SALICYLIC-ACID - A LIKELY ENDOGENOUS SIGNAL IN THE RESISTANCE RESPONSE OF TOBACCO TO VIRAL-INFECTION

被引：1050

作者：

MALAMY, J ^{[1
]}

CARR, JP ^{[1
]}

KLESSIG, DF ^{[1
]}

RASKIN, I ^{[1
]}

机构：

[1] RUTGERS STATE UNIV,COOK COLL,CTR AGR MOLEC BIOL,NEW BRUNSWICK,NJ 08903

来源：

SCIENCE | 1990年 / 250卷 / 4983期

关键词：

D O I：

10.1126/science.250.4983.1002

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：

Some cultivars of tobacco are resistant to tobacco mosaic virus (TMV) and synthesize pathogenesis-related (PR) proteins upon infection. In a search for the signal or signals that induce resistance or PR genes, it was found that the endogenous salicylic acid levels in resistant, but not susceptible, cultivars increased at least 20-fold in infected leaves and 5-fold in uninfected leaves after TMV inoculation. Induction of PR1 genes paralleled the rise in salicylic acid levels. Since earlier work has demonstrated that treatment with exogenous salicylic acid induces PR genes and resistance, these findings suggest that salicylic acid functions as the natural transduction signal.

引用

页码：1002 / 1004

页数：3

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