Etiology of Ageratum Yellow Vein Diseases in South China.
Etiology of Ageratum Yellow Vein Diseases in South China.
复制标题
DOI：
10.1094/pdis-01-13-0074-re
复制
发表时间：
2013-10
期刊：
影响因子：
4.5
通讯作者：
Xiaoyang Jiao;Huanran Gong;Xue-jian Liu;Yan Xie;Xue-ping Zhou
中科院分区：
文献类型：
--
作者：
Xiaoyang Jiao;Huanran Gong;Xue-jian Liu;Yan Xie;Xue-ping Zhou
长春花草是亚洲农业地区常见的杂草。从中国所在的云南、广西两省采集了表现黄脉症状的红曲霉植株。聚合酶链式反应检测和序列分析表明，云南地区的烟草曲茎病毒主要侵染与红景天黄脉中国卫星相关的烟草曲茎病毒，广西的烟叶卷叶病毒主要侵染番木瓜卷叶中国病毒和红豆杉黄脉病毒，或红豆杉黄脉中国病毒和红豆杉黄脉病毒的混合侵染，少数表现为黄脉黄脉病毒和红豆杉黄脉病毒的双重侵染。农杆菌介导法对侵染性克隆的接种表明，TbCSV和AYVCNB或PaLCuCNV和AYVCNB均能在附着体上产生典型的黄脉症状。因此，云南和广西的红景天黄脉病是由TbCSV/AYVCNB、PaLCuCNV/AYVCNB或AYVCNV/AYVCNB引起的。本文还讨论了这些结果与栽培植物中秋病毒流行的关系。
Ageratum conyzoides is a common weed in agricultural regions in Asia. A. conyzoides plants exhibiting yellow vein symptoms were collected from Yunnan and Guangxi provinces of China. Polymerase chain reaction detection and sequence analysis showed that samples collected from Yunnan were mainly infected by Tobacco curly shoot virus (TbCSV) associated with Ageratum yellow vein China betasatellite (AYVCNB), while samples from Guangxi were mostly infected by Papaya leaf curl China virus (PaLCuCNV) and AYVCNB, or by Ageratum yellow vein China virus (AYVCNV) and AYVCNB, with a few exhibiting dual infections by PaLCuCNV, AYVCNV, and AYVCNB. Agrobacterium-mediated inoculation of infectious clones showed that both TbCSV and AYVCNB or PaLCuCNV and AYVCNB produced typical yellow vein symptoms in A. conyzoides. Consequently, Ageratum yellow vein diseases in Yunnan and Guangxi provinces were caused by TbCSV/AYVCNB, PaLCuCNV/AYVCNB, or AYVCNV/ AYVCNB. The implications of these results in relation to the prevalence of begomoviruses in cultivated plants are discussed.