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Titolo:
Fusicoccin, 14-3-3 proteins, and defense responses in tomato plants
Autore:
Roberts, MR; Bowles, DJ;
Indirizzi:
Univ York, Dept Biol, Plant Lab, York YO10 5YW, N Yorkshire, England Univ York York N Yorkshire England YO10 5YW O10 5YW, N Yorkshire, England
Titolo Testata:
PLANT PHYSIOLOGY
fascicolo: 4, volume: 119, anno: 1999,
pagine: 1243 - 1250
SICI:
0032-0889(199904)119:4<1243:F1PADR>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
MEMBRANE H+-ATPASE; MULTIPLE SIGNALING PATHWAYS; ISOFORM-SPECIFIC MANNER; BINDING COMPLEX; 14-3-3-PROTEINS ASSOCIATE; ARABIDOPSIS-THALIANA; REGULATORY PROTEINS; NITRATE REDUCTASE; FUNGAL PATHOGENS; PROTON PUMP;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Roberts, MR Univndork, Dept Biol, Plant Lab, POB 373, York YO10 5YW, N Yorkshire, Engla Univ York POB 373 York N Yorkshire England YO10 5YW ire, Engla
Citazione:
M.R. Roberts e D.J. Bowles, "Fusicoccin, 14-3-3 proteins, and defense responses in tomato plants", PLANT PHYSL, 119(4), 1999, pp. 1243-1250

Abstract

Fusicoccin (FC) is a fungal toxin that activates the plant plasma membraneHC-ATPase by binding with 14-3-3 proteins, causing membrane hyperpolarization. Here we report on the effect of FC on a gene-for-gene pathogen-resistance response and show that FC application induces the expression of severalgenes involved in plant responses to pathogens. Ten members of the PC-binding 14-3-3 protein gene family were isolated from tomato (Lycopersicon esculentum) to characterize their role in defense responses. Sequence analysis is suggestive of common biochemical functions for these tomato 14-3-3 proteins, but their genes showed different expression patterns in leaves after challenges. Different specific subsets of 14-3-3 genes were induced after treatment with FC and during a gene-for-gene resistance response. Possible roles for the H+-ATPase and 14-3-3 proteins in responses to pathogens are discussed.

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Documento generato il 01/12/20 alle ore 15:59:55