]*>","")" /> Identification on Pathogen of Wilt Disease and Root Rot of Melon in Xinjiang
Xinjiang Agricultural Sciences

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Identification on Pathogen of Wilt Disease and Root Rot of Melon in Xinjiang

KANG Feng;WANG Xian-lei;LI Guan   

  • Received:2010-06-25 Revised:2010-06-25 Online:2010-06-25 Published:2010-06-25

新疆甜瓜枯萎病、根腐病病原菌鉴定

康锋;王贤磊;李冠   

  1. 新疆大学生命科学与技术学院,乌鲁木齐,830046





摘要： [目的]采用形态学观察和分子鉴定方法对甜瓜病原菌新疆株(前人鉴定为枯萎病病原菌Fusarium oxysporum(Schi)f.sp.melonis Snyder et Hansen)、枯萎病病原菌辽宁株和根腐病病原菌(Fusarium solani (Mart.) Sacc.)进行研究,确定病原菌新疆株的种类.[结果]对病原菌新疆株进行形态学观察发现其有蓝色色素,维管束变褐不向上发展.此后又对三种病原菌进行了大亚基rDNA-D1/D2区序列分析、rDNA-ITS区序列分析,两者分析结果表明病原菌新疆株与根腐病病原菌同源性高.[结论]分子鉴定与形态学鉴定结果一致,表明病原菌新疆株为腐皮镰孢菌(Fusarium solani (Mart.) Sacc.)而非尖镰孢菌(Fusarium axysporum(Schi.)f.sp.melonis Snyder et Hansen),是根腐病病原菌,与前人鉴定结果不同.