| 陕西棉花黄萎病菌致病力分化及其营养亲和性 |
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| 引用本文： | 李 卫,侯丽娟,刘燕霞,毛 岚,杨家荣,俞 征.陕西棉花黄萎病菌致病力分化及其营养亲和性[J].西北农业学报,2010,19(8):90-94. |
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| 作者姓名： | 李 卫 侯丽娟 刘燕霞 毛 岚 杨家荣 俞 征 |
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| 作者单位： | 西北农林科技大学,植物保护学院,陕西省农业分子生物学重点实验室,陕西杨凌,712100 |
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| 基金项目： | 国家公益性农业科研专项，高等学校学科创新引智计划项目 |
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| 摘 要： | 为了揭示陕西棉花黄萎病菌遗传变异,对采自陕西关中棉区17个棉花黄萎病菌株以及西北农林科技大学植保学院棉病实验室保存的T-9菌株、VD-8菌株、泾阳菌株和安阳菌株进行培养特性、致病力和营养亲和性测定。结果表明,21个供试菌株存在强、中、弱的致病力分化,其中强致病力类型11个,占52.38%;中等致病力类型6个,占28.57%;弱致病力类型4个,占19.05%。营养亲和性测定表明,21个菌株可划分为3个营养亲和群(Vegetative compatibility groups,VCGs),其中T-9菌株与VD-8菌株属于营养亲和群Ⅱ(VCG2),安阳菌株属于营养亲和群Ⅲ(VCG3),其余18个菌株属于营养亲和群Ⅰ(VCG1)。根据Nit突变体互补测定,供试菌株的营养亲和群与其致病力强弱具有一定相关性。在测试的陕西关中棉区17个棉花黄萎病菌株中,未发现落叶型菌株。
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| 关 键 词： | 棉花黄萎病菌 致病力分化 营养亲和性 落叶型 |
Pathogenicity Differentiation and Vegetative Compatibility Determination of Cotton Verticilium dahliae in Shaanxi |
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| LI Wei,HOU Lijuan,LIU Yanxi,MAO Lan,YANG Jiarong and YU Zheng.Pathogenicity Differentiation and Vegetative Compatibility Determination of Cotton Verticilium dahliae in Shaanxi[J].Acta Agriculturae Boreali-occidentalis Sinica,2010,19(8):90-94. |
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| Authors: | LI Wei HOU Lijuan LIU Yanxi MAO Lan YANG Jiarong and YU Zheng |
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| Institution: | LI Wei,HOU Lijuan,LIU Yanxia,MAO Lan,YANG Jiarong and YU Zheng(College of Plant Protection and Shaanxi Key Laboratory of Molecular Biology for Agricultrue,Norhwest A&F University,Yangling Shaanxi 712100,China) |
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| Abstract: | In order to explore the genetic variation of cotton Verticilium dahliae determination of culture characteristics on medium,pathogeniticity and vegetative compatibility was conducted with 17 representative strains of V.dahliae of cotton collected from Shaanxi Guanzhong cotton growing regions and T-9 strain,VD-8 strain,Jingyang strain and Anyang strain kept in the laboratory of cotton diseases research.Results showed that all strains can be classified into strong,intermediate and weak pathogenicity types.Amon... |
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| Keywords: | Verticilium dahliae Pathogenicity differentiation Vegetative compatibility Defoliation strain |
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