Laboratory of Molecular Biology and Virology, Wageningen University, Wageningen, the Netherlands.
Mol Plant Pathol. 2002 Nov 1;3(6):411-8. doi: 10.1046/j.1364-3703.2002.00135.x.
SUMMARY Taxonomy: Cowpea mosaic virus (CPMV) is the type member of the Comoviridae and bears a strong resemblance to animal picornaviruses, both in gene organization and in the amino acid sequence of replication proteins. Little systematic work has been done to compare isolates of the virus from different parts of the world. Physical properties: Purified preparations of virus contain three centrifugal components; empty protein shells without RNA (T) and two nucleoprotein components (M and B), containing 24% and 34% RNA, respectively. The icosahedral particles have with a diameter of 28 nm, consist of 60 copies of two coat proteins, and are heat stable. Hosts: CPMV causes one of the most commonly reported virus diseases of cowpea (Vigna unguiculata), in which it produces chlorotic spots with diffuse borders in inoculated primary leaves. Trifoliate leaves develop a bright yellow or light green mosaic of increasing severity in younger leaves. The host range is rather limited, and few hosts are known outside the Leguminosae. The virus is transmitted by various beetles with biting mouthparts. Reported in Africa, the Philippines and Iran. Is apparently absent from North and South America. Useful website: http://mmtsb.scripps.edu/viper/1cpmv.html (structure); http://image.fs.uidaho.edu/vide/descr254.htm (general information).
摘要 分类：豇豆花叶病毒（CPMV）是 Comoviridae 的模式成员，在基因组织和复制蛋白的氨基酸序列方面与动物小核糖核酸病毒非常相似。很少有系统的工作来比较来自世界不同地区的病毒分离物。 物理特性：纯化的病毒制剂含有三种离心成分；无 RNA 的空蛋白壳（T）和两种核蛋白成分（M 和 B），分别含有 24%和 34%的 RNA。二十面体颗粒的直径为 28nm，由 60 个两种外壳蛋白组成，耐热。 宿主：CPMV 引起豇豆（Vigna unguiculata）最常见的病毒病之一，在接种的初生叶中产生具有扩散边界的褪绿斑。三叶叶在较年轻的叶子中出现越来越严重的亮黄色或浅绿色镶嵌。宿主范围相当有限，豆科以外的宿主很少。该病毒通过各种具有咀嚼口器的甲虫传播。在非洲、菲律宾和伊朗有报道。显然不存在于北美和南美。有用的网站：http://mmtsb.scripps.edu/viper/1cpmv.html（结构）；http://image.fs.uidaho.edu/vide/descr254.htm（一般信息）。
