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Published on: August 9, 2019
Aestuariivivens insulae gen. nov., sp. nov., isolated from a tidal flat
Sooyeon Park1, Ji-Min Park1, Chul-Hyung Kang1
1Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea.
Abstract:
A Gram-stain-negative, non-motile, aerobic, ovoid or rod-shaped bacterium, designated AH-MY3T, was isolated from a tidal flat on Aphae island of the south-western sea, South Korea, and subjected to a polyphasic taxonomic study. Strain AH-MY3T grew optimally at 35 °C, at pH 7.0-8.0 and in the presence of 2.0-3.0 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences showed that strain AH-MY3T joined the cluster comprising the type strains of Yeosuana aromativorans, Snuella lapsa and Meridianimaribacter flavus, showing sequence similarities of 93.9, 93.7 and 92.6 %, respectively. Strain AH-MY3T exhibited 16S rRNA gene sequence similarity values of 94.0-94.7 % to the type strains of 'Aestuariibaculum scopimerae', Winogradskyella aquimaris, Winogradskyella poriferorum and Gaetbulibacter aestuarii. Strain AH-MY3T contained MK-6 as the predominant menaquinone. The fatty acid and polar lipid profiles of strain AH-MY3T could be distinguished from those of the type strains of phylogenetically related taxa. The DNA G+C content of strain AH-MY3T was 37 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain AH-MY3T represents a novel genus and species within the family Flavobacteriaceae, for which the name Aestuariivivens insulae gen. nov., sp. nov. is proposed. The type strain of Aestuariivivens insulae is AH-MY3T ( = KCTC 42350T = NBRC 110723T).
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