Arabidopsis jasmonate signaling pathway.

Details

Serval ID
serval:BIB_E7866D685A20
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Arabidopsis jasmonate signaling pathway.
Journal
Science's STKE
Author(s)
Gfeller A., Liechti R., Farmer E.E.
ISSN
1525-8882 (Electronic)
ISSN-L
1525-8882
Publication state
Published
Issued date
2006
Volume
2006
Number
322
Pages
cm1
Language
english
Abstract
Jasmonates control defense gene expression and male fertility in the model plant Arabidopsis thaliana. In both cases, the involvement of the jasmonate pathway is complex, involving large-scale transcriptional reprogramming. Additionally, jasmonate signaling is hard-wired into the auxin, ethylene, and salicylate signal networks, all of which are under intense investigation in Arabidopsis. In male fertility, jasmonic acid (JA) is the essential signal intervening both at the level of anther elongation and in pollen dehiscense. A number of genes potentially involved in jasmonate-dependent anther elongation have recently been discovered. In the case of defense, at least two jasmonates, JA and its precursor 12-oxo-phytodienoic acid (OPDA), are necessary for the fine-tuning of defense gene expression in response to various microbial pathogens and arthropod herbivores. However, only OPDA is required for full resistance to some insects and fungi. Other jasmonates probably affect yet more physiological responses. A series of breakthroughs have identified the SKP/CULLIN/F-BOX (SCF), CORONATINE INSENSITIVE (COI1) complex, acting together with the CONSTITUTIVE PHOTOMORPHOGENIC 9 (COP9) signalosome, as central regulatory components of jasmonate signaling in Arabidopsis. The studies, mostly involving mutational approaches, have paved the way for suppressor screens that are expected to further extend our knowledge of jasmonate signaling. When these and other new mutants affecting jasmonate signaling are characterized, new nodes will be added to the Arabidopsis Jasmonate Signaling Pathway Connections Map, and the lists of target genes regulated by jasmonates in Arabidopsis will be expanded.
Keywords
Arabidopsis/physiology, Arabidopsis Proteins/physiology, Cyclopentanes/metabolism, Ethylenes/metabolism, Gene Expression Regulation, Plant, Models, Biological, Oxylipins, Plant Growth Regulators/physiology, Salicylates/metabolism, Signal Transduction/physiology
Pubmed
Create date
24/01/2008 20:05
Last modification date
20/08/2019 16:10
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