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Titolo:
The disease resistance signaling components EDS1 and PAD4 are essential regulators of the cell death pathway controlled by LSD1 in arabidopsis
Autore:
Rusterucci, C; Aviv, DH; Holt, BF; Dangl, JL; Parker, JE;
Indirizzi:
Univ N Carolina, Dept Biol, Chapel Hill, NC 27599 USA Univ N Carolina Chapel Hill NC USA 27599 Biol, Chapel Hill, NC 27599 USA John Innes Inst, Sainsbury Lab, Norwich NR4 7UH, Norfolk, England John Innes Inst Norwich Norfolk England NR4 7UH NR4 7UH, Norfolk, England Univ N Carolina, Curriculum Genet & Mol Biol, Chapel Hill, NC 27599 USA Univ N Carolina Chapel Hill NC USA 27599 Biol, Chapel Hill, NC 27599 USA
Titolo Testata:
PLANT CELL
fascicolo: 10, volume: 13, anno: 2001,
pagine: 2211 - 2224
SICI:
1040-4651(200110)13:10<2211:TDRSCE>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
SYSTEMIC ACQUIRED-RESISTANCE; SALICYLIC-ACID ACCUMULATION; POWDERY MILDEW INTERACTION; DEFENSE GENE INDUCTION; NITRIC-OXIDE; HYPERSENSITIVE RESPONSE; PERONOSPORA-PARASITICA; SUSCEPTIBILITY MUTANTS; DEFICIENT MUTANTS; H2O2 ACCUMULATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
68
Recensione:
Indirizzi per estratti:
Indirizzo: Dangl, JL Univ N Carolina, Dept Biol, CB 3280, Chapel Hill, NC 27599 USA Univ N Carolina CB 3280 Chapel Hill NC USA 27599 l, NC 27599 USA
Citazione:
C. Rusterucci et al., "The disease resistance signaling components EDS1 and PAD4 are essential regulators of the cell death pathway controlled by LSD1 in arabidopsis", PL CELL, 13(10), 2001, pp. 2211-2224

Abstract

Specific recognition of pathogens is mediated by plant disease resistance (R) genes and translated into a successful defense response. The extent of associated hypersensitive cell death varies from none to an area encompassing cells surrounding an infection site, depending on the R gene activated. We constructed double mutants in Arabidopsis between positive regulators ofR function and a negative regulator of cell death, LSD1, to address whether genes required for normal R function also regulate the runaway cell deathobserved in lsd1 mutants. We report here that EDS1 and PAD4, two signalinggenes that mediate some but not all R responses, also are required for runaway cell death in the lsd1 mutant. Importantly, this novel function of EDS1 and PAD4 is operative when runaway cell death in lsd1 is initiated through an R gene that does not require EDS1 or PAD4 for disease resistance. NDR1, another component of R signaling, also contributes to the control of plant cell death. The roles of EDS1 and PAD4 in regulating lsd1 runaway cell death are related to the interpretation of reactive oxygen intermediate-derived signals at infection sites. We further demonstrate that the fate of superoxide at infection sites is different from that observed at the leading margins of runaway cell death lesions in lsd1 mutants.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/03/20 alle ore 12:38:45