Abstract
A Gram-stain-negative, non-motile, non-spore-forming, rodshaped,
aerobic bacterium, designated 15J9-8T, was isolated
from soil on Jeju Island, Republic of Korea. The isolate was
able to grow between 10 and 30°C, pH 6.5–8.5, and in presence
of 0–1% (w/v) NaCl. The results of comparative 16S
rRNA gene sequence analysis indicated that strain 15J9-8T
represented a member of the family Cytophagaceae, phylum
Bacteroidetes, and was most closely related to Spirosoma
aerophilum 5516J-17T (96.1% similarity), Spirosoma pulveris
JSH5-14T (95.6%), and Spirosoma linguale DSM 74T (95.2%).
The G + C content of the genomic DNA of the isolate was
47.0 mol%. Strain 15J9-8T contained summed feature 3 (C16:1
ω7c/C16:1 ω6c), C16:1 ω5c, and iso-C15:0 as the major fatty acids,
phosphatidylethanolamine and an unidentified aminophospholipid
as the main polar lipids, and menaquinone MK-7
as the predominant respiratory quinone. On the basis of its
phenotypic and genotypic properties, and phylogenetic distinctiveness,
strain 15J9-8T should be classified as a representative
of a novel species of the genus Spirosoma, for which the
name Spirosoma migulaei sp. nov. is proposed. The type strain
is 15J9-8T (=KCTC 52028T =JCM 31996T).
Citations
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