A novel psychrophilic, Gram-positive, yellow-pigmented and aerobic bacterium, strain 0543, was isolated from the China No. 1 glacier. Strain 0543 was able to grow at 4–23 °C, with optimum growth at 18–19 °C. The major fatty acids were anteiso-C (58.36 %), iso-C (21.13 %), iso-C (10.25 %) and anteiso-C (7.16 %). The genomic DNA G+C content was 63.5 mol% and the major menaquinone was MK-10. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 0543 represented a lineage within the family , with the highest similarity of 97.4 % with KMM 3673. On the basis of polyphasic, chemotaxonomic, physiological and biochemical evidence from this study, the novel species sp. nov. is proposed; the type strain is 0543(=CGMCC 1.5381 =JCM 13926).


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Transmission electron photomicrographs (Hitachi H-600) of cells of strain 0543 grown on PYG medium.


Comparison of the cellular fatty acid compositions of strain 0543 and its phylogenetic relatives. [PDF](26 KB)


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