A permeable cuticle in Arabidopsis leads to a strong resistance to Botrytis cinerea.
Details
Serval ID
serval:BIB_78E5DC16C513
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
A permeable cuticle in Arabidopsis leads to a strong resistance to Botrytis cinerea.
Journal
EMBO Journal
ISSN
0261-4189 (Print)
ISSN-L
0261-4189
Publication state
Published
Issued date
2007
Volume
26
Number
8
Pages
2158-2168
Language
english
Abstract
The plant cuticle composed of cutin, a lipid-derived polyester, and cuticular waxes covers the aerial portions of plants and constitutes a hydrophobic extracellular matrix layer that protects plants against environmental stresses. The botrytis-resistant 1 (bre1) mutant of Arabidopsis reveals that a permeable cuticle does not facilitate the entry of fungal pathogens in general, but surprisingly causes an arrest of invasion by Botrytis. BRE1 was identified to be long-chain acyl-CoA synthetase2 (LACS2) that has previously been shown to be involved in cuticle development and was here found to be essential for cutin biosynthesis. bre1/lacs2 has a five-fold reduction in dicarboxylic acids, the typical monomers of Arabidopsis cutin. Comparison of bre1/lacs2 with the mutants lacerata and hothead revealed that an increased permeability of the cuticle facilitates perception of putative elicitors in potato dextrose broth, leading to the presence of antifungal compound(s) at the surface of Arabidopsis plants that confer resistance to Botrytis and Sclerotinia. Arabidopsis plants with a permeable cuticle have thus an altered perception of their environment and change their physiology accordingly.
Keywords
Arabidopsis, Arabidopsis Proteins/genetics, Arabidopsis Proteins/metabolism, Botrytis, Coenzyme A Ligases/genetics, Coenzyme A Ligases/metabolism, Gas Chromatography-Mass Spectrometry, Immunity, Innate/physiology, Membrane Lipids/biosynthesis, Microscopy, Electron, Transmission, Permeability, Plant Diseases/microbiology, Plant Epidermis/metabolism, Plant Epidermis/ultrastructure, Plant Leaves/chemistry
Pubmed
Web of science
Open Access
Yes
Create date
24/01/2008 19:49
Last modification date
20/08/2019 14:35