Salicylic acid accumulation in barley is pathogen specific but not required for defense-gene activation

被引：55

作者：

Vallélian-Bindschedler, L ^{[1
]}

Métraux, JP ^{[1
]}

Schweizer, P ^{[1
]}

机构：

[1] Univ Fribourg, Inst Biol Vegetale, CH-1700 Fribourg, Switzerland

来源：

MOLECULAR PLANT-MICROBE INTERACTIONS | 1998年 / 11卷 / 07期

关键词：

powdery mildew; PR proteins;

D O I：

10.1094/MPMI.1998.11.7.702

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Barley (Hordeum vulgare) seedlings were inoculated with the biotrophic pathogen Erysiphe graminis f. sp. hordei, the biotrophic nonhost pathogen E. graminis f. sp. tritici, and the necrotrophic nonhost pathogen Pseudomonas syringae pv, syringae. The levels of free salicylic acid and of salicylic-acid conjugates remained low after infection with E. graminis f. sp, hordei or E. graminis f. sp. tritici while they increased after inoculation with P, syringae pv. syringae. Pathogenesis-related proteins PR1, PR3 (chitinase), PR5 (thaumatin-like), and PR9 (peroxidase) accumulated after inoculation with all three pathogens.

引用

页码：702 / 705

页数：4

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