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Arch Microbiol. 2018 Jan;200(1):91-96. doi: 10.1007/s00203-017-1424-8. Epub 2017 Aug 10.

Spirosoma metallum sp. nov., isolated from an automobile air conditioning system.

Author information

1
Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea.
2
Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.
3
Research and Development Division, Hyundai Motor Group, Uiwang, Republic of Korea.
4
Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea. joka@snu.ac.kr.

Abstract

A Gram-stain-negative and yellow-pigmented bacterial strain, designated TX0653T, was isolated from an automobile evaporator core collected in Korea. The cells were aerobic and rod-shaped. The strain grew at 10-28 °C (optimum, 25 °C), at pH 6.0-7.5 (optimum, 6.5), and in the presence of 0-1% (w/v) NaCl (optimum, 0%). Phylogenetically, the strain was related to members of the genus Spirosoma (95.1-90.8% 16S rRNA sequence similarity) and distantly related to Spirosoma pulveris JSH5-14T (95.1%), Spirosoma fluviale MSd3T (95.0%), Spirosoma endophyticum DSM 26130T (94.8%), and Spirosoma linguale DSM 74T (94.6%). The major fatty acids of the strain were summed feature 3 (C16:1 ω6c and/or C16:1 ω7c), C16:1 ω5c, iso-C15:0, iso-C17:0 3-OH, and C16:0. MK-7 was identified as the predominant menaquinone. The polar lipids profile indicated the presence of one phosphatidylethanolamine, one unidentified aminolipid, one unidentified aminophospholipid, two unidentified phospholipids, and three unidentified lipids. On the basis of the phenotypic, genotypic, and chemotaxonomic characteristics, strain TX0653T represents a novel species in the genus Spirosoma, for which the name Spirosoma metallum sp. nov. (= KACC 19278T = NBRC 112495T) is proposed.

KEYWORDS:

Automobile air conditioning system; Novel species; Polyphasic taxonomy; Spirosoma metallum

PMID:
28799031
DOI:
10.1007/s00203-017-1424-8
[Indexed for MEDLINE]

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