贵州省黔东南州太子参立枯病的病害分析及生防初探  

Disease Analysis and Primary Bio-control Study on Damping-off Disease of Radix pseudostellariae in Guizhou Qiandongnan

作　　者：张国辉[1] 王龙[2] 任永权[1] 贺定翔 兰才武 范成明[4] 陈宇红[4] 胡赞民[4] 

机构地区：[1]凯里学院环境与生命科学分院,贵州凯里556011 [2]中国科学院微生物研究所,北京100101 [3]贵州昌昊中药发展有限公司,贵州凯里556000 [4]中国科学院遗传与发育生物学研究所,北京1001012

出　　处：《中国农学通报》2015年第11期205-209,共5页Chinese Agricultural Science Bulletin

基　　金：国家自然科学基金青年项目"太子参连作障碍的成因及其缓解措施"(31201160);贵州省科技厅联合基金课题"枯草芽孢杆菌对太子参真菌病害的生防研究"(黔科合J字LKK[2013]11号);贵州省普通高等学校黔东南州农林产业病虫害鉴定及有害生物防治创新团队(黔教合人才团队字[2014]48号);贵州省教育厅优秀科研创新团队项目"黔东南生物多样性保护和利用创新团队"(黔教合人才团队字[2013]26)

摘　　要：贵州省黔东南州太子参(Radix pseudostellariae)在每年3—5月份都会发生严重真菌病害,经实地调查、组织分离和显微鉴定,得到主要致病菌为立枯丝核菌(Rhizoctonia solani),其导致的病害为太子参立枯病。同时,还在病土中分离纯化得到对太子参种苗有致病能力的病原菌互隔文链孢霉(Alternaria alternate)。生防试验结果表明,芽孢杆菌(Bacillus spp.)GH18菌株对病原菌立枯丝核菌(Rhizoctonia solani)和病原菌互隔文链孢霉(Alternaria alternate)的抑菌效果显著。The serious fungi disease of Radix pseudostellariae annually occur in Guizhou Qiandongnan fromMarch to May. The main pathogen was Rhizoctonia solani which was obtained by field investigation, tissueisolation and microscopic identification. It could cause the damping- off disease of Radix pseudostellariae.Alternaria alternate was found in disease soil which had pathogenic ability to seedlings of Radix pseudostellariae. The results of primary bio- control study showed that GH18 strain of Bacillus spp. hadsignificant effect on Rhizoctonia solani and Alternaria alternate, respectively.

关 键 词：太子参 立枯病 立枯丝核菌 互隔文链孢霉 芽孢杆菌 

分 类 号：S43[农业科学—农业昆虫与害虫防治]