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Volume 69, Issue 8

sp. nov., isolated from gasoline-contaminated soil Free

Abstract

A Gram-stain-negative, strictly aerobic bacterial strain, designated EO9, was isolated from gasoline-contaminated soil in the Republic of Korea. Cells were non-motile short rods showing catalase- and oxidase-positive reactions. Growth was observed at 10–37 °C (optimum, 30 °C), at pH 6.0–9.0 (pH 6.5) and in the presence of 0–0.5 % (w/v) NaCl (0 %). Ubiquinone-10 (Q-10) and spermidine were identified as the predominant respiratory quinone and polyamine, respectively. Summed feature 8 (comprising Cω7/Cω6), summed feature 3 (comprising Cω7/Cω6), C and C 2-OH were identified as major cellular fatty acids. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, sphingoglycolipid, phosphatidylglycerol and an unidentified phospholipid. The G+C content of the genomic DNA was 62.8 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain EO9 formed a tight phylogenetic lineage with NBRC 107872 and C1 within the genus . Strain EO9 was most closely related to NBRC 107872 (97.2 %) and C1 (97.2 %), but DNA–DNA relatedness levels between strain EO9 and the type strains of and were 37.1 and 36.8 % , respectively. Based on its phenotypic, chemotaxonomic and molecular features, strain EO9 clearly represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is EO9 (=KACC 19523=JCM 32762).

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Keyword(s): Alphaproteobacteria , new taxa , soil and Sphingobium terrigena
© 2019 The Authors
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2019-08-01
2024-04-25
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Sphingobium terrigena sp. nov., isolated from gasoline-contaminated soil
Int J Syst Evol Microbiol 69, 2459 (2019); https://doi.org/10.1099/ijsem.0.003514
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