Leeuwenhoekiella polynyae sp. nov., isolated from a polynya in western Antarctica

International Journal of Systematic and Evolutionary Microbiology
Ok-Ja SiSung-Keun Rhee

Abstract

A Gram-stain-negative, motile by gliding, rod-shaped bacterial strain, designated SOJ2014-1(T) was isolated from surface water of a polynya in the Antarctic Ocean. A comparative 16S rRNA gene sequence analysis showed that strain SOJ2014-1(T) belongs to the genus Leeuwenhoekiella and is most closely related to Leeuwenhoekiella marinoflava DSM 3653(T) (97.5% 16S rRNA gene sequence similarity). The G+C content of the genomic DNA of strain SOJ2014-1(T) was 38.8 mol%. Its predominant cellular fatty acids were summed feature 3 (composed of C16 : 1ω6c and/or C16 : 1ω7c), iso-C17 : 0 3-OH, iso-C15 : 0, iso-C15 : 1 G and summed feature 9 (composed of iso-C17 : 1ω9c and/or 10-methyl C16 : 0). DNA-DNA relatedness between strain SOJ2014-1(T) and close relatives, L. marinoflava DSM 3653(T) and Leeuwenhoekiella aequorea LMG 22550(T), was below 49%. The respiratory quinone was MK-6. The major polar lipids were phosphatidylethanolamine, an unidentified aminolipid and two unidentified lipids. The strain grew at 0-35 °C (optimum, 25 °C) with 0-14.0% (w/v) NaCl (optimum, 1.0-5.0%). It was strictly aerobic and had different carbohydrate utilization traits compared with L. marinoflava DSM 3653(T). Based on the phenotypic, chemotaxonomic and phyloge...Continue Reading

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Citations

Jan 10, 2016·International Journal of Systematic and Evolutionary Microbiology·Qianfeng LiuJiasong Fang
Jan 8, 2020·International Journal of Systematic and Evolutionary Microbiology·Guillaume TahonAnne Willems
Feb 18, 2020·International Journal of Systematic and Evolutionary Microbiology·Lei WangZongze Shao

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