RT Journal Article SR Electronic(1) A1 Salinas, Monica Bonilla A1 Fardeau, Marie-Laure A1 Cayol, Jean-Luc A1 Casalot, Laurence A1 Patel, Bharat K. C. A1 Thomas, Pierre A1 Garcia, Jean-Louis A1 Ollivier, BernardYR 2004 T1 Petrobacter succinatimandens gen. nov., sp. nov., a moderately thermophilic, nitrate-reducing bacterium isolated from an Australian oil well JF International Journal of Systematic and Evolutionary Microbiology, VO 54 IS 3 SP 645 OP 649 DO https://doi.org/10.1099/ijs.0.02732-0 PB Microbiology Society, SN 1466-5034, AB A novel Gram-negative, aerobic and moderately thermophilic bacterium, strain 4BONT, was isolated from a non-water-flooded Australian terrestrial oil reservoir. Cells were non-spore-forming straight rods, which were motile by means of a polar flagellum. The optimum growth conditions were 55 °C, pH 6·9 and 0·5 % NaCl. Strain 4BONT was oxidase- and catalase-positive; it grew on fumarate, pyruvate, succinate, formate, ethanol and yeast extract in the presence of oxygen or nitrate as terminal electron acceptor. Nitrate was reduced to nitrous oxide. The DNA G+C content of the strain was 58·6 mol%. The closest phylogenetic relative of strain 4BONT was Hydrogenophilus thermoluteolus (similarity of 91·8 %), of the β-Proteobacteria. As strain 4BONT is physiologically and phylogenetically different from H. thermoluteolus, it is proposed that it be assigned to a novel species of a novel genus, Petrobacter succinatimandens gen. nov., sp. nov. The type strain is 4BONT (=DSM 15512T=CIP 107790T)., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.02732-0