A permeable cuticle in Arabidopsis leads to a strong resistance to Botrytis cinerea
- Bessire, Michael Department of Plant Molecular Biology, University of Lausanne, Switzerland
- Chassot, Céline Department of Biology, University of Fribourg, Switzerland
- Jacquat, Anne-Claude Department of Biology, University of Fribourg, Switzerland
- Humphry, Matt Department of Plant–Microbe Interactions, Max Planck Institute for Plant Breeding Research, Köln, Germany
- Borel, Sandra Department of Plant Molecular Biology, University of Lausanne, Switzerland
- MacDonald-Comber Petétot, Jean Department of Plant Molecular Biology, University of Lausanne, Switzerland
- Métraux, Jean-Pierre Department of Biology, University of Fribourg, Switzerland
- Nawrath, Christiane Department of Plant Molecular Biology, University of Lausanne, Switzerland
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29.03.2007
Published in:
- The EMBO Journal. - 2007, vol. 26, no. 8, p. 2158–2168
English
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.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Biologie
- Language
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- English
- Classification
- Biological sciences
- License
- License undefined
- Identifiers
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- RERO DOC 8093
- DOI 10.1038/sj.emboj.7601658
- Persistent URL
- https://folia.unifr.ch/unifr/documents/300347
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