Journal ArticleDOI
Insights into the role of jasmonic acid-mediated defenses against necrotrophic and biotrophic fungal pathogens
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TLDR
A new role for JA in defense against fungal biotrophs is suggested after recent evidence has shown that certain biotrophic fungal species also trigger activation of JA-mediated responses and mutants deficient in JA signaling show an increase in susceptibility to certain biotin-based fungal pathogens.Abstract:
Jasmonic acid (JA) is a natural hormone regulator involved in development, responses against wounding and pathogen attack. Upon perception of pathogens, JA is synthesized and mediates a signaling cascade initiating various defense responses. Traditionally, necrotrophic fungi have been shown to be the primary activators of JAdependent defenses through the JA-receptor, COI1. Conversely, plants infected with biotrophic fungi have classically been associated with suppressing JA-mediated responses. However, recent evidence has shown that certain biotrophic fungal species also trigger activation of JA-mediated responses and mutants deficient in JA signaling show an increase in susceptibility to certain biotrophic fungal pathogens. These findings suggest a new role for JA in defense against fungal biotrophs. This review will focus on recent research advancing our knowledge of JA-dependant responses involved in defense against both biotrophic and necrotrophic fungi.read more
Citations
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The interactive effects of simultaneous biotic and abiotic stresses on plants: Mechanistic understanding from drought and pathogen combination
TL;DR: The effect of combined drought and pathogen infection on plants and the tailored strategies adapted by plants are summarized and enumerate the evidences from pathogen derived elicitors and ABA response studies for understanding simultaneous drought and Pathogen tolerance.
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Jasmonate signaling and manipulation by pathogens and insects.
TL;DR: This review focuses on recent advances in understanding the mechanism underlying the enigmatic switch between transcriptional repression and hormone-dependent transcriptional activation of JA signaling and how interfering with this could be used as a novel means of disease control.
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Chloroplast signaling within, between and beyond cells.
TL;DR: Accumulating evidence highlights that chloroplasts, with their complex signaling pathways, provide a mechanism for exquisite regulation of plant development, metabolism and responses to the environment.
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Mechanisms and strategies of plant defense against Botrytis cinerea
TL;DR: The current understanding of mechanisms regulating plant responses to B. cinerea is reviewed with a particular interest on hormonal regulatory networks involving phytohormones salicylic acid, jasmonic acid, ethylene (ET) and abscisic acid (ABA).
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STRESSing the role of the plant circadian clock
Pil Joon Seo,Paloma Mas +1 more
TL;DR: This review focuses on recent research advances exploring the intricate connection between the clock and osmotic stresses and the role of the circadian clock favoring the proper balance between immune responses and cellular metabolism.
References
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Journal ArticleDOI
Contrasting Mechanisms of Defense Against Biotrophic and Necrotrophic Pathogens
TL;DR: This review summarizes results from Arabidopsis-pathogen systems regarding the contributions of various defense responses to resistance to several biotrophic and necrotrophic pathogens.
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JAZ repressor proteins are targets of the SCF COI1 complex during jasmonate signalling
Bryan Thines,Leron Katsir,Maeli Melotto,Yajie Niu,Ajin Mandaokar,Guanghui Liu,Kinya Nomura,Sheng Yang He,Gregg A. Howe,John Browse +9 more
TL;DR: The results suggest a model in which jasmonate ligands promote the binding of the SCFCOI1 ubiquitin ligase to and subsequent degradation of the JAZ1 repressor protein, and implicate theSCFCOi1–JAZ1 protein complex as a site of perception of the plant hormone JA–Ile.
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The JAZ family of repressors is the missing link in jasmonate signalling
Andrea Chini,Sandra Fonseca,Guillermo Fernández,Bruce Adie,José-Manuel Chico,Oscar Lorenzo,Gloria García-Casado,Irene López-Vidriero,Francisca María Lozano,María Rosa Ponce,José Luis Micol,Roberto Solano +11 more
TL;DR: The identification of JASMONATE-INSENSITIVE 3 (JAI3) and a family of related proteins named JAZ (jasmonate ZIM-domain), in Arabidopsis thaliana and the existence of a regulatory feed-back loop involving MYC2 and JAZ proteins, which provides a mechanistic explanation for the pulsed response to jasmonate and the subsequent desensitization of the cell.
Journal ArticleDOI
Jasmonates: An Update on Biosynthesis, Signal Transduction and Action in Plant Stress Response, Growth and Development
TL;DR: This review summarizes biosynthesis and signal transduction of jasmonates with emphasis on new findings in relation to enzymes, their crystal structure, new compounds detected in the oxylipin andJasmonate families, and newly found functions.
Journal ArticleDOI
COI1: An Arabidopsis Gene Required for Jasmonate-Regulated Defense and Fertility
TL;DR: The coi1 mutation defines an Arabidopsis gene required for response to jasmonates, which regulate defense against insects and pathogens, wound healing, and pollen fertility as mentioned in this paper.