利用氯酸钾毒性,诱变棉花枯萎病菌产生硝酸盐利用缺陷型突变体(nit)。在485个 nit 突变体中,生理表现型以 nit A 为最多,nit B 和 nit C 次之,nit D 极少。不同生理表现型之间的互补关系复杂。对107个菌株的突变体间进行营养体亲和性测...利用氯酸钾毒性,诱变棉花枯萎病菌产生硝酸盐利用缺陷型突变体(nit)。在485个 nit 突变体中,生理表现型以 nit A 为最多,nit B 和 nit C 次之,nit D 极少。不同生理表现型之间的互补关系复杂。对107个菌株的突变体间进行营养体亲和性测定的结果表明,95个菌株属于同一个营养体亲和群 VCG_1,6个菌株属于VCG_2,另有2个菌株为单菌株亲和群。展开更多
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 l...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.展开更多
文摘利用氯酸钾毒性,诱变棉花枯萎病菌产生硝酸盐利用缺陷型突变体(nit)。在485个 nit 突变体中,生理表现型以 nit A 为最多,nit B 和 nit C 次之,nit D 极少。不同生理表现型之间的互补关系复杂。对107个菌株的突变体间进行营养体亲和性测定的结果表明,95个菌株属于同一个营养体亲和群 VCG_1,6个菌株属于VCG_2,另有2个菌株为单菌株亲和群。
文摘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.
