Effect of mycorrhization on the accumulation of rishitin and solavetivone in potato plantlets challenged with Rhizoctonia solani

被引：39

作者：

Yao, MK

Désilets, H

Charles, MT

Boulanger, R

Tweddell, RJ ^{[1
]}

机构：

[1] Univ Laval, Ctr Rech Hort, Quebec City, PQ G1K 7P4, Canada

[2] Agr & Agri Food Canada, St Jean, PQ J3B 3E6, Canada

来源：

MYCORRHIZA | 2003年 / 13卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Solanum tuberosum; Rhizoctonia solani; Glomus etunicatum; rishitin; solavetivone;

D O I：

10.1007/s00572-003-0267-0

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The effect of colonization with the vesicular-arbuscular mycorrhizal fungus Glomus etunicatum on the content of rishitin and solavetivone was determined in potato plants cv. Goldrush challenged with Rhizoctonia solani. Mycorrhization stimulated significantly the accumulation of both phytoalexins in roots of plantlets challenged with R. solani but did not influence phytoalexin levels in non-challenged plantlet roots. No accumulation of solavetivone or rishitin was detected in shoots. In Petri dish bioassays, rishitin and solavetivone inhibited mycelial growth of R. solani.

引用

页码：333 / 336

页数：4

共 22 条

[1] Arbuscular mycorrhizas and biological control of soil-borne plant pathogens - An overview of the mechanisms involved [J].