摘要
贵州省黔东南州太子参(Pseudostellaria heterophyllariae)近年来发生3种严重病害,通过对太子参发病叶片和块茎的病症观察,用组织分离法分离病株和土壤病原微生物后再用16Sr DNA测序和形态学鉴定方法对所得菌株进行鉴定,其病原菌分别为茄匐柄霉(Stemphylium solani)和尖孢镰刀菌(Fusarium oxysporum)、互隔文链孢霉(Alternaria alternata)和立枯丝核菌(Rhizoctonia solani)。同时,在太子参根腐病的病土中也分离出病原菌匍枝根霉(Rhizopus slolonifer)。这些病原菌导致的病害为太子参褐斑病、太子参立枯病和太子参腐烂病。
Based on investigation and symptom observation,pathogens of three kinds of serious disease on Pseudostellaria heterophyllariae,which occurred in Qiandongnan state,Guizhou province in past two years,were isolated from soil.Pathogenic microorganisms were identified by 16 S r DNA sequencing and morphological method.The results showed that the pathogens were Stemphylium solani,Alternaria alternate,Rhizoctonia solani and Fusarium oxysporum.And Rhizopus slolonifer was also isolated in rot disease soil.These pathogens caused leaf spot disease,blight disease and root rot disease of P.heterophyllariae respectively.
出处
《中国植保导刊》
北大核心
2015年第11期14-17,共4页
China Plant Protection
基金
贵州省科技厅联合基金(黔科合J字LKK[2013]11号)
贵州省普通高等学校创新团队项目(黔教合人才团队字[2014]48号)
国家自然科学基金青年项目(31201160)
凯里学院“精品资源共享课题”(JZGX201404))
关键词
太子参
茄匐柄霉
互隔文链孢霉
立枯丝核菌
尖孢镰刀菌
Pseudostellaria heterophyllariae
Stemphylium solani
Alternaria alternate
Rhizoctonia solani
Fusarium oxysporum
