Arabidopsis jasmonate signaling pathway.

Details

Serval ID
serval:BIB_B0A20DCC335E
Type
Article: article from journal or magazin.
Publication sub-type
Review (review): journal as complete as possible of one specific subject, written based on exhaustive analyses from published work.
Collection
Publications
Institution
Title
Arabidopsis jasmonate signaling pathway.
Journal
Science Signaling
Author(s)
Gfeller A., Liechti R., Farmer E.E.
ISSN
1937-9145 (Electronic)
Publication state
Published
Issued date
2010
Volume
3
Number
109
Pages
cm4
Language
english
Abstract
Jasmonates control defense gene expression, growth, and fertility throughout the plant kingdom and have been studied extensively in Arabidopsis thaliana. The prohormone jasmonic acid (JA) is conjugated to amino acids such as isoleucine to form the active hormone jasmonoyl-isoleucine (JA-Ile). A series of breakthroughs has identified the SCF [SCF consists of four subunits: a cullin, SKP1 (S-phase kinase-associated protein 1), a RING finger protein (RBX1/HRT1/ROC1), and an F-box protein] CORONATINE INSENSITIVE1 (COI1) E3 ubiquitin ligase complex and the JASMONATE ZIM-DOMAIN (JAZ) proteins as central components in the perception of and transcriptional response to JA-Ile. JAZ proteins (most probably as dimers) bind transcription factors such as MYC2 before JA-Ile production. JA-Ile binds to COI1 to facilitate the formation of COI1-JAZ complexes, leading to ubiquitination and subsequent degradation of JAZ proteins. The degradation of JAZ proteins liberates transcription factors that function in the presence of the RNA polymerase II coregulatory complex Mediator to permit the expression of a number of jasmonate-regulated genes. Recent developments include the identification of COI1 as a receptor for jasmonates. Upstream of the signaling events, microRNA319 (miR319) negatively regulates the production of JA and JA-derived signals.
Keywords
Arabidopsis/metabolism, Cyclopentanes/metabolism, Oxylipins/metabolism, Signal Transduction
Pubmed
Web of science
Create date
18/01/2011 15:38
Last modification date
20/08/2019 16:19
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