广东水稻细菌性基腐病的致病性及生物学特性研究  

Pathogenicity and Biological Characters of Erwinia chrysanthemi pv. zeae in Guangdong Province

作　　者：刘琼光[1] 曾宪铭[1] 

机构地区：[1]华南农业大学资源环境学院

出　　处：《华南农业大学学报》1999年第1期9-12,共4页Journal of South China Agricultural University

摘　　要：通过一系列的细菌学性状和致病性试验，鉴定出广东省水稻一种新病害———水稻细菌性基腐病的病原为菊欧氏杆菌玉米致病变种Ｅｒｗｉｎｉａｃｈｒｙｓａｎｔｈｅｍｉｐｖ．ｚｅａｅ，并对该病原菌的生物学特性进行了进一步的研究结果表明：病菌生长的最低温度为１２℃，适宜温度范围２８～３６℃，其中以３２℃最适，最高温度４１℃，致死温度５３℃、１０ｍｉｎ该病菌生长的ｐＨ值范围为ｐＨ５～１１。A series of tests on the characters and pathogenicity of the causal agent of bacterial foot rot of rice in Guangdong Provinces was conducted. And the pathogenic bacteria were identified as Erwinia chrysanthemi pv. zeae. Their biological characters from the tests showed that the minimun,maximum and optium growth temperature of the pathogens were 12、41、28～36 ℃ respectivily.The lethae temperature for the pathogen was 53 ℃,10 minutes lasted.In addition, the pathogenic bacteria could grow from pH 5 to pH 11,and grow well at pH 7.

关 键 词：水稻 细菌性基腐病 致病性 生物学特性 

分 类 号：S435.111.4[农业科学—农业昆虫与害虫防治]