1887

Abstract

A Gram-stain-negative, aerobic, non-motile, rod-shaped, agarolytic and carrageenolytic bacterial strain, designated UJ94, was isolated from seawater of Uljin in the Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain UJ94 shared sequence similarities of 98.4, 96.1 and 95.4 % with Tamlana agarivorans JW-26, Tamlana sedimentorum KMM 9545 and Tamlana crocina HST1-43, respectively. Growth of strain UJ94 was observed at 4–37 °C and pH 6.5–8.0 in the presence of 2–9 % (w/v) NaCl. The major fatty acids of strain UJ94 were iso-C15 : 0, summed feature 3 (C16 : 1 ω7c/C16 : 1 ω6c) and iso-C17 : 0 3-OH; MK-6 was the predominant menaquinone. Phosphatidylethanolamine, two unidentified aminolipids and five unidentified lipids were detected as major polar lipids. The whole circular genome comprised 4 116 543 bp and had a G+C content of 35.2 mol%. The ranges of average nucleotide identity and in silico DNA–DNA hybridization estimated by genome-to-genome distance were 90.6–74.2 % and 47.6–14.6 %, respectively, with the type strains of T. agarivorans and T. sedimentorum . The present polyphasic study, including phylogenetic, chemotaxonomic, biochemical and genomic data, suggested that strain UJ94 represents a novel species of the genus Tamlana , for which the name Tamlana carrageenivorans sp. nov. is proposed. The type strain is UJ94 (=KCTC 62451=NBRC 113234).

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2019-02-26
2019-12-15
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