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Viruses 2009, 1(3), 1325-1350; doi:10.3390/v1031325

Satellite RNAs and Satellite Viruses of Plants

1
Graduate Institute of Biotechnology, National Chung Hsing University, Taichung, 402, Taiwan
2
Institute of Plant and Microbial Biology, Academia Sinica, Taipei, 115, Taiwan
*
Author to whom correspondence should be addressed.
Received: 28 October 2009 / Revised: 7 December 2009 / Accepted: 7 December 2009 / Published: 18 December 2009
(This article belongs to the Special Issue Subviral RNAs)
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Abstract

The view that satellite RNAs (satRNAs) and satellite viruses are purely molecular parasites of their cognate helper viruses has changed. The molecular mechanisms underlying the synergistic and/or antagonistic interactions among satRNAs/satellite viruses, helper viruses, and host plants are beginning to be comprehended. This review aims to summarize the recent achievements in basic and practical research, with special emphasis on the involvement of RNA silencing mechanisms in the pathogenicity, population dynamics, and, possibly, the origin(s) of these subviral agents. With further research following current trends, the comprehensive understanding of satRNAs and satellite viruses could lead to new insights into the trilateral interactions among host plants, viruses, and satellites.
Keywords: satellite RNA; satellite virus; replication; RNA silencing; pathogenicity satellite RNA; satellite virus; replication; RNA silencing; pathogenicity
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Hu, C.-C.; Hsu, Y.-H.; Lin, N.-S. Satellite RNAs and Satellite Viruses of Plants. Viruses 2009, 1, 1325-1350.

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