A member of the PLEIOTROPIC DRUG RESISTANCE family of ATP binding cassette transporters is required for the formation of a functional cuticle in Arabidopsis.

Détails

ID Serval
serval:BIB_76E686191E77
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
A member of the PLEIOTROPIC DRUG RESISTANCE family of ATP binding cassette transporters is required for the formation of a functional cuticle in Arabidopsis.
Périodique
Plant Cell
Auteur(s)
Bessire M., Borel S., Fabre G., Carraça L., Efremova N., Yephremov A., Cao Y., Jetter R., Jacquat A.C., Métraux J.P., Nawrath C.
ISSN
1532-298X (Electronic)
ISSN-L
1040-4651
Statut éditorial
Publié
Date de publication
2011
Volume
23
Numéro
5
Pages
1958-1970
Langue
anglais
Résumé
Although the multilayered structure of the plant cuticle was discovered many years ago, the molecular basis of its formation and the functional relevance of the layers are not understood. Here, we present the permeable cuticle1 (pec1) mutant of Arabidopsis thaliana, which displays features associated with a highly permeable cuticle in several organs. In pec1 flowers, typical cutin monomers, such as ω-hydroxylated fatty acids and 10,16-dihydroxypalmitate, are reduced to 40% of wild-type levels and are accompanied by the appearance of lipidic inclusions within the epidermal cell. The cuticular layer of the cell wall, rather than the cuticle proper, is structurally altered in pec1 petals. Therefore, a significant role for the formation of the diffusion barrier in petals can be attributed to this layer. Thus, pec1 defines a new class of mutants. The phenotypes of the pec1 mutant are caused by the knockout of ATP BINDING CASSETTEG32 (ABCG32), an ABC transporter from the PLEIOTROPIC DRUG RESISTANCE family that is localized at the plasma membrane of epidermal cells in a polar manner toward the surface of the organs. Our results suggest that ABCG32 is involved in the formation of the cuticular layer of the cell wall, most likely by exporting particular cutin precursors from the epidermal cell.
Pubmed
Web of science
Open Access
Oui
Création de la notice
16/02/2012 15:09
Dernière modification de la notice
20/08/2019 14:34
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