Arabidopsis jasmonate signaling pathway.

Détails

ID Serval
serval:BIB_B0A20DCC335E
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Synthèse (review): revue aussi complète que possible des connaissances sur un sujet, rédigée à partir de l'analyse exhaustive des travaux publiés.
Collection
Publications
Institution
Titre
Arabidopsis jasmonate signaling pathway.
Périodique
Science Signaling
Auteur(s)
Gfeller A., Liechti R., Farmer E.E.
ISSN
1937-9145 (Electronic)
Statut éditorial
Publié
Date de publication
2010
Volume
3
Numéro
109
Pages
cm4
Langue
anglais
Résumé
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.
Mots-clé
Arabidopsis/metabolism, Cyclopentanes/metabolism, Oxylipins/metabolism, Signal Transduction
Pubmed
Web of science
Création de la notice
18/01/2011 14:38
Dernière modification de la notice
20/08/2019 15:19
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