1887

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Volume 68, Issue 9

Solimonas fluminis sp. nov., isolated from a freshwater river Free

Abstract

A strictly aerobic, catalase-negative and oxidase-positive bacterium (HR-BB), isolated from a water sample of the Han River, was taxonomically studied using a polyphasic approach. Cells were Gram-stain-negative motile rods with a polar flagellum. The strain grew at 20–35 °C and pH 7–8 and in the absence of NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain HR-BB belonged to the family Nevskiaceae in the phylum Proteobacteria and formed a phylogenic lineage with members of the genus Solimonas . A comparison of the 16S rRNA gene sequences of strain HR-BB and the type strains of closely related species of the genus Solimonas showed that it shared highest sequence similarity with Solimonas terrae KIS83-12 (94.9 %), Solimonas soli DCY12 (94.8 %), Solimonas variicoloris MN28 (94.4 %) and Solimonas flava CW-KD 4 (94.2 %). The fatty acids of the strain consisted of summed features 8 (comprising C18 : 1 ω6c and/or C18 : 1 ω7c) and 3 (comprising C16 : 1 ω6c and/or C16 : 1 ω7c), C16 : 0 and C12 : 0 as major components. The polar lipids comprised phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, three unidentified phospholipids and an unidentified lipid. Ubiquinone-8 was detected as the sole respiratory quinone. The DNA G+C content of strain HR-BB was 68.5 mol%. Based on the genotypic, chemotaxonomic and phenotypic analyses, strain HR-BB represents a novel species of the genus Solimonas , for which the name Solimonas fluminis sp. nov. is proposed. The type strain is HR-BB (=KACC 19410=JCM 32268).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): freshwater , Gammaproteobacteria , Han River , Solimonas fluminis and taxonomy
© 2018 IUMS
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2018-07-17
2024-04-20
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Solimonas fluminis sp. nov., isolated from a freshwater river
Int J Syst Evol Microbiol 68, 2755 (2018); https://doi.org/10.1099/ijsem.0.002865
/content/journal/ijsem/10.1099/ijsem.0.002865
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