云南烟草上1种新的细菌性病害病原鉴定
Acta Phytopathologica Sinica(2009)
Abstract
2006~2007年在云南文山州的西畴县和保山市的昌宁县发现1种由细菌侵染引起的烟草新病害.主要发生在苗期(漂浮育苗)和移栽期,症状开始为白色至暗绿色小斑点、湿腐和茎上出现褐色斑点,在KB培养基上产生荧光.根据致病性、菌体形态、培养性状、生理生化反应、Biolog测试和16S rDNA序列分析将该病原菌鉴定为铜绿假单胞菌(Pseudomonas aeruginosa).尽管该病害曾在菲律宾发生,但在中国尚属首次报道.
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Key words
biolog,16s rdna,pathogenicity,pseudomonas aeruginosa,genetic analysis
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