河南农业科学2017，Vol.46Issue(7)：71-76,6.DOI:10.15933/j.cnki.1004-3268.2017.07.012
河南省大白菜根肿病菌生理小种鉴定
Pathotype Identification of Plasmodiophora brassicae Woron.Collected from Chinese Cabbage in Henan Province
摘要
Abstract
In order to clarify the pathotype of Plasmodiophora brassicae Woron.on Chinese cabbage in Henan province,two isolates XY-1 and XY-2 collected from Chinese cabbage clubbed roots in Xinye county,representing original and newly introduced pathogens were identified respectively.The identification was carried out by inoculating spore suspension based on the differential sets of Williams system and ECD system.The result showed that both XY-1 and XY-2 were classified into the pathotype 4 of P.brassicae based on the Williams differential system,while based on the ECD differential system,two different pathotypes were classified with XY-1 as pathotype ECD16/15/31 and XY-2 as pathotype ECD21/31/31.The inoculating test showed that the newly introduced pathogen (XY-2) was more virulent in pathogenicity on Chinese cabbage than the original one (XY-1).The above results indicated that the ECD system was more precise than the Williams system due to lager number and more species of differential hosts used for classification,which could further divide the pathotype 4 into different types.关键词
大白菜/根肿病菌/生理小种/Williams系统/ECD鉴别系统Key words
Chinese cabbage/Plasmodiophora brassicae/pathotype/Williams system/ECD system分类
农业科技引用本文复制引用
原玉香,张晓伟,赵艳艳,魏小春,姚秋菊,蒋武生,王志勇,李扬,许茜,杨双娟..河南省大白菜根肿病菌生理小种鉴定[J].河南农业科学,2017,46(7):71-76,6.基金项目
国家重点研发计划项目(2016YFD0100204-18) （2016YFD0100204-18）
国家大宗蔬菜产业技术体系项目(CARS-25-G-27) （CARS-25-G-27）
河南省科技开放合作项目(162106000011) （162106000011）
河南省专项资金项目(20157805) （20157805）
河南省农业科学院科研发展基金项目(CYC20167804) （CYC20167804）
河南省农业科学院自主创新专项基金项目(2016ZC25) （2016ZC25）
