Journal
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Volume 58, Issue -, Pages 1198-1202Publisher
SOC GENERAL MICROBIOLOGY
DOI: 10.1099/ijs.0.65657-0
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A Gram-negative, motile, ovoid to rod-shaped bacterial strain, designated strain SMK-122(T), was isolated from a Yellow Sea tidal flat located on the coast of Korea. Strain SMK-122(T) grew optimally at pH 7.0-8.0 and 30 degrees C. It contained Q-10 as the predominant ubiquinone and possessed C(18:1)omega 7c and C(16:0) as the major fatty acids. The DNA G + C content was 58.6 mol%. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain SMK-122(T) fell within the genus Roseovarius, being closest to Roseovarius nubinhibens ISM(T); the sequence similarities with respect to Roseovarius species ranged from 94.9 to 9 7.3%. The mean value for DNA-DNA relatedness between strain SMK-122(T) and Rva. nubinhibens DSM 15170(T) was 13%. Differential phenotypic properties of SMK-122(T), together with its phylogenetic and genetic distinctiveness, revealed that this strain is distinct from recognized Roseovarius species. On this basis, strain SMK-122(T) represents a novel species of the genus Roseovarius, for which the name Roseovarius aestuarii sp. nov. is proposed. The type strain is SMK-122(T) (=KCTC 22174(T) =CCUG 55325(T)).
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