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Trends Plant Sci. 2012 Jan;17(1):1-8. doi: 10.1016/j.tplants.2011.10.005. Epub 2011 Nov 17.

Chloroviruses: not your everyday plant virus.

Author information

1
Department of Plant Pathology and Nebraska Center for Virology, University of Nebraska, Lincoln, NE 68583-0900, USA. jvanetten@unlnotes.unl.edu

Abstract

Viruses infecting higher plants are among the smallest viruses known and typically have four to ten protein-encoding genes. By contrast, many viruses that infect algae (classified in the virus family Phycodnaviridae) are among the largest viruses found to date and have up to 600 protein-encoding genes. This brief review focuses on one group of plaque-forming phycodnaviruses that infect unicellular chlorella-like green algae. The prototype chlorovirus PBCV-1 has more than 400 protein-encoding genes and 11 tRNA genes. About 40% of the PBCV-1 encoded proteins resemble proteins of known function including many that are completely unexpected for a virus. In many respects, chlorovirus infection resembles bacterial infection by tailed bacteriophages.

PMID:
22100667
PMCID:
PMC3259250
DOI:
10.1016/j.tplants.2011.10.005
[Indexed for MEDLINE]
Free PMC Article

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