江西烟区烟草黑胫病菌生理小种研究初报
Acta Tabacaria Sinica（2016）
Abstract
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.
MoreKey words
Jiangxi,Phytophthora parasitica var.nicotianae,physiological race
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