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Titolo:
Identification and cloning of a negative regulator of systemic acquired resistance, SNlI1, through a screen for suppressors of npr1-1
Autore:
Li, X; Zhang, YL; Clarke, JD; Li, Y; Dong, XN;
Indirizzi:
Duke Univ, Dept Bot, Dev Cell & Mol Biol Grp, Durham, NC 27708 USA Duke Univ Durham NC USA 27708 v Cell & Mol Biol Grp, Durham, NC 27708 USA
Titolo Testata:
CELL
fascicolo: 3, volume: 98, anno: 1999,
pagine: 329 - 339
SICI:
0092-8674(19990806)98:3<329:IACOAN>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
TOBACCO MOSAIC-VIRUS; SALICYLIC-ACID; RETINOBLASTOMA PROTEIN; DISEASE RESISTANCE; GENE-EXPRESSION; KAPPA-B; ARABIDOPSIS; MUTANT; SIGNAL; TRANSCRIPTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Dong, XN Duke Univ, Dept Bot, Dev Cell & Mol Biol Grp, Durham, NC 27708 USA Duke Univ Durham NC USA 27708 Mol Biol Grp, Durham, NC 27708 USA
Citazione:
X. Li et al., "Identification and cloning of a negative regulator of systemic acquired resistance, SNlI1, through a screen for suppressors of npr1-1", CELL, 98(3), 1999, pp. 329-339

Abstract

Systemic acquired resistance (SAR) is a plant immune response induced after a local infection by necrotizing pathogens. The Arabidopsis NPR1 gene is a positive regulator of SAR, essential for transducing the SAR signal salicylic acid (SA). Mutations in the NPR1 gene abolish the SA-induced expression of pathogenesis-related (PR) genes and resistance to pathogens. To identify additional regulators of SAR, we screened for suppressors of npr1-1. In the npr1-1 background, the sni1 (suppressor of npr1-1, inducible 1) mutant shows near wild-type levels of PR1 expression and resistance to pathogens after induction. Restoration of SAR in npr1-1 by the recessive sni1 mutationindicates that wild-type SNI1 may function as a negative regulator of SAR. We cloned the SNI1 gene and found that it encodes a leucine-rich nuclear protein.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 15:41:41