Abstract:
:A gram-negative, non-spore-forming, non-flagellated, motile-by-gliding rod, designated SSK2-3(T), was isolated from the junction between seawater and a freshwater spring at Jeju island, South Korea. Strain SSK2-3(T) grew optimally at 25-30 °C, at pH 7.0-7.5 and in the presence of 2 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain SSK2-3(T) clustered with type strains of species of the genus Mariniflexile, with which it exhibited 97.2-97.8 % 16S rRNA gene sequence similarity. Sequence similarity between the isolate and the other strains used in the phylogenetic analysis was <95.6 %. Strain SSK2-3(T) contained MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C15 : 1 G and C15 : 0 as the major fatty acids. The major polar lipids of strain SSK2-3(T) were phosphatidylethanolamine and one unidentified lipid. The DNA G+C content of strain SSK2-3(T) was 32.4 mol%. DNA-DNA relatedness between the isolate and Mariniflexile gromovii KCTC 12570(T), Mariniflexile fucanivorans DSM 18792(T) and Mariniflexile aquimaris HWR-17(T) was 19, 15 and 20 %, respectively. The differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, revealed that strain SSK2-3(T) is separate from other members of the genus Mariniflexile. On the basis of the data presented, strain SSK2-3(T) is considered to represent a novel species of the genus Mariniflexile, for which the name Mariniflexile jejuense sp. nov. is proposed. The type strain is SSK2-3(T) ( = KCTC 23958(T) = CCUG 62414(T)). An emended description of the genus Mariniflexile is given.
journal_name
Int J Syst Evol Microbiolauthors
Jung YT,Yoon JHdoi
10.1099/ijs.0.042796-0subject
Has Abstractpub_date
2013-04-01 00:00:00pages
1329-1334issue
Pt 4eissn
1466-5026issn
1466-5034journal_volume
63pub_type
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