基于环式等温扩增的烟草青枯病病原菌快速检测方法

被引:7
作者
贾蒙骜 [1 ]
陈兴江 [1 ]
林叶春 [1 ,2 ]
商胜华 [1 ]
机构
[1] 贵州省烟草科学研究院烟草行业烟草分子遗传重点实验室
[2] 中国农业大学农学与生物技术学院
关键词
烟草; 茄科劳尔氏菌; fliC基因; 环介导的等温扩增;
D O I
暂无
中图分类号
S435.72 [烟草病虫害];
学科分类号
090401 ; 090402 ;
摘要
针对烟草青枯病的防控,开发快速、高效的病原菌检测方法是必要的。环式等温扩增(LAMP)是一种在等温条件下快速完成靶标基因扩增的新方法。将青枯病菌贵州分离株FQY4基因组序列(NCBI号:CP004013)与其他已发表菌株序列比对分析,确定编码鞭毛蛋白的fliC基因的保守区域可被选作检测靶标。根据LAMP原理以及靶标序列的特点,设计了一组由6条引物组成的环式等温扩增反应体系。结果表明:61℃条件下孵育45min,可完成对青枯病病原菌单菌落和带菌烟草叶片的检测,结果判定可以通过颜色变化被肉眼直接识别,也可以通过琼脂糖凝胶电泳检测。通过这种新方法,可以实现对青枯病菌菌落的快速鉴别,还可以用于对田间疑似带病烟草植株的快速检测。
引用
收藏
页码:93 / 98
页数:6
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