Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Activation of an EDS1-mediated R-gene pathway in the snc1 mutant leads to constitutive, NPR1-independent pathogen resistance
Autore:
Li, X; Clarke, JD; Zhang, YL; Dong, XN;
Indirizzi:
Duke Univ, Dev Cell & Mol Biol Grp, Dept Biol, Durham, NC 27708 USA Duke Univ Durham NC USA 27708 l Biol Grp, Dept Biol, Durham, NC 27708 USA
Titolo Testata:
MOLECULAR PLANT-MICROBE INTERACTIONS
fascicolo: 10, volume: 14, anno: 2001,
pagine: 1131 - 1139
SICI:
0894-0282(200110)14:10<1131:AOAERP>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYSTEMIC ACQUIRED-RESISTANCE; ENHANCED DISEASE SUSCEPTIBILITY; TOBACCO MOSAIC-VIRUS; SALICYLIC-ACID; ARABIDOPSIS-THALIANA; PLANT-DISEASE; TRANSCRIPTION FACTORS; PSEUDOMONAS-SYRINGAE; SIGNAL; EXPRESSION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
58
Recensione:
Indirizzi per estratti:
Indirizzo: Dong, XN Duke Univ, Dev Cell & Mol Biol Grp, Dept Biol, POB 91000, Durham,NC 27708USA Duke Univ POB 91000 Durham NC USA 27708 1000, Durham, NC 27708USA
Citazione:
X. Li et al., "Activation of an EDS1-mediated R-gene pathway in the snc1 mutant leads to constitutive, NPR1-independent pathogen resistance", MOL PL MICR, 14(10), 2001, pp. 1131-1139

Abstract

The Arabidopsis NPR1 protein is an essential regulatory component of systemic acquired resistance (SAR). Mutations in the NPR1 gene completely block the induction of SAR by signals such as salicylic acid (SA). An Arabidopsismutant, size] (suppressor of npr1-1, constitutive 1), was isolated in a screen for suppressors of npr1-1. In the npr1-1 background, the snc1 mutationresulted in constitutive resistance to Pseudomonas syringae maculicola ES4326 and Peronospora parasitica Noco2. High levels of SA were detected in the mutant and shown to be required for manifestation of the site] phenotype. The snc1 mutation was mapped to the RPP5 resistance (R) gene cluster and the eds1 mutation that blocks RPP5-mediated resistance suppressed snc1. These data suggest that a RPP5-related resistance pathway is activated constitutively in snc1. This pathway does not employ NPR1. but requires the signal molecule SA and the function of EDS1. Moreover, in snc1, constitutive resistance is conferred in the absence of cell death, which is often associated with R-gene mediated resistance.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 09:28:31