摘要
高温处理瓜枝孢菌(Cladosporium cucumernium)分生孢子获得了耐热、低致病力的非亲和菌株,试验证明菌株的非亲和性长期保持稳定。耐高温瓜枝孢非亲和菌株可显著激发黄瓜(Cucumis sativus L.)对黑星病的抗性,其诱导抗病的能力稳定遗传,但诱导抗病性表达有一迟滞期。诱导接种浓度越高,诱导抗病效果越显著,挑战接种浓度高,诱导的抗病效果差。
The incompatible isolates of Cladosporium with heat-resisting and low pathoge nisity was obtained by high temperature treatments. It was showed that the low pathogenicity of C. cucumernium is stability. The heat-resistance isolates of C. cucumernium could induce cucumber scab resistance, and the induced resistance ability could inheritance, however there was a lag stage in the induced resistance expression. The induced resistance effect increased with the increase of induced inoculum concentration, and challenge inoculum concentration increased, induced effect reduced.
出处
《园艺学报》
CAS
CSCD
北大核心
2008年第3期363-370,共8页
Acta Horticulturae Sinica
基金
国家‘十一五’科技支撑项目(2006BAD17B07
2006BAD07B02)
国家自然科学基金项目(30370983)
科技部科研院所社会公益研究专项项目(2004DIB4J153)
农业部蔬菜遗传与生理重点开放实验室项目
关键词
黄瓜
黄瓜黑星病
瓜枝孢菌
抗热性
热处理
致病力
诱导抗病性
cucumber
cucumber scab
Cladosporium pathogenicity
induction disease-resistance
heat-resistance
heat treatment
