小麦细菌性叶鞘褐腐病及其病原鉴定  

Bacterial sheath brown rot of wheat and its identification of the causal organism in China

作　　者：徐福寿[1] 沈筱玉[2] 谢关林[3] 罗远婵[3] 

机构地区：[1]杭州市植物保护站,杭州310020 [2]浙江医药高等专科学校,宁波315100 [3]浙江大学生物技术研究所,杭州310029

出　　处：《植物保护学报》2007年第1期27-31,共5页Journal of Plant Protection

基　　金：国家自然科学基金(30370951);杭州市重大科技项目(200432239)

摘　　要：为搞清杭州小麦上一新发生病害的病原,从病区获得6份小麦病株样本的症状,经初步的植物细菌学特性分析,鉴定为细菌病害。6个分离细菌经32项生理生化反应、菌落形态、致病性、Bi- olog、脂肪酸分析及与6个标准菌株比较,证实了这种小麦叶鞘褐腐病是由Pseudomonas fuscovagi- nae Miyajima,Tanii & Akita引起,与水稻细菌性叶鞘褐腐病为同一病原。It is necessary for us to determine the causal organism of a new wheat disease in Hangzhou so as to control the disease effectively. The disease was diagnosed as bacterial pathogen based on the symptoms and the primary plant bacteriological tests of 6 diseased samples. The six fluorescent bacterial isolates were isolated from the samples of bacterial sheath brown rot on wheat in Xiaoshan County of Zhejiang Province, China. They were identified as Pseudomonas fuscovaginae Miyajima, Tanii ＆ Akita after 32 items of bacteriological tests, colony morphology and pathogenicity test, Biolog and FAME analysis compared with the 6 standard reference strains. It is firstly confirmed in China that P. fuscovaginae is the causal organism of bacterial sheath brown rot of wheat as well as the same pathogen of bacterial sheath brown rot of rice.

关 键 词：小麦叶鞘褐腐病病菌 细菌学 Biolog鉴定 脂肪酸鉴定 致病性 

分 类 号：S435.121[农业科学—农业昆虫与害虫防治]