BTH-induced accumulation of extracellular proteins and blackspot disease in rose

被引：13

作者：

Suo, Y ^{[1
]}

Leung, DWM ^{[1
]}

机构：

[1] Univ Canterbury, Dept Plant & Microbial Sci, Christchurch 1, New Zealand

来源：

BIOLOGIA PLANTARUM | 2002年 / 45卷 / 02期

关键词：

acibenzolar-S-methyl; Diplocarpon rosae; induced resistance; intercellular fluid; pathogenesis-related proteins; Rosa hybrida;

D O I：

10.1023/A:1015161110058

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Treatment of rose shoots with 50 muM acibenzolar-S-methyl (BTH) resulted in increased protection against Diplocarpon rosae. This was accompanied by the induction and accumulation of a set of extracellular proteins as shown by SDS-PAGE and 2D-PAGE, Some of these proteins have been identified as PR-1, PR-2, PR-3 and PR-5 proteins by immunoblot analysis probed with tobacco antisera against PR-1c, PR-N, PR-Q and PR-S protein. Most of the extracellular proteins activated by BTH were also induced and found to accumulate in leaves upon infection with Diplocarpon rosae. However, their accumulation was much more pronounced in BTH-pretreated leaves than in water-pretreated leaves upon a challenge inoculation with D. rosae, particularly, the 15 kD PR-1, 36 and 37 kD PR-2 proteins. They may be more important in the expression of disease resistance.

引用

页码：273 / 279

页数：7

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