当前位置: 首页 > 文章 > 大豆疫霉菌子1代单游动孢株群体毒力变异 中国油料作物学报 2007,29 (4) 460-465
Position: Home > Articles > Variation in virulence among first generation single-zoospore colonies from different Phytophthora sojae parents Chinese Journal of Oil Crop Sciences 2007,29 (4) 460-465

大豆疫霉菌子1代单游动孢株群体毒力变异

作  者:
李莹;杨明秀;文景芝
单  位:
东北农业大学农学院植物保护系
关键词:
大豆疫霉菌;子1代单游动孢株群体;毒力
摘  要:
采用大豆幼苗下胚轴伤口接种法测定了7个大豆疫霉菌的68个1代单游动孢株的毒力,并对其中45个1代单游动孢株毒力进行聚类分析。结果表明,1代单游动孢株中已无与其出发菌株毒力相同的个体,变异率高达100%。与出发菌株相比,子代单游动孢株个体毒力总体表现为减弱,但来源于同一个出发菌株的无性繁殖后代之间的毒力基本保持一致。
译  名:
Variation in virulence among first generation single-zoospore colonies from different Phytophthora sojae parents
作  者:
LI Ying,YANG Ming-xiu,WEN Jing-zhi* (Department of Plant Protection,Agricultural College,Northeast Agricultural University,Harbin 150300,China)
关键词:
Phytophthora sojae;First generation single zoospore;Virulence
摘  要:
Sixty-eight first single-zoospore colonies,generated from seven Phytophthora sojae isolates,were inoculatied on wounded soybean hypocotyle to evaluated their virulence.No one shaw same virulence as their parents.The virulence of the progenies was inclined to be subdued.The progenies from same parents exhibited similar virulence.

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