上海地区黄瓜靶斑病病原鉴定及ITS的分析  

Pathogen Identification of Cucumber Target Spot Disease in Shanghai and Its ITS Sequence Analysis

作　　者：曾蓉[1] 陆金萍[1] 戴富明[1] 

机构地区：[1]上海市农业科学院植物保护研究所上海市设施园艺重点实验室,上海201403

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)

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.

关 键 词：黄瓜 多主棒孢霉 鉴定 ITS序列 

分 类 号：S436.421[农业科学—农业昆虫与害虫防治]