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A buff-yellow-pigmented bacterium, strain K22-20(T), which was isolated from a cold desert of the Indian Himalayas, was subjected to a polyphasic taxonomic study. Phenotypic and chemical properties of strain K22-20(T) were consistent with its classification in the genus Ornithinimicrobium. The major fatty acids of the strain were iso-C(17 : 1)omega9c (cis-15-methyl 7-hexadecenoic acid), iso-C(15 : 0) (13-methyl tetradecanoic acid), iso-C(16 : 0) (14-methyl pentadecanoic acid) and iso-C(17 : 0) (15-methyl hexadecanoic acid). The G+C content of the genomic DNA was 71 mol%. According to 16S rRNA gene sequence analysis, strain K22-20(T) was closely related to Ornithinimicrobium humiphilum HKI 0124(T) (97.7 %). However, genomic relatedness between strain K22-20(T) and O. humiphilum MTCC 6406(T), as revealed by DNA-DNA hybridization, was 64.5 %. Based on the polyphasic data, strain K22-20(T) (=MTCC 6545(T)=DSM 17687(T)=JCM 12763(T)) represents a novel species of the genus Ornithinimicrobium, for which the name Ornithinimicrobium kibberense sp. nov. is proposed.
Mayilraj et al. (2006) studied this question.