A Gram-stain-negative and orangish yellow-pigmented bacterial
strain, designated PR1014KT, was isolated from an automobile
evaporator core collected in Korea. Phylogenetic
analysis based on 16S rRNA gene sequences indicated that
strain PR1014KT was related with the members of the genus
Spirosoma (94.7–90.2%) and closely related with Spirosoma
lacussanchae CPCC 100624T (94.7%), Spirosoma knui 15J8-
12T (94.3%), and Spirosoma soli MIMBbqt12T (93.3%). The
strain grew at 15–40°C (optimum, 25°C), pH 6.5–7.0 (optimum,
6.5) and 0–1% (w/v) NaCl (optimum, 0%). The predominant
fatty acids were summed feature 3 (C16:1 ω7c and/or
C16:1 ω6c), C16:0, iso-C15:0, C16:1 ω5c, and iso-C17:0 3-OH. The
major menaquinone was MK-7. The polar lipid profile of the
strain indicated that the presence of one phosphatidylethanolamine,
one unidentified aminolipid, two unidentified
aminophospholipids, and three unidentified lipids. The DNA
G+C content of the strain was 47.4 mol%. On the basis of
the phenotypic, genotypic and chemotaxonomic characteristics,
strain PR1014KT represents a novel species in the genus
Spirosoma, for which the name Spirosoma metallicus
sp. nov. (=KACC 17940T =NBRC 110792T) is proposed.
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