Abstract
A Gram-stain-positive, rod-shaped, non-motile bacterium, strain PRD07T, was isolated from Godavari river, India during the world's largest spiritual and religious mass bathing event 'Kumbh Mela'. Molecular analysis using 16S rRNA gene sequencing and phylogenetic analysis reveals the distinct phylogenetic positioning of strain PRD07T within the genus Corynebacterium. The strain demonstrated highest sequence similarity to Corynebacterium imitans DSM 44264T (97.9 %), Corynebacterium appendicis DSM 44531T (97.1 %) and <96.7 % with all other members of the genus Corynebacterium. The G+C content of PRD07T was 68.5 mol% (Tm) and the DNA-DNA hybridization depicts 61.09 % genomic relatedness with C. imitans DSM 44264T. Chemotaxonomic assessment of strain PRD07T suggested presence of C16 : 0 (31.6 %), C18 : 0 (3.5 %) and C18 : 1ω9c (58.6 %) as the major cellular fatty acids. The major polar lipids of strain PRD07T were phosphatidylglycerol, diphosphatidylglycerol and glycophospholipid. Differentiating molecular, phylogenetic and chemotaxonomic characteristics of strain PRD07T with its closest relatives necessitated the description of strain PRD07T as a novel species of genus Corynebacterium for which the name Corynebacteriumgodavarianum sp. nov., has been proposed. The type strain is PRD07T (=MCC 3388T=KCTC 39803T=LMG 29598T).
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