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Zooshikella ganghwensis gen. nov., sp. nov., isolated from tidal flat sediments

Cited 51 time in Web of Science Cited 55 time in Scopus

Yi, Hana; Chang, Young-Hyo; Oh, Hyun Woo; Bae, Kyung Sook; Chun, Jong Sik

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Society for General Microbiology
International Journal of Systematic and Evolutionary Microbiology, Vol.53 No.4, pp.1013-1018
Two red pigment-producing bacterial strains with a metallic green sheen were isolated from a sediment sample of getbol, the Korean tidal flat. Phylogenetic analysis based on 16S rDNA sequences showed that these isolates represent a phyletic lineage within the gamma-Proteobacteria that is distantly related to the genus Hahella. No bacterial species with validly published names showed greater than or equal to 92% 16S rRNA similarity with the getbol isolates. The strains were Gram-negative, chemo-organotrophic, aerobic and required NaCl (1-7%) for growth. They produced pigments with maximum absorption at 540 nm, which indicated the presence of prodigiosin, a well-known red pigment previously detected in Serratia marcescens. The major isoprenoid quinone was ubiquinone-9. The predominant cellular fatty acids were saturated and monounsaturated straight-chain fatty acids. The DNA G+C contents ranged from 40 to 42 mol%. The combination of physiological, biochemical and chemotaxonomic data clearly separated the test strains from other phylogenetically related genera in the gamma-Proteobacteria. On the basis of polyphasic evidence from this study, it is proposed that the two getbol isolates should be classified in a novel genus, Zooshikella gen. nov., as Zooshikella ganghwensis sp. nov.
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