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栗疫菌弱毒力特征的传递及其影响因素
引用本文:王克荣,周而勋,姜爱萍,成桂英.栗疫菌弱毒力特征的传递及其影响因素[J].林业科学,2004,40(1):185-188.
作者姓名:王克荣  周而勋  姜爱萍  成桂英
作者单位:南京农业大学植物病理学系,南京,210095
基金项目:国家自然科学基金项目资助 (3 0 0 70 494)
摘    要:栗疫菌 (Cryphonectriaparasitica)弱毒力 (hypovirulence)的本质是菌体中含有一种弱毒性病毒 (cryphonectriahypovirulenceviruses ,CHV)dsRNA(Choietal,1992 ;Morrisetal,1979)。栗疫菌的弱毒力菌株 (H菌株 )一般都具有将强毒力 (virulent)菌株 (V菌株 )转化为弱毒力菌株的能

关 键 词:栗疫病菌  真菌病毒  弱毒力转化  营养体亲和群
文章编号:1001-7488(2004)01-0185-04
修稿时间:2002年5月13日

Transmission of dsRNA in Cryphonectria parasitica and it's Affecting Factors
Wang Kerong Zhou Erxun Jiang Aiping Cheng Guiying.Transmission of dsRNA in Cryphonectria parasitica and it''''s Affecting Factors[J].Scientia Silvae Sinicae,2004,40(1):185-188.
Authors:Wang Kerong Zhou Erxun Jiang Aiping Cheng Guiying
Abstract:dsRNA in Cryphonectria parasitica could be transmitted to progeny through conidia with varying efficiency in culture.Both light and prolonging cultural time could reduce the transmission efficiency,but the effect of light was more efficient.No dsRNA segments were found to be loss after 30 generations subculture,indicating that dsRNA could transmitted stably through subculture.Vegetative incompatibility was a barrier for the transfer of dsRNA from one isolate to another,and hypovirulence conversion reduced as the number of different VC genes between donor and recipient isolates increased.
Keywords:Cryphonectria parasitica  Mycovirus  Hypovirulence conversion  Vegetative compatibility group(VCG)
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