茭白胡麻叶斑病病原菌分离与鉴定
Plant Protection（2020）
Abstract
茭白胡麻叶斑病发生普遍且严重,已成为茭白的常见病害.为了明确病原菌,先后从茭白主产区采集胡麻叶斑病病叶,各产区分离纯化5～10株病原菌.通过对菌株DNA的内转录间隔区ITS基因、3磷酸甘油醛脱氢酶GPDH基因、延伸因子EF-1α基因的序列进行分析.结合形态学观察、致病力测定等方法对茭白胡麻叶斑病病菌进行鉴定.结果 表明,茭白胡麻叶斑病病原菌为稻平脐蠕孢Bipolaris oryzae,与水稻胡麻叶斑病病原菌一致.本文的研究成果可为茭白胡麻叶斑病的防治提供一种新的思路.
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