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Viruses of haloarchaea
Alison W S Luk1, Timothy J Williams2, Susanne Erdmann3
1School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia. alisonluk@gmail.com.
Life (Basel, Switzerland)
|November 18, 2014
Summary
Haloarchaeoviruses, viruses infecting salt-loving Archaea, are abundant in hypersaline environments. This review details their diverse morphologies, life cycles, and ecological roles, highlighting their impact on microbial communities.
Area of Science:
- Microbiology
- Virology
- Environmental Science
Background:
- Haloarchaea are dominant in hypersaline environments.
- Haloarchaeoviruses are viruses that infect haloarchaea.
- Haloarchaeoviruses are at least ten times more abundant than their hosts.
Purpose of the Study:
- To overview current knowledge of haloarchaeoviruses.
- To provide information on classification, morphotypes, macromolecules, life cycles, genetic manipulation, gene regulation, and host-virus responses.
- To incorporate knowledge from laboratory, field, genomic, and metagenomic studies.
Main Methods:
- Literature review incorporating laboratory studies.
- Field-based studies of environmental samples.
- Genomic and metagenomic analyses of haloarchaeoviruses.
Main Results:
- Haloarchaeoviruses exhibit diverse morphologies (head-tailed, pleomorphic, spherical, spindle-shaped).
- They belong to families Myoviridae, Siphoviridae, Podoviridae, Pleolipoviridae, Sphaerolipoviridae, and Fuselloviridae.
- Some haloarchaeoviruses have unique properties, while others share features with bacteriophages.
Conclusions:
- Haloarchaeovirus-host interactions influence hypersaline community structure and evolution.
- These viruses play significant roles in the ecology and evolution of hypersaline environments.
- Further investigation of laboratory models and environmental systems is warranted.
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