大豆白粉病病原菌鉴定  

The identification of soybean pow dery mildew fungus

作　　者：柳建[1] 姜文涛[1] 安保宁 刘淑艳[1,2] 

机构地区：[1]吉林农业大学农学院,长春130118 [2]吉林农业大学食药用菌教育部工程研究中心,长春130118

出　　处：《植物病理学报》2015年第5期548-551,共4页Acta Phytopathologica Sinica

基　　金：国家自然基金项目(31170013);吉林省教育厅"十二五"科学技术研究项目(吉教科合字[2012]第36号)

摘　　要：大豆白粉病是大豆叶部病害，能降低叶片光合作用，使产量损失高达35％。1921年首次在德国发现，之后在南美和北美陆续发生，在日本、韩国、越南、泰国也有报道。而中国大豆白粉病报道较少，只在吉林、北京、贵州、河北有所报道，Soybean powdery mildew is a common disease, and its pathogen is previously reported as Erysiphe glycines in China. In 2012, soybean powdery mildew was collected in Gongzhuling of Jilin Province and the pathogen was identified as Oidium subgenus Pseudoidium based on the morphological characteristics. A sequence of the ribosomal DNA internal transcribed spacer region including the 5.8S rDNA gene was amplified from the fungus, and was 100% identical to that of Erysiphe diffusa and Oidium sp. records on GenBank, on which the fungus was speculated to be E. diffusa. This was the first report of E. diffusa as a pathogen of soybean in China. The results of this paper will contribute to disease control.

关 键 词：中国大豆 白粉病 病原菌鉴定 叶片光合作用 叶部病害 产量损失 

分 类 号：S435.121.4[农业科学—农业昆虫与害虫防治]