Phihlikevirus (synonym: PhiH-like viruses) is a genus of viruses in the family Myoviridae, not assigned to a subfamily. Bacteria and archaea serve as the natural hosts, with transmission achieved through passive diffusion. There is currently one species in this genus: the type species Halobacterium phage phiH.[1]




Phihlikeviruses are nonenveloped, with a head and tail. The head is icosahedral with a diameter of about 64 nm. The tail is around 170  nm long, 18 nm wide, has short terminal fibers, and is contractile.[1]


The genomic sequence is currently unavailable from ICTV.

Life cycle[edit]

The virus attaches to the host cell using its terminal fibers, and ejects the viral DNA into the host cytoplasm via contraction of its tail sheath. Once the viral genes have been replicated, the procapsid is assembled and packed. The tail is then assembled and the mature virions are released via lysis.[1]


According to the ICTV's 1997 report, the genus PhiH-like viruses was first accepted as a new genus in the family Myoviridae, at the same time as its type species. This proposal is available here. The following year (1998), the genus was added to the newly created order Caudovirales. In 1999, a name change is reported, but no change actually occurred. In 2012, the name was changed to Phihlikevirus. This proposal is available here. [2]


  1. ^ a b c "Viral Zone". ExPASy. 
  2. ^ ICTV. "Virus Taxonomy: 2013 Release". Retrieved 17 February 2015. 
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