Physiological characteristics and primary identification of a methane-fed bacterium from a natural gasfield in China

A methane-fed bacterium was enriched, isolated and purified from soil of Dagang gasfield, Tianjin, China. It was a Gram-negative coccus. The biochemical characteristics and morphology of the strain were investigated. The total DNA was extracted, and its 16S rDNA was amplified. The GenBank accession number was JN616389. The bacterium has the highest similarity to Pseudoxanthomonas mexicana with almost 100%. The strain showed a good property of methane utilization when methane was added as a sole carbon source.