1887

Abstract

A Gram-negative, motile, rod-shaped, non-sporulating, aerobic bacterial strain (Esp-1) was isolated from oil-contaminated soil of Panipat Oil Refinery, India, and its taxonomic position was determined using a polyphasic approach. Strain Esp-1 grew in the presence of 2 % NaCl at 30 °C and was characterized chemotaxonomically by having C as the major fatty acid followed by C cyclo and C 7. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain Esp-1 formed a cluster together with DSM 6978 (98.9 % sequence similarity), MTCC 7601 (98.5 %), DSM 14399 (98.5 %), DSM 50332 (98.7 %), ATCC 700690 (98.9 %) and DSM 16612 (97.8 %). DNA–DNA hybridization values of strain Esp-1 with DSM 6978, MTCC 7601, DSM 16612, DSM 50332, ATCC 700690 and DSM 14399 were 32.9, 30.2, 20.6, 23.4, 23.4 and 20.0 %, respectively. Low levels of DNA–DNA hybridization and phenotypic and chemotaxonomic results are sufficient to delineate strain Esp-1 from other closely related species of . Phenotypic and chemotaxonomic data confirm that strain Esp-1 represents a novel species, for which the name sp. nov. is proposed. The type strain of sp. nov. is Esp-1 (=MTCC 8990=CCM 7469).

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2008-06-01
2019-10-18
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vol. , part 6, pp. 1339 - 1345

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