安徽农业科学2011，Vol.39Issue(24)：14671-14672,14675,3.
致病疫霉拮抗细菌的筛选及抑菌作用研究
Screening of Antagonistic Bacterial Strain against Phytophthora infestans and Its Inhibition Effect
摘要
Abstract
[Objective] The paper was to screen bacterial strain with significant antagonistic effect against Phytophthora infestans, so as to provide basis for further development and utilization of antagonistic bacteria to control P. infestans and potato late bright. [ Method] Plant confrontation and filter paper method was used to determine the inhibition effect of living, fermentation product, and bacterial fluid of 61 strains a-gainst P. infestans and the induced resistance of SR13-2 strain. [Result] The inhibition rate of 24 strains among 61 tested strains against my-celial growth of P. infestans was greater than 60% , and the inhibition effect of HT-6 strain was the strongest with the inhibition rate of 89.92%. However, fermentation product of all tested strains had no significant inhibition effect on P. infestans, while the inhibition effect of bacterial fluid of most strains was significantly higher than living strain; the inhibition effect of S34-1 strain was the strongest with inhibition rate of 91.50%. The bacterial fluid of SR13-2 strain was found to have significant resistance-induction effect with protection rate of 60%. [Conclusion] The inhibition effect of living and fermentation product of antagonistic strains S34-1 and SR13-2 had no relationship with each other, while bacterial fluid had great potential in controlling potato late bright.关键词
致病疫霉/拮抗细菌/活体/茵液/诱导抗病Key words
Phytophthora infestans/ Antagonistic bacteria/ Living strains/ Bacterial fluid/ Induced resistance分类
农业科技引用本文复制引用
李丽艳,蒋继志,郭文..致病疫霉拮抗细菌的筛选及抑菌作用研究[J].安徽农业科学,2011,39(24):14671-14672,14675,3.基金项目
河北省自然科学基金项目(C2011201003). （C2011201003）
