广东西瓜果斑病的病原鉴定  

Identification for Pathogen of Bacterial Fruit Blotch of Watermelon in Guangdong Province

作　　者：任小平 李小妮 王琳 孙嘉祥 吴九玲 刘琼光[3] 

机构地区：[1]广东省植物检疫站,广东广州510500 [2]海丰县植物检疫站,广东海丰516400 [3]华南农业大学资源环境学院,广东广州510642

出　　处：《华南农业大学学报》2010年第4期40-43,共4页Journal of South China Agricultural University

基　　金：广东省植物防疫检疫研究专项"瓜类果斑病菌的检测技术及种传机制研究"(4200-F09043)

摘　　要：在反季节种植的西瓜上发现1种新细菌病害,其症状与西瓜果斑病菌相似,通过病原菌的分离纯化,接种试验,菌体形态观察,染色反应、培养性状和生理生化特性测定,以及细菌的16S rDNA基因序列分析,确认该病原细菌为燕麦嗜酸菌西瓜亚种Acidovorax avenae subsp. citrulli.A pathogenic bacterium causing fruit blotch of watermelon in the planting areas in Guangdong Province in 2008 was identified The pathogenic bacterium was isolated and its morphological,inoculation tests,staining,physiological and biochemical characteristics,as well as the pathogenicity and the 16S rDNA sequence were tested.The results showed that the pathogen from watermelon was identified as Acidovorax avenae subsp.citrulli.

关 键 词：西瓜 果斑病菌 病原鉴定 燕麦噬酸菌西瓜亚种 

分 类 号：S432.42[农业科学—植物病理学]