期刊
ENVIRONMENTAL MICROBIOLOGY REPORTS
卷 8, 期 4, 页码 431-444出版社
WILEY
DOI: 10.1111/1758-2229.12385
关键词
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资金
- Academy of Finland [272853, 283072, 255342]
- University of Helsinki
- Academy of Finland (AKA) [272853, 255342, 283072, 283072, 255342, 272853] Funding Source: Academy of Finland (AKA)
Interaction of viruses and cells has tremendous impact on cellular and viral evolution, nutrient cycling and decay of organic matter. Thus, viruses can indirectly affect complex processes such as climate change and microbial pathogenicity. During recent decades, studies on extreme environments have introduced us to archaeal viruses and viruses infecting extremophilic bacteria or eukaryotes. Hypersaline environments are known to contain strikingly high numbers of viruses (approximate to 10(9) particles per ml). Halophilic archaea, bacteria and eukaryotes inhabiting hypersaline environments have only a few cellular predators, indicating that the role of viruses is highly important in these ecosystems. Viruses thriving in high salt are called haloviruses and to date more than 100 such viruses have been described. Virulent, temperate, and persistent halovirus life cycles have been observed among the known isolates including the recently described SNJ1-SNJ2 temperate virus pair which is the first example of an interplay between two haloviruses in one host cell. In addition to direct virus and cell isolations, metagenomics have provided a wealth of information about virus-host dynamics in hypersaline environments suggesting that halovirus populations and halophilic microorganisms are dynamic over time and spatially distributed around the highly saline environments on the Earth.
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