摘要
病毒种类鉴定结果表明我国草莓主要栽培区存在草莓斑驳病毒、草莓轻型黄边病毒、草莓镶脉病毒和草莓皱缩病毒。四种病毒的总侵染株率达80.2%,其中单种病毒侵染株率为41.6%,两种或两种以上病毒复合侵染株率为38.6%。前三种病毒均为球状病毒,粒体直径分别为25—30nm、23nm和50nm;皱缩病毒为杆状病毒,大小为380×70nm。传染性试验的结果证实,草莓病毒可通过嫁接、菟丝子传染,但不能通过机械传染。桃蚜可传染斑驳病毒和轻型黄边病毒,其传毒关系前者为非持久性后者为持久性。田间桃蚜蚜虫口密度高峰期与草莓病毒侵染盛期相吻合。
The results showed that there were four viruses in main strawberry producing regions in China, which were strawberry mottle virus, strawbe rry mild yellow edge virus,strawberry vein banding virus and strawberry crinkle virus.The percentage of strawberry plants infected by all these viruses attained 80,2%,in which 41.6% by one and 38.6% by two or more viruses.SMoV, SMYEV and SVBV were isometric particles 25-30nm,23nm and 50nm in diameter respectively, and SCrV was bacilliform particle 380×70nm in size.The results confirmed that these viruses could be transmitted by grafting ang dodders, but not by sap. Myzus persicae could transmit SMoV and SMYEV, in nonpersistent and persistent way respectively. The population pear of M. persicae occurred was a great coincidental with the infection by strawberry viruses in the field.
出处
《植物病理学报》
CAS
CSCD
北大核心
1991年第1期9-14,共6页
Acta Phytopathologica Sinica
