摘要
2010年秋季在上海奉贤一有刺黄瓜大棚内,黄瓜中下部叶片上出现一种圆形、多角形或不规则形灰白色病斑,其病斑中央有黄褐色斑点,株发病率达100%。根据病原菌形态,并通过病原菌rDNA ITS的序列测定、比对及进化树分析,上海地区黄瓜叶片上出现的靶斑症状其病原为多主棒孢霉(Corynespora cassiicola)。
In autumn of 2010, a new type of symptom, circular, poly-angular or irregular, gray lesions, typically featured with straw yellow target-spot in the center, was observed on the thorn cucumber leaves with the 100 ~ plant incidence in a greenhouse in Fengxian district of Shanghai. Based on morphological identification, rDNA ITS sequence comparison and phylogenetic analyses, Corynespora cassiicola is identified as the pathogen for the target spot disease on leaves of cucumber in Shanghai.
出处
《上海交通大学学报（农业科学版）》
2011年第4期13-16,31,共5页
Journal of Shanghai Jiaotong University(Agricultural Science)
基金
上海市科技兴农重点攻关项目(沪农科攻字(2008)第8-3号
沪农科攻字(2010)第4-1号)
上海市农业科技成果转化资金项目(103919N1300)
关键词
黄瓜
多主棒孢霉
鉴定
ITS序列
Cucumis sativus
Corynespora cassiicola
identification
ITS sequence
