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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 67, Issue 9

gen. nov., sp. nov., a member of the family isolated from ocean sediment Free

Abstract

A Gram-stain-negative, non-motile, strictly aerobic bacterium designated BW11-2 was isolated from marine sediment of the south-west Indian Ocean. Cells of BW11-2 were rod-shaped, endospore-forming, 0.3–0.5 µm wide, 1.8–2.0 µm long, catalase-positive and oxidase-negative. The isolate was capable of growing at 15–45 °C (optimum 30 °C), pH 5–9 (optimum 7) and with 0.5–10 % (w/v) NaCl (optimum 3 %). Based on 16S rRNA gene sequence similarities, BW11-2 was shown to belong to the family within the phylum and formed a distinct lineage, showing the highest sequence similarities to closely related genera: (93.9–94.7 %), (93.3–93.7 %), (93.5 %), s (92.9–93.1 %) and (92.6–93.0 %). BW11-2 shared the highest 16S rRNA gene sequence similarity with the species (94.7 %). The predominant fatty acids (>10 %) were anteiso-C and iso-C. The major quinone was menaquinone-7 (MK-7). Major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and one unidentified aminolipid. The genomic DNA G+C content of strain BW11-2 was 43.3 mol%. On the basis of the morphological and chemotaxonomic characteristics as well as genotypic data, strain BW11-2 represents a novel genus and species in the family , for which the name gen. nov., sp. nov. is proposed. Strain BW11-2 (=CICC 24196=JCM 31924) is the type strain.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): deep-sea bacteria , Gram-negative , sediment , Southwest Indian Ocean and Swionibacillus sediminis
© 2017 IUMS
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2017-09-01
2024-04-19
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Swionibacillus sediminis gen. nov., sp. nov., a member of the family Bacillaceae isolated from ocean sediment
Int J Syst Evol Microbiol 67, 3440 (2017); https://doi.org/10.1099/ijsem.0.002133
/content/journal/ijsem/10.1099/ijsem.0.002133
/content/journal/ijsem/10.1099/ijsem.0.002133
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