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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 67, Issue 9

sp. nov., isolated from fresh water lake sediment Free

Abstract

A novel actinobacterial strain, designated X17, was isolated from the sediment of Taihu Lake in China and its taxonomic position was investigated by using a polyphasic approach. The isolate formed milky-white colonies comprising aerobic, Gram-stain-positive, rod-shaped cells. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that the organism belonged to the genus and consistently formed a distinct cluster with JCM 16020 and MSL 26, sharing 95.5 and 94.8 % 16S rRNA gene sequence similarities, respectively. The genomic DNA G+C content was 69.9 mol%. Chemotaxonomically, the isolate contained -diaminopimelic acid in the cell-wall peptidoglycan, MK-8 (H) as the predominant menaquinone, and diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol as the polar lipids found in the cell wall. The major fatty acids were 18 : 1 ω9 (38.6 %), 16 : 0 iso (20.3 %), 15 : 0 iso (6.8 %) and 18 : 0 (5.8 %). Based on its physiological, biochemical and chemotaxonomic characteristics, the strain represents a novel species of the genus , for which the name sp. nov. (type strain X17=CGMCC 4.7318=NBRC 112321) is proposed.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): lake sediment , Nocardioides , polyphasic taxonomy and taxonomic position
© 2017 IUMS
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2017-09-01
2024-04-19
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Nocardioides taihuensis sp. nov., isolated from fresh water lake sediment
Int J Syst Evol Microbiol 67, 3535 (2017); https://doi.org/10.1099/ijsem.0.002163
/content/journal/ijsem/10.1099/ijsem.0.002163
/content/journal/ijsem/10.1099/ijsem.0.002163
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