Altererythrobacter ishigakiensis sp. nov., an astaxanthin-producing bacterium isolated from a marine sediment
2011
Matsumoto, Mitsufumi | Iwama, Daisuke | Arakaki, Atsushi | Tanaka, Akira | Tanaka, Tsuyoshi | Miyashita, Hideaki | Matsunaga, Tadashi
A Gram-negative, non-motile, non-spore-forming, halophilic rod, designated JPCCMB0017T, was isolated from a marine sediment of the coastal area of Okinawa, Japan. The isolate formed orange–red colonies on marine agar. Bacteriochlorophyll α was absent and sphingoglycolipid 1 and other carotenoids, including astaxanthin, adonixanthin and zeaxanthin, were present. Ubiquinone-10 (Q-10) was the main respiratory quinone and C18 : 1ω7c was the major cellular fatty acid. The G+C content of DNA was 59.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequencing revealed that the isolate was a member of the genus Altererythrobacter in the family ERYTHROBACTERACEAE: Strain JPCCMB0017T exhibited 96.8 % 16S rRNA gene sequence similarity with Altererythrobacter marinus H32T. Unlike other members of the genus Altererythrobacter, strain JPCCMB0017T reduced nitrate. On the basis of genotypic and phenotypic data, a novel species is proposed to accommodate this isolate, with the name Altererythrobacter ishigakiensis sp. nov. The type strain is JPCCMB0017T ( = NITE-AP48T = ATCC BAA-2084T = NBRC 107699T).
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