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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 69, Issue 12

sp. nov., isolated from soil on the South Shetland Islands, Antarctica Free

Abstract

A Gram-stain-negative, non-motile, strictly aerobic, coccus-shaped bacterium, designated S14-83, was isolated from a soil sample collected from the South Shetland Islands of Antarctica. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the strain is a novel member of the genus , with as its closest relative (96.1 % similarity). The DNA G+C content of the strain was 61.1 mol% and the major respiratory quinone was MK-8. Major cellular fatty acids were summed feature 3 (Cω7/Cω6) and C. As well as containing glycophospholipid, aminophospholipids and glycolipid as major polar lipids, there were also some unknown polar lipids. The diagnostic diamino acid in the cell-wall peptidoglycan was ornithine, corroborating the assignment of the strain to the genus . Strain S14-83 was shown to be extremely resistant to gamma radiation (>10 kGy) and UV light (460 Jm). On the basis of phylogenetic, chemotaxonomic and phenotypic data presented here, strain S14-83 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is S14-83 (=CCTCC AB 2015449= DSM 105285 ).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Antarctica , Deinococcus psychrotolerans and radiation resistance
© 2019 IUMS
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2019-12-01
2025-03-25
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Deinococcus psychrotolerans sp. nov., isolated from soil on the South Shetland Islands, Antarctica
Int J Syst Evol Microbiol 69, 3696 (2019); https://doi.org/10.1099/ijsem.0.003484
/content/journal/ijsem/10.1099/ijsem.0.003484
/content/journal/ijsem/10.1099/ijsem.0.003484
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