR–FaJAZ1 complex as we observed in mutated versions of the FaJAZ1 degron. Phylogenetic analysis showed that the IPMQRK degron is only present in orthologs belonging to the Rosoideae but not in other Rosaceae subfamilies. Together, this study uncovers a new degron sequence in plants, which could be required to make an alternative and functional JA-Ile perception complex in strawberry.
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Affiliation(s)
- Adrián Garrido-Bigotes
- Laboratory of Plant Epigenetics, Faculty of Forest Sciences, Universidad de Concepción, Concepción, Chile
| | | | - Marcela Torrejón
- Laboratory of Signaling and Development, Department of Biochemistry and Molecular Biology, Faculty of Biological Sciences, Universidad de Concepción, Concepción, Chile
| | - Roberto Solano
- Plant Molecular Genetics Department, Centro Nacional de Biotecnología-CSIC (CNB-CSIC), Madrid, Spain
| | - Luis Morales-Quintana
- Multidisciplinary Agroindustry Research Laboratory, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Talca, Chile
| | - Carlos R Figueroa
- Institute of Biological Sciences, Campus Talca, Universidad de Talca, Talca, Chile.
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186
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Antimicrobial and antioxidant activities and chemical profiling of Curvularia tsudae endophytic in Cynodon dactylon (L.) Pers. 3 Biotech 2020; 10:300. [PMID: 32550117 DOI: 10.1007/s13205-020-02250-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/06/2020] [Indexed: 01/27/2023] Open
Abstract
There is a growing body of evidence that endophytic fungal metabolites possess important biological activities. Cynodon dactylon (L.) Pers., a well-known grass species with potential medicinal properties, is under-explored for the diversity of endophytic fungal species and their metabolites. We report here the diversity of endophytic fungi in the culm, leaf and inflorescence of Cynodon dactylon when cultured on moist blotter (MB), potato dextrose agar (PDA) and malt extract agar (MEA). Species richness, Shannon and Simpson diversity and evenness indices showed that PDA followed by MEA supported the growth of the largest number of fungal species. Amongst four fungal species tested, Curvularia tsudae was selected for further studies on antimicrobial and antioxidant activities. The mycelial mat (MM) and culture filtrate (CF) of PD broth grown Curvularia tsudae extracted with ethyl acetate and methanol, respectively, were subjected to antimicrobial assay against five bacterial and four fungal test isolates. Results indicated that the ethyl acetate extract of CF had moderate activity against Enterococcus faecalis, Escherichia coli, Pseudomonas fluorescence and Staphylococcus aureus whereas the methanolic MM extract showed high to moderate activity to Aspergillus flavus, A. niger and Fusarium oxysporum. Cyclic voltammetric analysis of ethyl acetate extract showed very good antioxidant activity and the extract contained coumarins when determined by HPLC. High-resolution orbitrap LC-MS of ethyl acetate extract revealed the presence of metabolites with antimicrobial and antioxidant and other biological activities. Finding of the present study suggested that Curvularia tsudae could be exploited for pharmaceutical applications.
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187
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Matayoshi CL, Pena LB, Arbona V, Gómez-Cadenas A, Gallego SM. Early responses of maize seedlings to Cu stress include sharp decreases in gibberellins and jasmonates in the root apex. PROTOPLASMA 2020; 257:1243-1256. [PMID: 32350742 DOI: 10.1007/s00709-020-01504-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
Copper (Cu) interferes with numerous biological functions in plants, including plant growth, which is partly governed by plant hormones. In the present study, Cu stress effect on the roots of pre-emerging maize seedlings in terms of growth, nutrient composition, protein modifications, and root hormone homeostasis was investigated, focusing on possible metabolic differences between the root apex and the rest of the root tissues. Significant decreases in root length and root biomass after 72 h of Cu exposure (50 and 100 μM CuCl2), accompanied by reductions in Ca, Mg, and P root contents, were found. Cu also generated cell redox imbalance in both root tissues and revealed by altered enzymatic and non-enzymatic antioxidant defenses. Oxidative stress was evidenced by an increased protein carbonylation level in both tissues. Copper also induced protein ubiquitylation and SUMOylation and affected 20S proteasome peptidase activities in both tissues. Drastic reductions in ABA, IAA, JA (both free and conjugated), GA3, and GA4 levels in the root apex were detected under Cu stress. Our results show that Cu exposure generated oxidative damage and altered root hormonal homeostasis, mainly at the root apex, leading to a strong root growth inhibition. Severe protein post-translational modifications upon Cu exposure occurred in both tissues, suggesting that even when hormonal adjustments to cope with Cu stress occurred mainly at the root apex, the entire root is compromised in the protein turnover that seems to be necessary to trigger and/or to sustain defense mechanisms against Cu toxicity.
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Affiliation(s)
- Carolina L Matayoshi
- Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Liliana B Pena
- Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Universidad de Buenos Aires, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Vicent Arbona
- Departament de Ciències Agràries i del Medi Natural, Ecofisiologia i Biotecnologia. Campus Riu Sec, Universitat Jaume I, E12071, Castelló de la Plana, Spain
| | - Aurelio Gómez-Cadenas
- Departament de Ciències Agràries i del Medi Natural, Ecofisiologia i Biotecnologia. Campus Riu Sec, Universitat Jaume I, E12071, Castelló de la Plana, Spain
| | - Susana M Gallego
- Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Universidad de Buenos Aires, Buenos Aires, Argentina.
- Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Universidad de Buenos Aires, Buenos Aires, Argentina.
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188
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Kocáb O, Jakšová J, Novák O, Petřík I, Lenobel R, Chamrád I, Pavlovič A. Jasmonate-independent regulation of digestive enzyme activity in the carnivorous butterwort Pinguicula × Tina. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:3749-3758. [PMID: 32219314 PMCID: PMC7307851 DOI: 10.1093/jxb/eraa159] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/25/2020] [Indexed: 05/18/2023]
Abstract
Carnivorous plants within the order Caryophyllales use jasmonates, a class of phytohormone, in the regulation of digestive enzyme activities. We used the carnivorous butterwort Pinguicula × Tina from the order Lamiales to investigate whether jasmonate signaling is a universal and ubiquitous signaling pathway that exists outside the order Caryophyllales. We measured the electrical signals, enzyme activities, and phytohormone tissue levels in response to prey capture. Mass spectrometry was used to identify proteins in the digestive secretion. We identified eight enzymes in the digestive secretion, many of which were previously found in other genera of carnivorous plants. Among them, alpha-amylase is unique in carnivorous plants. Enzymatic activities increased in response to prey capture; however, the tissue content of jasmonic acid and its isoleucine conjugate remained rather low in contrast to the jasmonate response to wounding. Enzyme activities did not increase in response to the exogenous application of jasmonic acid or coronatine. Whereas similar digestive enzymes were co-opted from plant defense mechanisms among carnivorous plants, the mode of their regulation differs. The butterwort has not co-opted jasmonate signaling for the induction of enzyme activities in response to prey capture. Moreover, the presence of alpha-amylase in digestive fluid of P. × Tina, which has not been found in other genera of carnivorous plants, might indicate that non-defense-related genes have also been co-opted for carnivory.
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Affiliation(s)
- Ondřej Kocáb
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, Czech Republic
| | - Jana Jakšová
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, Czech Republic
| | - Ondřej Novák
- Laboratory of Growth Regulators, Institute of Experimental Botany, The Czech Academy of Sciences and Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc , Czech Republic
| | - Ivan Petřík
- Laboratory of Growth Regulators, Institute of Experimental Botany, The Czech Academy of Sciences and Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc , Czech Republic
| | - René Lenobel
- Department of Protein Biochemistry and Proteomics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, Czech Republic
| | - Ivo Chamrád
- Department of Protein Biochemistry and Proteomics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, Czech Republic
| | - Andrej Pavlovič
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, Olomouc, Czech Republic
- Correspondence:
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189
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Methyl Jasmonate Affects Photosynthesis Efficiency, Expression of HvTIP Genes and Nitrogen Homeostasis in Barley. Int J Mol Sci 2020; 21:ijms21124335. [PMID: 32570736 PMCID: PMC7352393 DOI: 10.3390/ijms21124335] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/11/2020] [Accepted: 06/16/2020] [Indexed: 12/22/2022] Open
Abstract
Jasmonates modulate many growth and developmental processes and act as stress hormones that play an important role in plant tolerance to biotic and abiotic stresses. Therefore, there is a need to identify the genes that are regulated through the jasmonate signalling pathway. Aquaporins, and among them the Tonoplast Intrinsic Proteins (TIPs), form the channels in cell membranes that are responsible for the precise regulation of the movement of water and other substrates between cell compartments. We identified the cis-regulatory motifs for the methyl jasmonate (MeJA)-induced genes in the promoter regions of all the HvTIP genes, which are active in barley seedlings, and thus we hypothesised that the HvTIP expression could be a response to jasmonate signalling. In the presented study, we determined the effect of methyl jasmonate on the growth parameters and photosynthesis efficiency of barley seedlings that had been exposed to different doses of MeJA (15–1000 µM × 120 h) in a hydroponic solution. All of the applied MeJA concentrations caused a significant reduction of barley seedling growth, which was most evident in the length of the first leaf sheath and dry leaf weight. The observed decrease of the PSII parameters after the exposure to high doses of MeJA (500 µM or higher) was associated with the downregulation of HvPsbR gene encoding one of the extrinsic proteins of the Oxygen Evolving Complex. The reduced expression of HvPsbR might lead to the impairment of the OEC action, manifested by the occurrence of the K-band in an analysis of fluorescence kinetics after MeJA treatment as well as reduced photosynthesis efficiency. Furthermore, methyl jasmonate treatment caused a decrease in the nitrogen content in barley leaves, which was associated with an increased expression the four tonoplast aquaporin genes (HvTIP1;2, HvTIP2;2, HvTIP4;1 and HvTIP4;2) predicted to transport the nitrogen compounds from the vacuole to the cytosol. The upregulation of the nitrogen-transporting HvTIPs might suggest their involvement in the vacuolar unloading of ammonia and urea, which both could be remobilised when the nitrogen content in the leaves decreases. Our research provides tips on physiological role of the individual TIP subfamily members of aquaporins under methyl jasmonate action.
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190
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The Role of Stress-Responsive Transcription Factors in Modulating Abiotic Stress Tolerance in Plants. AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10060788] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abiotic stresses, such as drought, high temperature, and salinity, affect plant growth and productivity. Furthermore, global climate change may increase the frequency and severity of abiotic stresses, suggesting that development of varieties with improved stress tolerance is critical for future sustainable crop production. Improving stress tolerance requires a detailed understanding of the hormone signaling and transcriptional pathways involved in stress responses. Abscisic acid (ABA) and jasmonic acid (JA) are key stress-response hormones in plants, and some stress-responsive transcription factors such as ABFs and MYCs function as direct components of ABA and JA signaling, playing a pivotal role in plant tolerance to abiotic stress. In addition, extensive studies have identified other stress-responsive transcription factors belonging to the NAC, AP2/ERF, MYB, and WRKY families that mediate plant response and tolerance to abiotic stress. These suggest that transcriptional regulation of stress-responsive genes is an essential step to determine the mechanisms underlying plant stress responses and tolerance to abiotic stress, and that these transcription factors may be important targets for development of crops with enhanced abiotic stress tolerance. In this review, we briefly describe the mechanisms underlying plant abiotic stress responses, focusing on ABA and JA metabolism and signaling pathways. We then summarize the diverse array of transcription factors involved in plant responses to abiotic stress, while noting their potential applications for improvement of stress tolerance.
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191
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de Almeida Barros V, Fontes PP, Barcelos de Souza G, Gonçalves AB, de Carvalho K, Rincão MP, de Oliveira Negrão Lopes I, Dal-Bianco Lamas Costa M, Alves MS, Marcelino-Guimarães FC, Fietto LG. Phakopsora pachyrhizi triggers the jasmonate signaling pathway during compatible interaction in soybean and GmbZIP89 plays a role of major component in the pathway. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 151:526-534. [PMID: 32305819 DOI: 10.1016/j.plaphy.2020.03.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 03/16/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
The biotrophic fungus Phakopsora pachyrhizi is currently the major pathogen affecting soybean production worldwide. It has already been suggested for the non-host interaction between P. pachyrhizi and Arabidopsis thaliana that the fungus in early infection induces jasmonic acid (JA) pathway to the detriment of the salicylic acid (SA) pathway as a mechanism to the establishment of infection. In this study, we verified that this mechanism might also be occurring during the compatible interaction in soybean (Glycine max L. Merril). It was demonstrated that P. pachyrhizi triggers a JA pathway during the early and late stages of infection in a susceptible soybean cultivar. The expression of the GmbZIP89 was induced in a biphasic profile, similarly to other JA responsive genes, which indicates a new marker gene for this signaling pathway. Additionally, plants silenced for GmbZIP89 (iGmZIP89) by the virus-induced gene silencing (VIGS) approach present lower severity of infection and higher expression of pathogenesis related protein 1 (PR1). The lower disease severity showed that the iGmbZIP89 plants became more resistant to infection. These data corroborate the hypothesis that the GmbZIP89 may be a resistance negative regulator. In conclusion, we demonstrated that P. pachyrhizi mimics a necrotrophic fungus and activates the JA/ET pathway in soybean. It is possible to suppose that its direct penetration on epidermal cells or fungal effectors may modulate the expression of target genes aiming the activation of the JA pathway and inhibition of SA defense.
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Affiliation(s)
- Vanessa de Almeida Barros
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. PH Rolfs S/n, Campus Universitário, 36570-900, Viçosa, MG, Brazil
| | - Patrícia Pereira Fontes
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. PH Rolfs S/n, Campus Universitário, 36570-900, Viçosa, MG, Brazil
| | - Gilza Barcelos de Souza
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. PH Rolfs S/n, Campus Universitário, 36570-900, Viçosa, MG, Brazil
| | - Amanda Bonoto Gonçalves
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. PH Rolfs S/n, Campus Universitário, 36570-900, Viçosa, MG, Brazil
| | - Kenia de Carvalho
- Universidade Estadual de Londrina, 86057-970, Londrina, Paraná, Brazil
| | | | | | - Maximiller Dal-Bianco Lamas Costa
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Av. PH Rolfs S/n, Campus Universitário, 36570-900, Viçosa, MG, Brazil
| | - Murilo Siqueira Alves
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Avenida Humberto Monte S/N, Campus Pici, Fortaleza, CE, 60440-900, Brazil
| | | | - Luciano Gomes Fietto
- Molecular Biotechnology Laboratory, Biochemistry and Molecular Biology Department, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil.
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192
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Dallery JF, Zimmer M, Halder V, Suliman M, Pigné S, Le Goff G, Gianniou DD, Trougakos IP, Ouazzani J, Gasperini D, O’Connell RJ. Inhibition of jasmonate-mediated plant defences by the fungal metabolite higginsianin B. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:2910-2921. [PMID: 32006004 PMCID: PMC7260715 DOI: 10.1093/jxb/eraa061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 01/29/2020] [Indexed: 05/22/2023]
Abstract
Infection of Arabidopsis thaliana by the ascomycete fungus Colletotrichum higginsianum is characterized by an early symptomless biotrophic phase followed by a destructive necrotrophic phase. The fungal genome contains 77 secondary metabolism-related biosynthetic gene clusters, whose expression during the infection process is tightly regulated. Deleting CclA, a chromatin regulator involved in the repression of some biosynthetic gene clusters through H3K4 trimethylation, allowed overproduction of three families of terpenoids and isolation of 12 different molecules. These natural products were tested in combination with methyl jasmonate, an elicitor of jasmonate responses, for their capacity to alter defence gene induction in Arabidopsis. Higginsianin B inhibited methyl jasmonate-triggered expression of the defence reporter VSP1p:GUS, suggesting it may block bioactive jasmonoyl isoleucine (JA-Ile) synthesis or signalling in planta. Using the JA-Ile sensor Jas9-VENUS, we found that higginsianin B, but not three other structurally related molecules, suppressed JA-Ile signalling by preventing the degradation of JAZ proteins, the repressors of jasmonate responses. Higginsianin B likely blocks the 26S proteasome-dependent degradation of JAZ proteins because it inhibited chymotrypsin- and caspase-like protease activities. The inhibition of target degradation by higginsianin B also extended to auxin signalling, as higginsianin B treatment reduced auxin-dependent expression of DR5p:GUS. Overall, our data indicate that specific fungal secondary metabolites can act similarly to protein effectors to subvert plant immune and developmental responses.
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Affiliation(s)
- Jean-Félix Dallery
- Université Paris-Saclay, INRAE, AgroParisTech, UMR BIOGER, Thiverval-Grignon, France
- Centre National de la Recherche Scientifique, Institut de Chimie des Substances Naturelles ICSN, Gif-sur-Yvette, France
| | - Marlene Zimmer
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
| | - Vivek Halder
- Chemical Biology Laboratory, Max Planck Institute for Plant Breeding Research, Cologne, Germany
- Current address: Rijk Zwaan, De Lier, 2678 ZG, Netherlands
| | - Mohamed Suliman
- Chemical Biology Laboratory, Max Planck Institute for Plant Breeding Research, Cologne, Germany
- Current address: Desert Research Center, Cairo, Egypt
| | - Sandrine Pigné
- Université Paris-Saclay, INRAE, AgroParisTech, UMR BIOGER, Thiverval-Grignon, France
| | - Géraldine Le Goff
- Centre National de la Recherche Scientifique, Institut de Chimie des Substances Naturelles ICSN, Gif-sur-Yvette, France
| | - Despoina D Gianniou
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, Greece
| | - Ioannis P Trougakos
- Department of Cell Biology and Biophysics, Faculty of Biology, National and Kapodistrian University of Athens, Greece
| | - Jamal Ouazzani
- Centre National de la Recherche Scientifique, Institut de Chimie des Substances Naturelles ICSN, Gif-sur-Yvette, France
| | - Debora Gasperini
- Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany
- Correspondence: or
| | - Richard J O’Connell
- Université Paris-Saclay, INRAE, AgroParisTech, UMR BIOGER, Thiverval-Grignon, France
- Correspondence: or
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193
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Ortigosa A, Fonseca S, Franco-Zorrilla JM, Fernández-Calvo P, Zander M, Lewsey MG, García-Casado G, Fernández-Barbero G, Ecker JR, Solano R. The JA-pathway MYC transcription factors regulate photomorphogenic responses by targeting HY5 gene expression. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 102:138-152. [PMID: 31755159 DOI: 10.1111/tpj.14618] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 10/28/2019] [Accepted: 11/05/2019] [Indexed: 05/18/2023]
Abstract
Jasmonates are key regulators of the balance between defence and growth in plants. However, the molecular mechanisms by which activation of defence reduces growth are not yet fully understood. Here, we analyze the role of MYC transcription factors (TFs) and jasmonic acid (JA) in photomorphogenic growth. We found that multiple myc mutants share light-associated phenotypes with mutants of the phytochrome B photoreceptor, such as delayed seed germination in the dark and long hypocotyl growth. Overexpression of MYC2 in a phyB background partially suppressed its long hypocotyl phenotype. Transcriptomic analysis of multiple myc mutants confirmed that MYCs are required for full expression of red (R) light-regulated genes, including the master regulator HY5. ChIP-seq analyses revealed that MYC2 and MYC3 bind directly to the promoter of HY5 and that HY5 gene expression and protein levels are compromised in multiple myc mutants. Altogether, our results pinpoint MYCs as photomorphogenic TFs that control phytochrome responses by activating HY5 expression. This has important implications in understanding the trade-off between growth and defence as the same TFs that activate defence responses are photomorphogenic growth regulators.
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Affiliation(s)
- Andrés Ortigosa
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), 28049, Madrid, Spain
| | - Sandra Fonseca
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), 28049, Madrid, Spain
| | - José M Franco-Zorrilla
- Genomics Unit, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), 28049, Madrid, Spain
| | - Patricia Fernández-Calvo
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), 28049, Madrid, Spain
| | - Mark Zander
- Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Howard Hughes Medical Institute, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Mathew G Lewsey
- Department of Animal, Plant and Soil Science, La Trobe University, AgriBio Building, Bundoora, VIC, 3086, Australia
- Australian Research Council Research Hub for Medicinal Agriculture, Centre for AgriBioscience, La Trobe University, AgriBio Building, Bundoora, VIC, 3086, Australia
| | - Gloria García-Casado
- Genomics Unit, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), 28049, Madrid, Spain
| | - Gemma Fernández-Barbero
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), 28049, Madrid, Spain
| | - Joseph R Ecker
- Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
- Howard Hughes Medical Institute, The Salk Institute for Biological Studies, La Jolla, CA, 92037, USA
| | - Roberto Solano
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), 28049, Madrid, Spain
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194
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Li N, Cao L, Miu W, Cao R, Peng M, Wan W, Huang LJ. Molecular Rewiring of the Jasmonate Signaling Pathway to Control Auxin-Responsive Gene Expression. Cells 2020; 9:cells9030641. [PMID: 32155843 PMCID: PMC7140437 DOI: 10.3390/cells9030641] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/27/2020] [Accepted: 02/27/2020] [Indexed: 02/02/2023] Open
Abstract
The plant hormone jasmonic acid (JA) has an important role in many aspects of plant defense response and developmental process. JA triggers interaction between the F-box protein COI1 and the transcriptional repressors of the JAZ family that leads the later to proteasomal degradation. The Jas-motif of JAZs is critical for mediating the COI1 and JAZs interaction in the presence of JA. Here, by using the protoplast transient gene expression system we reported that the Jas-motif of JAZ1 was necessary and sufficient to target a foreign reporter protein for COI1-facilitated degradation. We fused the Jas-motif to the SHY2 transcriptional repressor of auxin signaling pathway to create a chimeric protein JaSHY. Interestingly, JaSHY retained the transcriptional repressor function while become degradable by the JA coreceptor COI1 in a JA-dependent fashion. Moreover, the JA-induced and COI1-facilitated degradation of JaSHY led to activation of a synthetic auxin-responsive promoter activity. These results showed that the modular components of JA signal transduction pathway can be artificially redirected to regulate auxin signaling pathway and control auxin-responsive gene expression. Our work provides a general strategy for using synthetic biology approaches to explore and design cell signaling networks to generate new cellular functions in plant systems.
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Affiliation(s)
- Ning Li
- State Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China; (N.L.); (W.M.)
| | - Linggai Cao
- Key Laboratory of Saline-Alkali Vegetation Ecology Restoration (SAVER), Ministry of Education, College of Life Science, Northeast Forestry University, Harbin 150040, China;
| | - Wenzhuo Miu
- State Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China; (N.L.); (W.M.)
| | - Ruibin Cao
- State Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China; (N.L.); (W.M.)
| | - Mingbo Peng
- State Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China; (N.L.); (W.M.)
| | - Wenkai Wan
- State Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China; (N.L.); (W.M.)
| | - Li-Jun Huang
- State Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees, Ministry of Education, College of Forestry, Central South University of Forestry and Technology, Changsha 410004, China; (N.L.); (W.M.)
- Correspondence:
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195
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Monte I, Kneeshaw S, Franco-Zorrilla JM, Chini A, Zamarreño AM, García-Mina JM, Solano R. An Ancient COI1-Independent Function for Reactive Electrophilic Oxylipins in Thermotolerance. Curr Biol 2020; 30:962-971.e3. [PMID: 32142692 DOI: 10.1016/j.cub.2020.01.023] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/26/2019] [Accepted: 01/08/2020] [Indexed: 01/05/2023]
Abstract
The jasmonate signaling pathway regulates development, growth, and defense responses in plants. Studies in the model eudicot, Arabidopsis thaliana, have identified the bioactive hormone (jasmonoyl-isoleucine [JA-Ile]) and its Coronatine Insensitive 1 (COI1)/Jasmonate-ZIM Domain (JAZ) co-receptor. In bryophytes, a conserved signaling pathway regulates similar responses but uses a different ligand, the JA-Ile precursor dinor-12-oxo-10,15(Z)-phytodienoic acid (dn-OPDA), to activate a conserved co-receptor. Jasmonate responses independent of JA-Ile and COI1, thought to be mediated by the cyclopentenone OPDA, have also been suggested, but experimental limitations in Arabidopsis have hindered attempts to uncouple OPDA and JA-Ile biosynthesis. Thus, a clear understanding of this pathway remains elusive. Here, we address the role of cyclopentenones in COI1-independent responses using the bryophyte Marchantia polymorpha, which is unable to synthesize JA-Ile but does accumulate OPDA and dn-OPDA. We demonstrate that OPDA and dn-OPDA activate a COI1-independent pathway that regulates plant thermotolerance genes, and consequently, treatment with these oxylipins protects plants against heat stress. Furthermore, we identify that these molecules signal through their electrophilic properties. By performing comparative analyses between M. polymorpha and two evolutionary distant species, A. thaliana and the charophyte alga Klebsormidium nitens, we demonstrate that this pathway is conserved in streptophyte plants and pre-dates the evolutionary appearance of the COI1-dependent jasmonate pathway, which later co-opted the pre-existing dn-OPDA as its ligand. Taken together, our data indicate that cyclopentenone-regulated COI1-independent signaling is an ancient conserved pathway, whose ancestral role was to protect plants against heat stress. This pathway was likely crucial for plants' successful land colonization and will be critical for adaption to current climate warming.
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Affiliation(s)
- Isabel Monte
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid 28049, Spain
| | - Sophie Kneeshaw
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid 28049, Spain
| | - Jose M Franco-Zorrilla
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid 28049, Spain
| | - Andrea Chini
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid 28049, Spain
| | - Angel M Zamarreño
- Department of Environmental Biology, University of Navarra, Navarra 31008, Spain
| | - Jose M García-Mina
- Department of Environmental Biology, University of Navarra, Navarra 31008, Spain
| | - Roberto Solano
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid 28049, Spain.
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196
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CUL3 BPM E3 ubiquitin ligases regulate MYC2, MYC3, and MYC4 stability and JA responses. Proc Natl Acad Sci U S A 2020; 117:6205-6215. [PMID: 32123086 DOI: 10.1073/pnas.1912199117] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The jasmonate (JA)-pathway regulators MYC2, MYC3, and MYC4 are central nodes in plant signaling networks integrating environmental and developmental signals to fine-tune JA defenses and plant growth. Continuous activation of MYC activity is potentially lethal. Hence, MYCs need to be tightly regulated in order to optimize plant fitness. Among the increasing number of mechanisms regulating MYC activity, protein stability is arising as a major player. However, how the levels of MYC proteins are modulated is still poorly understood. Here, we report that MYC2, MYC3, and MYC4 are targets of BPM (BTB/POZ-MATH) proteins, which act as substrate adaptors of CUL3-based E3 ubiquitin ligases. Reduction of function of CUL3BPM in amiR-bpm lines, bpm235 triple mutants, and cul3ab double mutants enhances MYC2 and MYC3 stability and accumulation and potentiates plant responses to JA such as root-growth inhibition and MYC-regulated gene expression. Moreover, MYC3 polyubiquitination levels are reduced in amiR-bpm lines. BPM3 protein is stabilized by JA, suggesting a negative feedback regulatory mechanism to control MYC activity, avoiding harmful runaway responses. Our results uncover a layer for JA-pathway regulation by CUL3BPM-mediated degradation of MYC transcription factors.
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197
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Zander M, Lewsey MG, Clark NM, Yin L, Bartlett A, Saldierna Guzmán JP, Hann E, Langford AE, Jow B, Wise A, Nery JR, Chen H, Bar-Joseph Z, Walley JW, Solano R, Ecker JR. Integrated multi-omics framework of the plant response to jasmonic acid. NATURE PLANTS 2020; 6:290-302. [PMID: 32170290 PMCID: PMC7094030 DOI: 10.1038/s41477-020-0605-7] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 01/23/2020] [Indexed: 05/17/2023]
Abstract
Understanding the systems-level actions of transcriptional responses to hormones provides insight into how the genome is reprogrammed in response to environmental stimuli. Here, we investigated the signalling pathway of the hormone jasmonic acid (JA), which controls a plethora of critically important processes in plants and is orchestrated by the transcription factor MYC2 and its closest relatives in Arabidopsis thaliana. We generated an integrated framework of the response to JA, which spans from the activity of master and secondary regulatory transcription factors, through gene expression outputs and alternative splicing, to protein abundance changes, protein phosphorylation and chromatin remodelling. We integrated time-series transcriptome analysis with (phospho)proteomic data to reconstruct gene regulatory network models. These enabled us to predict previously unknown points of crosstalk of JA to other signalling pathways and to identify new components of the JA regulatory mechanism, which we validated through targeted mutant analysis. These results provide a comprehensive understanding of how a plant hormone remodels cellular functions and plant behaviour, the general principles of which provide a framework for analyses of cross-regulation between other hormone and stress signalling pathways.
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Affiliation(s)
- Mark Zander
- Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
- Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
- Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Mathew G Lewsey
- Centre for AgriBioscience, Department of Animal, Plant and Soil Sciences, School of Life Sciences, La Trobe University, Melbourne, Victoria, Australia.
- Australian Research Council Industrial Transformation Research Hub for Medicinal Agriculture, Centre for AgriBioscience, La Trobe University, Bundoora, Victoria, Australia.
| | - Natalie M Clark
- Plant Pathology and Microbiology, Iowa State University, Ames, IA, USA
| | - Lingling Yin
- Centre for AgriBioscience, Department of Animal, Plant and Soil Sciences, School of Life Sciences, La Trobe University, Melbourne, Victoria, Australia
- Australian Research Council Industrial Transformation Research Hub for Medicinal Agriculture, Centre for AgriBioscience, La Trobe University, Bundoora, Victoria, Australia
| | - Anna Bartlett
- Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - J Paola Saldierna Guzmán
- Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
- School of Natural Sciences, University of California Merced, Merced, CA, USA
| | - Elizabeth Hann
- Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
- Department of Chemical and Environmental Engineering, Department of Botany and Plant Sciences, University of California, Riverside, CA, USA
| | - Amber E Langford
- Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Bruce Jow
- Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
- Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Aaron Wise
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Joseph R Nery
- Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Huaming Chen
- Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Ziv Bar-Joseph
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Justin W Walley
- Plant Pathology and Microbiology, Iowa State University, Ames, IA, USA
| | - Roberto Solano
- Department of Plant Molecular Genetics, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas (CNB-CSIC), Madrid, Spain
| | - Joseph R Ecker
- Plant Biology Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA.
- Genomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA.
- Howard Hughes Medical Institute, Salk Institute for Biological Studies, La Jolla, CA, USA.
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198
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Liu R, Wang J, Xiao M, Gao X, Chen J, Dai Y. AaCOI1, Encoding a CORONATINE INSENSITIVE 1-Like Protein of Artemisia annua L., Is Involved in Development, Defense, and Anthocyanin Synthesis. Genes (Basel) 2020; 11:genes11020221. [PMID: 32093127 PMCID: PMC7074131 DOI: 10.3390/genes11020221] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 02/11/2020] [Accepted: 02/17/2020] [Indexed: 02/08/2023] Open
Abstract
Artemisia annua is an important medicinal plant producing the majority of the antimalarial compound artemisinin. Jasmonates are potent inducers of artemisinin accumulation in Artemisisa annua plants. As the receptor of jasmonates, the F-box protein COI1 is critical to the JA signaling required for plant development, defense, and metabolic homeostasis. AaCOI1 from Artemisia annua, homologous to Arabidopsis AtCOI1, encodes a F-box protein located in the nuclei. Expressional profiles of the AaCOI1 in the root, stem, leaves, and inflorescence was investigated. The mRNA abundance of AaCOI1 was the highest in inflorescence, followed by in the leaves. Upon mechanical wounding or MeJA treatment, expression of AaCOI1 was upregulated after 6 h. When ectopically expressed, driven by the native promoter from Arabidopsis thaliana, AaCOI1 could partially complement the JA sensitivity and defense responses, but fully complemented the fertility, and the JA-induced anthocyanin accumulation in a coi1-16 loss-of-function mutant. Our study identifies the paralog of AtCOI1 in Artemisia annua, and revealed its implications in development, hormone signaling, defense, and metabolism. The results provide insight into JA perception in Artemisia annua, and pave the way for novel molecular breeding strategies in the canonical herbs to manipulate the anabolism of pharmaceutic compounds on the phytohormonal level.
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Affiliation(s)
- Rong Liu
- Key Laboratory of Plant Development and Environment Adaption, School of Life Sciences, Shandong University, Qingdao 266237, China; (R.L.); (J.W.)
- Key Laboratory of Education, Department of Hunan Province on Plant Genetics and Molecular Biology, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China;
| | - Jinbiao Wang
- Key Laboratory of Plant Development and Environment Adaption, School of Life Sciences, Shandong University, Qingdao 266237, China; (R.L.); (J.W.)
| | - Mu Xiao
- Key Laboratory of Plant Development and Environment Adaption, School of Life Sciences, Shandong University, Qingdao 266237, China; (R.L.); (J.W.)
- Correspondence:
| | - Xiewang Gao
- Key Laboratory of Education, Department of Hunan Province on Plant Genetics and Molecular Biology, College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China;
| | - Jin Chen
- Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (J.C.); (Y.D.)
| | - Yanjiao Dai
- Institute of Agro-Environment and Ecology, Hunan Academy of Agricultural Sciences, Changsha 410125, China; (J.C.); (Y.D.)
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199
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Luo W, Komatsu S, Abe T, Matsuura H, Takahashi K. Comparative Proteomic Analysis of Wild-Type Physcomitrella Patens and an OPDA-Deficient Physcomitrella Patens Mutant with Disrupted PpAOS1 and PpAOS2 Genes after Wounding. Int J Mol Sci 2020; 21:ijms21041417. [PMID: 32093080 PMCID: PMC7073133 DOI: 10.3390/ijms21041417] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/13/2020] [Accepted: 02/17/2020] [Indexed: 12/21/2022] Open
Abstract
Wounding is a serious environmental stress in plants. Oxylipins such as jasmonic acid play an important role in defense against wounding. Mechanisms to adapt to wounding have been investigated in vascular plants; however, those mechanisms in nonvascular plants remain elusive. To examine the response to wounding in Physcomitrella patens, a model moss, a proteomic analysis of wounded P. patens was conducted. Proteomic analysis showed that wounding increased the abundance of proteins related to protein synthesis, amino acid metabolism, protein folding, photosystem, glycolysis, and energy synthesis. 12-Oxo-phytodienoic acid (OPDA) was induced by wounding and inhibited growth. Therefore, OPDA is considered a signaling molecule in this plant. Proteomic analysis of a P. patens mutant in which the PpAOS1 and PpAOS2 genes, which are involved in OPDA biosynthesis, are disrupted showed accumulation of proteins involved in protein synthesis in response to wounding in a similar way to the wild-type plant. In contrast, the fold-changes of the proteins in the wild-type plant were significantly different from those in the aos mutant. This study suggests that PpAOS gene expression enhances photosynthesis and effective energy utilization in response to wounding in P. patens.
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Affiliation(s)
- Weifeng Luo
- Division of Fundamental Agroscience Research, Research Faculty of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan; (W.L.); (T.A.); (H.M.)
| | - Setsuko Komatsu
- Department of Environmental and Food Sciences, Faculty of Environmental and Information Sciences, Fukui University of Technology, 3-6-1 Gakuen, Fukui 910-8505, Japan;
| | - Tatsuya Abe
- Division of Fundamental Agroscience Research, Research Faculty of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan; (W.L.); (T.A.); (H.M.)
| | - Hideyuki Matsuura
- Division of Fundamental Agroscience Research, Research Faculty of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan; (W.L.); (T.A.); (H.M.)
| | - Kosaku Takahashi
- Division of Fundamental Agroscience Research, Research Faculty of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan; (W.L.); (T.A.); (H.M.)
- Department of Nutritional Science, Faculty of Applied Bioscience, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo 165-8502, Japan
- Correspondence:
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200
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Genome-wide and expression pattern analysis of JAZ family involved in stress responses and postharvest processing treatments in Camellia sinensis. Sci Rep 2020; 10:2792. [PMID: 32066857 PMCID: PMC7026426 DOI: 10.1038/s41598-020-59675-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 02/03/2020] [Indexed: 12/22/2022] Open
Abstract
The JASMONATE-ZIM DOMAIN (JAZ) family genes are key repressors in the jasmonic acid signal transduction pathway. Recently, the JAZ gene family has been systematically characterized in many plants. However, this gene family has not been explored in the tea plant. In this study, 13 CsJAZ genes were identified in the tea plant genome. Phylogenetic analysis showed that the JAZ proteins from tea and other plants clustered into 11 sub-groups. The CsJAZ gene transcriptional regulatory network predictive and expression pattern analyses suggest that these genes play vital roles in abiotic stress responses, phytohormone crosstalk and growth and development of the tea plant. In addition, the CsJAZ gene expression profiles were associated with tea postharvest processing. Our work provides a comprehensive understanding of the CsJAZ family and will help elucidate their contributions to tea quality during tea postharvest processing.
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