Regulation of growth-defense balance by the JASMONATE ZIM-DOMAIN (JAZ)-MYC transcriptional module

Regulation of growth-defense balance by the JASMONATE ZIM-DOMAIN (JAZ)-MYC transcriptional module

© 2017 The Authors. New Phytologist © 2017 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 215(2017), 4 vom: 10. Sept., Seite 1533-1547
1. Verfasser: Major, Ian T (VerfasserIn)
Weitere Verfasser: Yoshida, Yuki, Campos, Marcelo L, Kapali, George, Xin, Xiu-Fang, Sugimoto, Koichi, de Oliveira Ferreira, Dalton, He, Sheng Yang, Howe, Gregg A
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article gene cluster glucosinolate growth-defense tradeoffs jasmonate (JA) plant defense plant hormone plant-insect interaction triterpenoid Anthocyanins mehr... Arabidopsis Proteins Cyclopentanes Oxylipins RNA, Messenger Transcription Factors Chlorophyll 1406-65-1 jasmonic acid 6RI5N05OWW
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245 1 0 |a Regulation of growth-defense balance by the JASMONATE ZIM-DOMAIN (JAZ)-MYC transcriptional module 
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500 |a CommentIn: New Phytol. 2017 Sep;215(4):1291-1294. - PMID 28771818 
500 |a Citation Status MEDLINE 
520 |a © 2017 The Authors. New Phytologist © 2017 New Phytologist Trust. 
520 |a The plant hormone jasmonate (JA) promotes the degradation of JASMONATE ZIM-DOMAIN (JAZ) proteins to relieve repression on diverse transcription factors (TFs) that execute JA responses. However, little is known about how combinatorial complexity among JAZ-TF interactions maintains control over myriad aspects of growth, development, reproduction, and immunity. We used loss-of-function mutations to define epistatic interactions within the core JA signaling pathway and to investigate the contribution of MYC TFs to JA responses in Arabidopsis thaliana. Constitutive JA signaling in a jaz quintuple mutant (jazQ) was largely eliminated by mutations that block JA synthesis or perception. Comparison of jazQ and a jazQ myc2 myc3 myc4 octuple mutant validated known functions of MYC2/3/4 in root growth, chlorophyll degradation, and susceptibility to the pathogen Pseudomonas syringae. We found that MYC TFs also control both the enhanced resistance of jazQ leaves to insect herbivory and restricted leaf growth of jazQ. Epistatic transcriptional profiles mirrored these phenotypes and further showed that triterpenoid biosynthetic and glucosinolate catabolic genes are up-regulated in jazQ independently of MYC TFs. Our study highlights the utility of genetic epistasis to unravel the complexities of JAZ-TF interactions and demonstrates that MYC TFs exert master control over a JAZ-repressible transcriptional hierarchy that governs growth-defense balance 
650 4 |a Journal Article 
650 4 |a gene cluster 
650 4 |a glucosinolate 
650 4 |a growth-defense tradeoffs 
650 4 |a jasmonate (JA) 
650 4 |a plant defense 
650 4 |a plant hormone 
650 4 |a plant-insect interaction 
650 4 |a triterpenoid 
650 7 |a Anthocyanins  |2 NLM 
650 7 |a Arabidopsis Proteins  |2 NLM 
650 7 |a Cyclopentanes  |2 NLM 
650 7 |a Oxylipins  |2 NLM 
650 7 |a RNA, Messenger  |2 NLM 
650 7 |a Transcription Factors  |2 NLM 
650 7 |a Chlorophyll  |2 NLM 
650 7 |a 1406-65-1  |2 NLM 
650 7 |a jasmonic acid  |2 NLM 
650 7 |a 6RI5N05OWW  |2 NLM 
700 1 |a Yoshida, Yuki  |e verfasserin  |4 aut 
700 1 |a Campos, Marcelo L  |e verfasserin  |4 aut 
700 1 |a Kapali, George  |e verfasserin  |4 aut 
700 1 |a Xin, Xiu-Fang  |e verfasserin  |4 aut 
700 1 |a Sugimoto, Koichi  |e verfasserin  |4 aut 
700 1 |a de Oliveira Ferreira, Dalton  |e verfasserin  |4 aut 
700 1 |a He, Sheng Yang  |e verfasserin  |4 aut 
700 1 |a Howe, Gregg A  |e verfasserin  |4 aut 
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