The angiospermous root parasite Orobanche L. (Orobanchaceae) induces expression of a pathogenesis related (PR) gene in susceptible tobacco roots

被引：48
|
作者：
Joel, DM [1 ]
Portnoy, VH [1 ]
机构：
[1] Agr Res Org, Dept Weed Res, Newe Yaar Res Ctr, IL-30095 Ramat Yishay, Israel
来源：
ANNALS OF BOTANY | 1998年 / 81卷 / 06期
关键词：
haustorium; Nicotiana tabacum; Orobanche aegyptiaca; parasitic plants; PR proteins; tobacco;
D O I：
10.1006/anbo.1998.0629
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Parasitic plants develop a haustorium that intrudes host tissues. In roots of transgenic PRb-1b-GUS tobacco the expression of the chimeric gene was prominent near Orobanche infection. The expression of the pathogenesis related (PR) protein gene in Orobanche-infected roots indicates that Orobanche releases appropriate elicitors, and that the susceptible plant does sense Orobanche invasion. The Orobanche-responsive promoter may be a useful tool in engineering resistances to this parasitic weed. (C) 1998 Annals of Botany Company.
引用
收藏
页码：779 / 781
页数：3
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