Cucumoviruses

被引:416
作者
Palukaitis, P [1 ]
García-Arenal, F
机构
[1] Scottish Crop Res Inst, Gene Express Programme, Dundee DD2 5DA, Scotland
[2] Univ Politecn Madrid, ETSI Agron, Dept Biotecnol, E-28040 Madrid, Spain
来源
ADVANCES IN VIRUS RESEARCH, VOL 62 | 2003年 / 62卷
关键词
D O I
10.1016/S0065-3527(03)62005-1
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Research on the molecular biology of cucumoviruses and their plant-virus interactions has been very extensive in the last decade. Cucumovirus genome structures have been analyzed, giving new insights into their genetic variability, evolution, and taxonomy. A new viral gene has been discovered, and its role in promoting virus infection has been delineated. The localization and various functions of each viral-encoded gene product have been established. The particle structures of Cucumber mosaic virus (CMV) and Tomato aspermy virus have been determined. Pathogenicity domains have been mapped, and barriers to virus infection have been localized. The movement pathways of the viruses in some hosts have been discerned, and viral mutants affecting the movement processes have been identified. Host responses to viral infection have been characterized, both temporally and spatially. Progress has been made in determining the mechanisms of replication, gene expression, and transmission of CMV. The pathogenicity determinants of various satellite RNAs have been characterized, and the importance of secondary structure in satellite RNA-mediated interactions has been recognized. Novel plant genes specifying resistance to infection by CMV have been identified. In some cases, these genes have been mapped, and one resistance gene to CMV has been isolated and characterized. Pathogen-derived resistance has been demonstrated against CMV using various segments of the CMV genome, and the mechanisms of some of these forms of resistances have been analyzed. Finally, the nature of synergistic interactions between CMV and other viruses has been characterized. This review highlights these various achievements in the context of the previous work on the biology of cucumoviruses and their interactions with plants. © 2003 Elsevier Inc. All rights reserved.
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收藏
页码:241 / 323
页数:83
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