An ATP-binding cassette subfamily G full transporter is essential for the retention of leaf water in both wild barley and rice.

Détails

ID Serval
serval:BIB_094EE7512000
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
An ATP-binding cassette subfamily G full transporter is essential for the retention of leaf water in both wild barley and rice.
Périodique
Proceedings of the National Academy of Sciences of the United States of America
Auteur(s)
Chen G., Komatsuda T., Ma J.F., Nawrath C., Pourkheirandish M., Tagiri A., Hu Y.G., Sameri M., Li X., Zhao X., Liu Y., Li C., Ma X., Wang A., Nair S., Wang N., Miyao A., Sakuma S., Yamaji N., Zheng X., Nevo E.
ISSN
1091-6490 (Electronic)
ISSN-L
0027-8424
Statut éditorial
Publié
Date de publication
2011
Volume
108
Numéro
30
Pages
12354-12359
Langue
anglais
Résumé
Land plants have developed a cuticle preventing uncontrolled water loss. Here we report that an ATP-binding cassette (ABC) subfamily G (ABCG) full transporter is required for leaf water conservation in both wild barley and rice. A spontaneous mutation, eibi1.b, in wild barley has a low capacity to retain leaf water, a phenotype associated with reduced cutin deposition and a thin cuticle. Map-based cloning revealed that Eibi1 encodes an HvABCG31 full transporter. The gene was highly expressed in the elongation zone of a growing leaf (the site of cutin synthesis), and its gene product also was localized in developing, but not in mature tissue. A de novo wild barley mutant named "eibi1.c," along with two transposon insertion lines of rice mutated in the ortholog of HvABCG31 also were unable to restrict water loss from detached leaves. HvABCG31 is hypothesized to function as a transporter involved in cutin formation. Homologs of HvABCG31 were found in green algae, moss, and lycopods, indicating that this full transporter is highly conserved in the evolution of land plants.
Mots-clé
ATP-Binding Cassette Transporters/classification, ATP-Binding Cassette Transporters/genetics, Amino Acid Sequence, Base Sequence, Droughts, Evolution, Molecular, Genes, Plant, Hordeum/genetics, Hordeum/metabolism, Membrane Lipids/genetics, Membrane Lipids/metabolism, Molecular Sequence Data, Mutation, Oryza sativa/genetics, Oryza sativa/metabolism, Phylogeny, Plant Leaves/metabolism, Plant Proteins/classification, Plant Proteins/genetics, RNA, Messenger/genetics, RNA, Messenger/metabolism, RNA, Plant/genetics, RNA, Plant/metabolism, Water/metabolism
Pubmed
Web of science
Open Access
Oui
Création de la notice
16/02/2012 15:09
Dernière modification de la notice
20/08/2019 12:31
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