Laboratory of Plant Pathology, Graduate School of Agriculture, Kyoto University, Sakyo-ku, Kyoto, Japan.
Adv Virus Res. 2013;87:37-74. doi: 10.1016/B978-0-12-407698-3.00002-8.
The genus Dianthovirus is one of eight genera in the family Tombusviridae. All the genera have monopartite positive-stranded RNA genomes, except the dianthoviruses which have bipartite genomes. The dianthoviruses are distributed worldwide. Although they share common structural features with the other Tombusviridae viruses in their virions and the terminal structure of the genomic RNAs, the bipartite nature of the dianthovirus genome offers an ideal experimental system with which to study basic issues of virology. The two genomic RNAs seem to use distinct strategies to regulate their translation, transcription, genome replication, genome packaging, and cell-to-cell movement during infection. This review summarizes the current state of our knowledge of the dianthoviruses, with its main emphasis on the molecular biology of the virus, including the viral and host factors required for its infection of host plants. The epidemiology of the virus and the possible viral impacts on agriculture and the environment are also discussed.
该属 Dianthovirus 是病毒科 Tombusviridae 的 8 个属之一。除了 Dianthoviruses 具有二分体基因组外，所有属都具有单分体正链 RNA 基因组。Dianthoviruses 分布于世界各地。尽管它们在病毒粒子和基因组 RNA 的末端结构方面与其他 Tombusviridae 病毒具有共同的结构特征，但 Dianthovirus 基因组的二分体性质为研究病毒学的基本问题提供了一个理想的实验系统。这两个基因组似乎使用不同的策略来调节它们在感染过程中的翻译、转录、基因组复制、基因组包装和细胞间运动。本综述总结了我们目前对 Dianthoviruses 的了解，主要强调病毒的分子生物学，包括病毒和宿主因子，这些因子是病毒感染宿主植物所必需的。还讨论了病毒的流行病学以及病毒对农业和环境的可能影响。
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