Biocontrol of Rhizoctonia solani Kühn Using Fermentative Solution of Streptomyces corchorusii Strain NF0919

作     者：Jinghui YANG Wenwen ZHANG Hongzhou CHEN Ting XIAO Qinyan WU 

作者机构：Zhenjiang Institute of Agricultural Sciences Agricultural Committee of Zhenjiang City 

出 版 物：《Agricultural Biotechnology》 (农业生物技术（英文版）)

年 卷 期：2015年第4卷第1期

页      面：59-61页

学科分类：09[农学] 0904[农学-植物保护] 

基　　金：Supported by Agricultural Science and Technology Independent Innovation Fund of Jiangsu Province[CX(12)5067] 

主　　题：Streptomyces corchorusii Antifungal activity Rhizoctonia solani Kuhn Alkyl glycoside 

摘      要：A strain of Streptomyces corchorusii （NY0919） antagonistic to Rhizoctonia solani Ktthn was isolated, which produced alkyl glycoside with high antifungal activity. To investigate the antifungal activity of Streptomyces corchorusii strain NF0919, the treatments amended with the non-sterilized supernatant resulted in the highest growth inhibition rate of about 100% at a concentration of 20%. The antifungal compound, which inhibited the growth of Rhizoctonia solani Kuhn, was extracted by EtOAC and purified by silica gel, Sephadex LH-20 column, and HPLC, where an active fraction was confirmed by LC-MS and NMR techniques. These results suggested that NF0919 had a high potential in the biocontrol of Rhizoctonia solani Kuhn, which was mainly due to surface active agent APG.