期刊
VIRUS RESEARCH
卷 165, 期 2, 页码 231-235出版社
ELSEVIER
DOI: 10.1016/j.virusres.2012.02.012
关键词
Potexvirus; Potyvirus; Synergism; MicroRNA; Symptom enhancement
类别
资金
- CSIC
- European Social Funds
- MICINN [BIO2009-10172]
- CSIC JAE-Doc
In comparison to single infections, co-infection of Nicotiana benthamiana with Potato virus X (PVX) and Potato virus Y (PVY) or Plum pox virus (PPV), resulted in increased systemic symptoms (synergism in pathology). Previous studies have shown that virus infections affected the accumulation of various microRNAs (miRNAs) and miRNA target genes. Our studies revealed that double infection by PVX and PVY or PPV that produced the most severe symptoms in N. benthamiana altered accumulation of miR156, 171, 398, and 168, and/or their target transcripts to a greater extent or in a different direction than single infections that produced milder symptoms. These findings indicate a differential effect on miRNA metabolism of the combined infection by two unrelated plant viruses, which may account in part for the severe symptoms caused by PVX/potyvirus-associated synergisms. (C) 2012 Elsevier B.V. All rights reserved.
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