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From Wikipedia, the free encyclopedia

Virus classification
Group: Group II (ssDNA)
Family: Plasmavirus
EM of a Plasmavirus.

The Plasmaviridae is a family of bacteriophages, viruses that infects bacteria. Virions have an envelope, a nucleoprotein complex, and a capsid. They are 50-125 nm in diameter with a baggy or loose membrane.



The genome is condensed, non segmented and consists of a single molecule of circular, supercoiled double-stranded DNA, 12000 base pairs in length. The genome has a rather high G-C content of around 32 percent.[1]


A productive infectious cycle begins before a lysogenic cycle establishes the virus in the infected bacteria. After initial infection of the viral genome the virus may become latent within the host. Lysogeny involves integration into the host chromosome.


  1. ^ Büchen-Osmond, C. (Ed) (2003). 00.053. Plasmaviridae. In: ICTVdB - The Universal Virus Database, version 3. Büchen-Osmond, C. (Ed), ICTVdB Management, The Earth Institute and Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA.

External links


Up to date as of January 23, 2010

From Wikispecies


Main Page
Regnum: Virus
Phylum: not divided
Classis: not divided
Ordo: Unassigned
Familia: Plasmaviridae
Genus: Plasmavirus




  • Dybvig, K. & Maniloff, J. 1983: Integration and lysogeny by an enveloped mycoplasma virus. J. Gen. Virol., 64: 1781-1785.
  • Maniloff, J., Kampo, G.K. & Dascher, C.C. 1994: Sequence analysis of a unique temperate phage: mycoplasma virus L2. Gene, 141: 1-8.
  • Poddar, S.K., Cadden, S.P., Das, J. & Maniloff, J. 1985: Heterogeneous progeny viruses are produced by a budding enveloped phage. Intervirology, 23: 208-221.
  • Index of Viruses - Plasmaviridae (2009). In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA. [1]

Vernacular names

English: Acholeplasma bacteriophages


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