论文部分内容阅读
采自福建各地蕉区的不同香蕉束顶病毒株类型之间致病性和介体蚜虫的传病率有明显的差异，进一步依其在香蕉品种台湾蕉和Ｗｉｌｉａｍｓ上的反应、香蕉交脉蚜的传病率、毒株类型之间的交互保护和血清学测定结果等，把香蕉束顶病毒区分为ＢＢＴＶ－Ｓ（重型）和ＢＢＴＶ－Ｍ（轻型）两个株系。ＢＢＴＶ－Ｍ和ＢＢＴＶ－Ｓ均能引致香蕉叶片上的青筋症状，两者在血清学上有密切关系，但ＢＢＴＶ－Ｍ仅引致植株产生少量青筋，而ＢＢＴＶ－Ｓ除引致香蕉植株上有大量青筋之外，还引致严重矮化、束顶以及轻度黄化，ＢＢＴＶ－Ｍ的潜育期较ＢＢＴＶ－Ｓ明显长，香蕉交脉蚜对ＢＢＴＶ－Ｓ的传病率大大高于对ＢＢＴＶ－Ｍ的传病率，ＢＢＴＶ－Ｍ对ＢＢＴＶ－Ｓ有强的保护作用
The pathogenicity of different banana bunchy top virus strains collected from the banana area in Fujian Province and the prevalence of the aphid were significantly different. Based on their responses to banana and Wiliams, , The cross protection of serotypes and the results of serology. The banana bunchy top virus was divided into two lines BBTV-S (heavy type) and BBTV-M (light type). Both BBTV-M and BBTV-S could induce the symptoms of green veins on banana leaves, which were closely related to serology. However, BBTV-M caused only a small amount of vetiver in plants and BBTV-S caused a large amount of veins in banana plants In addition, BBTV-S had a significantly longer incubation period than that of BBTV-S. The prevalence of BBTV-S in B. avium was significantly higher than that of BBTV-M The prevalence of BBTV-M has a strong protective effect on BBTV-S