SIGNAL-TRANSDUCTION IN SYSTEMIC ACQUIRED-RESISTANCE

被引：112

作者：

RYALS, J ^{[1
]}

LAWTON, KA ^{[1
]}

DELANEY, TP ^{[1
]}

FRIEDRICH, L ^{[1
]}

KESSMANN, H ^{[1
]}

NEUENSCHWANDER, U ^{[1
]}

UKNES, S ^{[1
]}

VERNOOIJ, B ^{[1
]}

WEYMANN, K ^{[1
]}

机构：

[1] CIBA GEIGY LTD,CH-4002 BASEL,SWITZERLAND

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1995年 / 92卷 / 10期

关键词：

D O I：

10.1073/pnas.92.10.4202

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Systemic acquired resistance (SAR) is an important component of plant defense against pathogen infection, Accumulation of salicylic acid (SA) is required for the induction of SAR. However, SA is apparently not the translocated signal but is involved in transducing the signal in target tissues. Interestingly, SA accumulation is not required for production and release of the systemic signal. In addition to playing a pivotal role in SAR signal transduction, SA is important in modulating plant susceptibility to pathogen infection and genetic resistance to disease, It has been proposed that SA inhibition of catalase results in H2O2 accumulation and that therefore H2O2 serves as a second messenger in SAR signaling, We find no accumulation of H2O2 in tissues expressing SAR; thus the role of H2O2 in SAR signaling is questionable.

引用

页码：4202 / 4205

页数：4

共 27 条

[1] INCREASED TOLERANCE TO 2 OOMYCETE PATHOGENS IN TRANSGENIC TOBACCO EXPRESSING PATHOGENESIS-RELATED PROTEIN-1A [J].