Abstract
Members of the family Pleolipoviridae (termed pleolipoviruses) are pseudo-spherical and pleomorphic archaeal viruses. The enveloped virion is a simple membrane vesicle, which encloses different types of DNA genomes of approximately 7–16 kbp (or kilonucleotides). Typically, virions contain a single type of transmembrane (spike) protein at the envelope and a single type of membrane protein, which is embedded in the envelope and located in the internal side of the membrane. All viruses infect extremely halophilic archaea in the class Halobacteria (phylum Euryarchaeota). Pleolipoviruses have a narrow host range and a persistent, non-lytic life cycle. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the taxonomy of the Pleolipoviridae which is available at www.ictv.global/report/pleolipoviridae.
Highlights
Members of the family Pleolipoviridae (termed pleolipoviruses) are pseudo-spherical and pleomorphic archaeal viruses
Members of the family Pleolipoviridae are pseudo-spherical and pleomorphic archaeal viruses
Pseudo-spherical and pleomorphic virions, typically with a single type of spike protein at the envelope and a single type of internal membrane protein embedded in the envelope
Summary
Members of the family Pleolipoviridae (termed pleolipoviruses) are pseudo-spherical and pleomorphic archaeal viruses. Typical member Halorubrum pleomorphic virus 1 (FJ685651), species Halorubrum virus HRPV1, genus Alphapleolipovirus Pseudo-spherical and pleomorphic virions (diameters 40–70 nm), typically with a single type of spike protein at the envelope and a single type of internal membrane protein embedded in the envelope Circular ssDNA, circular dsDNA or linear dsDNA, approximately 7–16 kilonucleotides or kbp Possibly rolling-circle replication for circular molecules; protein-primed replication for linear molecules Prokaryotic translation using viral mRNA and host ribosomes Archaea, euryarchaeal Halorubrum, Haloarcula or Halogeometricum strains Three genera Alphapleolipovirus, Betapleolipovirus and Gammapleolipovirus
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