应用生态学报2011，Vol.22Issue(11)：3003-3010,8.
秦岭太白山北坡土壤拮抗性放线菌分布及特性
Distribution and characteristics of soil antagonistic actinomycetes on northern slope of Taibai Mountain, Qinling
摘要
Abstract
Twelve representative soil samples were collected from different altitudes on the northern slope of Taibai Mountain to study the distribution and characteristics of soil antagonistic actinomyces by using agar block method. There existed a great deal of soil antagonistic actinomyces in the study area. Among the 141 actinomycete strains isolated, 116 strains (82. 3% ) showed antagonism toward 12 target bacteria or fungi. The antagonistic strains at altitudes 800-1845, 3488, 3655, and 3670 m occupied 73.7% -86.8% , 81.3% , 78.9% and 82.3% of the total, respectively. 42. 1% of the strains at altitudes 1200-2300 m and >3400 m showed strong and broad spectrum antagonistic activity, suggesting that there was a great potential for the isolation of actinomycete strains with strong anti-biotic capability at these altitudes. 24. 1 % of the antagonistic actinomycetes showed antagonism against Staphyloccocus aureu, and 2.4% , 6.9% and 11. 2% of them showed activity toward Verticillium dahliae in cotton, Phytophthora sp. In strawberry and Neonectria radkiccla in ginseng, respectively. This study showed that the soil actinomycete antagonistic potentiality (SAAP) could be used as a quantitative indicator to evaluate the potential of antagonistic actinomycete resources in soil.关键词
放线菌/微生物生态/微生物资源Key words
actinomycetes/microbial ecology/microbial resources.分类
生物科学引用本文复制引用
朱文杰,薛泉宏,曹艳茹,薛磊,申光辉,来航线..秦岭太白山北坡土壤拮抗性放线菌分布及特性[J].应用生态学报,2011,22(11):3003-3010,8.基金项目
长江学者和创新团队发展计划项目(IRT0748)资助. （IRT0748）
