不同来源的洋葱伯克氏菌基因型对洋葱的致病性分析  

Pathogenicity of Burkholderia cepacia complex genomovars from diverse sources on onion

作　　者：张立新[1] 宋江华[2] 

机构地区：[1]安徽农业大学植物保护学院,合肥230036 [2]安徽农业大学园艺学院,合肥230036

出　　处：《植物保护》2009年第2期117-120,共4页Plant Protection

基　　金：安徽省教育厅自然科学基金(KJ2008B212);安徽农业大学引进人才科研资助项目(yj2007-11)

摘　　要：通过对农田环境和医院的洋葱伯克氏菌基因型在洋葱上的致病性研究,结果表明,来源于根围的基因型Ⅲ和基因型Ⅰ的部分菌株,以及来源于医院的基因型Ⅰ和Ⅲ菌株均能使洋葱鳞茎腐烂,表现出与洋葱致病菌LMG1222相似的致病症状,但基因型Ⅴ和Ⅸ没有使洋葱发病。农田和医院环境中均存在对洋葱致病的洋葱伯克氏菌,而且各基因型对洋葱的致病性有差异。The pathogenicity of Burkholderia cepacia complex （Bcc） genomovars from agricultural environment and clinical samples on onion was studied. The results showed that the genomovar Ⅲ and some of the genomovar Ⅰ strains from rhizospheres, and genomovar Ⅰ and Ⅲ strains from clinic caused symptoms similar to that of the CK strain LMG1222, while genomovar Ⅴ and Ⅸ did not. It is suggested that the Bcc strains pathogenic to onion exists in agricultural and clinical areas, and the pathogenicity was different among Bcc genomovars.

关 键 词：洋葱伯克氏菌 基因型 洋葱 致病性 

分 类 号：S432.42[农业科学—植物病理学]