期刊论文

Research Progress on Potato Virus A

中文

中国马铃薯

1672-3635

2013

2

100-105

10.3969/j.issn.1672-3635.2013.02.011

湖南省研究生科研创新项目基金（CX2011B307）；

本校为第一机构

马铃薯A病毒(Potato virus A, PVA)是马铃薯生产上危害较严重的病毒之一. PVA已知的寄主为茄科植物,在马铃薯上引起的症状与气候条件、马铃薯品种和PVA的株系有关. PVA基因组与其他PVY属已知序列的病毒核苷酸序列同源性在53%~58%之间,编码的11种蛋白在基因组复制、蛋白加工、蚜虫传毒、系统移动以及与寄主组分互作等方面具有各自的功能.马铃薯对PVA的抗性分为过敏抗性(HR)和极端抗性(ER)两类,植物对PVA的抗性机制主要分为显性基因介导的抗性、隐性基因介导的抗性、 RNA介导的抗性. PVA的致病机理、 PVA抗性基因挖掘和抗PVA转基因新策略将是今后的研究重点.

Potato virus A （PVA） causes serious viral disease in potato production. The host range of PVA is restricted to Solanaceae, and symptoms caused by PVA on potato depend on climatic conditions, potato cultivar and PVA strain. Overall nucleotide sequence of PVA identity compared with other completely sequenced potyvirus genomes is between 53% and 58 %. The PVA genome is expressed as a single polyprotein that is subsequently cleaved to 11 mature proteins functioned in DNA replication, protein processing, aphid transmission, systemic movement and i...