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

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Title
Leeuwenhoekiella polynyae sp. nov., isolated from a polynya in western Antarctica
Authors
Si, Ok-Ja
Rhee, Sung-Keun
Lee, Sang H.
Roh, Seong Woon
Kim, Song-Gun
Kim, Jong-Geol
Choi, Seon-Bin
Jung, Man-Young
Kim, So-Jeong
Subject
Microbiology
Issue Date
2015
Citation
Si, Ok-Ja, et al. 2015. "Leeuwenhoekiella polynyae sp. nov., isolated from a polynya in western Antarctica". INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 65(5): 1694-1699.
Abstract
A Gram-stain-negative, motile by gliding, rod-shaped bacterial strain, designated SOJ2014-1T was isolated from surface water of a polynya in the Antarctic Ocean. A comparative 16S rRNA gene sequence analysis showed that strain SOJ2014-1T belongs to the genus Leeuwenhoekiella and is most closely related to Leeuwenhoekiella marinoflava DSM 3653T (97.5% 16S rRNA gene sequence similarity). The G+C content of the genomic DNA of strain SOJ2014-1T was 38.8 mol%. Its predominant cellular fatty acids were summed feature 3 (composed of C16 : 1v6c and/or C16 : 1v7c), iso-C17 : 0 3-OH, iso-C15 : 0, iso-C15 : 1 G and summed feature 9 (composed of iso-C17 : 1v9c and/or 10-methyl C16 : 0). DNA?DNA relatedness between strain SOJ2014-1T and close relatives, L. marinoflava DSM 3653T and Leeuwenhoekiella aequorea LMG 22550T, 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 6C (optimum, 25 6C) 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 3653T. Based on the phenotypic, chemotaxonomic and phylogenetic analyses, strain SOJ2014-1T is proposed as a representative of a novel species, Leeuwenhoekiella polynyae. The type strain is SOJ2014-1T (5KCTC 42185T5JCM 30387T).
URI
http://repository.kopri.re.kr/handle/201206/6377
DOI
http://dx.doi.org/10.1099/ijs.0.000160
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