The Arabidopsis mutant cev1 links cell wall signalling to jasmonate and ethylene responses

Ellis, Christine, Karafyllidis, Ioannis, Wasternack, Claus and Turner, John G. (2002) The Arabidopsis mutant cev1 links cell wall signalling to jasmonate and ethylene responses. Plant Cell, 14. pp. 1557-1566. ISSN 1532-298X

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Abstract

Biotic and abiotic stresses stimulate the synthesis of jasmonates and ethylene, which, in turn, induce the expression of genes involved in stress response and enhance defense responses. The cev1 mutant has constitutive expression of stress response genes and has enhanced resistance to fungal pathogens. Here, we show that cev1 plants have increased production of jasmonate and ethylene and that its phenotype is suppressed by mutations that interrupt jasmonate and ethylene signaling. Genetic mapping, complementation analysis, and sequence analysis revealed that CEV1 is the cellulose synthase CeSA3. CEV1 was expressed predominantly in root tissues, and cev1 roots contained less cellulose than wild-type roots. Significantly, the cev1 mutant phenotype could be reproduced by treating wild-type plants with cellulose biosynthesis inhibitors, and the cellulose synthase mutant rsw1 also had constitutive expression of VSP. We propose that the cell wall can signal stress responses in plants.

Item Type: Article
Faculty \ School: Faculty of Science > School of Biological Sciences
UEA Research Groups: Faculty of Science > Research Groups > Plant Sciences
Depositing User: EPrints Services
Date Deposited: 01 Oct 2010 13:37
Last Modified: 14 Dec 2022 10:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/503
DOI: 10.1105/tpc.002022

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