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

Volume 67, Issue 2

sp. nov., isolated from estuary sediment Free

Abstract

A Gram-stain-negative and strictly aerobic bacterium, designated strain SAG6, was isolated from estuary sediment in South Korea. Cells of strain SAG6 were found to be oxidase- and catalase-positive rods with gliding motility. Cell growth was observed at 15–40 °C (optimum 30 °C), at pH 6.5–10.0 (optimum pH 7.0) and in the presence of 0.5–13.0 % (w/v) NaCl (optimum 2.0 %). Ubiquinone-10 was the only detected respiratory quinone and summed feature 8 (comprising Cω7/C ω6), C, Cω7 11-methyl and C were the major fatty acids identified (>5 % of the total fatty acids). The polar lipids of strain SAG6 consisted of phosphatidylcholine, phosphatidylglycerol, diphosphatidylglycerol, an unidentified aminolipid and two unidentified lipids. The G+C content of the genomic DNA was 66.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain SAG6 formed a tight phyletic lineage within the genus . Strain SAG6 was most closely related to B108 with 97.6 % 16S rRNA gene sequence similarity. Based on phenotypic, chemotaxonomic and molecular features, strain SAG6 clearly represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is SAG6 (=KACC 18598=JCM 31541).

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  • Accepted:
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Keyword(s): Alphaproteobacteria , estuary sediment , new taxa , Roseovarius confluentis and taxonomy
© 2017 IUMS
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2017-02-01
2025-03-15
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Roseovarius confluentis sp. nov., isolated from estuary sediment
Int J Syst Evol Microbiol 67, 346 (2017); https://doi.org/10.1099/ijsem.0.001630
/content/journal/ijsem/10.1099/ijsem.0.001630
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