江西烟区烟草黑胫病菌生理小种研究初报  

Preliminary report of research on Phytophthora parasitica physiological races in tobacco growing areas in Jiangxi province

作　　者：张超群 周泽科[2] 陈荣华 张根平 蒋军喜[2] 

机构地区：[1]江西省烟叶科学研究所,南昌330025 [2]江西农业大学农学院,南昌330045 [3]赣州市烟草科学研究所,赣州341008 [4]江西省瑞金市烟草分公司,瑞金342500

出　　处：《中国烟草学报》2016年第4期107-110,共4页Acta Tabacaria Sinica

基　　金：国家烟草专卖局重点项目(110200902065);江西省烟草专卖局科技项目"江西省烟草有害生物调查研究"(201001021)

摘　　要：为进一步明确江西烟区烟草黑胫病菌的生理小种及其分布,在江西省主要烟区采集烟草黑胫病病株样品80个,从中分离纯化出28个烟草黑胫病菌株。采用游动孢子悬浮液灌根接种鉴别寄主和TTZ培养基颜色反应两种方法鉴定其生理小种类型。结果表明,28个菌株对烟草品种L8具有较强的致病力,对N.nesophila无致病力,在TTZ培养基中皆呈现红色反应,表明其皆为1号生理小种。推测江西烟区烟草黑胫病为害病原菌主要为烟草黑胫病菌1号生理小种。Physiological races of 28 Phytophthora parasitica var. nicotianae strains were isolated from 80 samples collected in tobacco growing areas of Xinfeng, Ruijin, Guangchang and other major areas of Jiangxi province, and were identified by zoospore suspension inoculation and TTZ color reaction. Results showed that all 28 strains were highly pathogenic to tobacco cultivar L8 but not to N.nesophila and all of them presented red reaction on TTC medium, which indicated that all strains belong to physiological race 1.

关 键 词：江西 烟草黑胫病菌 生理小种 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]