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Titolo:
The EMB 506 gene encodes a novel ankyrin repeat containing protein that isessential for the normal development of Arabidopsis embryos
Autore:
Albert, S; Despres, B; Guilleminot, J; Bechtold, N; Pelletier, G; Delseny, M; Devic, M;
Indirizzi:
Univignan,gnan, UMR 5545 CNRS, Lab Physiol & Biol Mol Plantes, F-66860 Perp Univ Perpignan Perpignan France F-66860 & Biol Mol Plantes, F-66860 Perp INRA, Stn Genet & Ameliorat Plantes, F-78026 Versailles, France INRA Versailles France F-78026 iorat Plantes, F-78026 Versailles, France
Titolo Testata:
PLANT JOURNAL
fascicolo: 2, volume: 17, anno: 1999,
pagine: 169 - 179
SICI:
0960-7412(199901)17:2<169:TE5GEA>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
AUXIN POLAR TRANSPORT; PLANT EMBRYOGENESIS; LETHAL MUTANTS; THALIANA; EXPRESSION; SYSTEM; MAIZE; DIFFERENTIATION; TRANSFORMATION; SIMILARITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Devic, M Univve,rpignan, UMR 5545 CNRS, Lab Physiol & Biol Mol Plantes, Ave Villeneu Univ Perpignan Ave Villeneuve Perpignan France F-66860 Villeneu
Citazione:
S. Albert et al., "The EMB 506 gene encodes a novel ankyrin repeat containing protein that isessential for the normal development of Arabidopsis embryos", PLANT J, 17(2), 1999, pp. 169-179

Abstract

The EMB 506 gene of Arabidopsis, required for the normal development of the embryo beyond the globular stage, has been cloned. The gene encodes a protein of predicted size 35 kDa that contains five ankyrin (ANK) repeats within the C terminal moiety. ANK repeats are conserved domains of 33 amino acids involved in specific recognition of protein partners. The EMB 506 protein was detected at different stages of silique development but accumulated preferentially in the mature cauline leaves. The rescue of homozygous emb 506 embryos by complementation with the wild-type sequence cDNA demonstrated that the emb mutation is a consequence of the T-DNA insertion and that integration and expression of the transgene occurred during gametogenesis and/or early embryo development. In addition to the drastic effect of the emb 506 mutation during embryo development, complementation experiments revealed another effect of the gene: emb 506 plants transformed with the wild-type EMB 506 sequence were able to produce viable seeds but showed a reduction ofapical dominance and the presence of adventitious buds or bracts along thestem. This result supports the idea that genes essential for embryogenesismay also be required at other stages of the plant life cycle.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 09:22:41