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Abstract

An orange-pigmented, Gram-negative, non-motile, rod-shaped, strictly aerobic bacterium (UST030701-324) was isolated from a microbial mat in an estuary in the Bahamas. The DNA G+C content was 33·6 mol%. Predominant fatty acids were i15 : 0, i16 : 0, i17 : 0 3-OH, and summed feature 3, comprising i15 : 0 2-OH and/or 16 : 17. MK-6 was the only respiratory quinone. Flexirubin-type pigments were not produced. Phylogenetic analysis based on 16S rRNA gene sequences placed UST030701-324 in a distinct lineage in the family with less than 90·7 % sequence similarity to the members of the nearest genus, . UST030701-324 can be distinguished from other members of by a number of chemotaxonomic and phenotypic characteristics. It is thus proposed that UST030701-324 represents a novel taxon designated gen. nov., sp. nov. The type strain is UST030701-324 (=NRRL B-41136=JCM 12886).

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2005-11-01
2019-10-22
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Cells of strain UST030701-324 visualized using a scanning electron microscope. Bar, 1 µm.

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