Description of Demequina pilifera sp. nov. and Demequina ureilytica sp. nov. isolated from a mixture of oil production fluids in Shengli Oilfield.
Two novel strains, designated SO4-18T and SO4-13T, were isolated from a mixture of oil production fluid sourced from Shengli Oilfield in China. Cells of the isolates were Gram-stain-positive, facultatively anaerobic, non-motile and piliated. Growth occurred at 4-37 °C (optimum 30 °C), pH 6.0-9.0 (optimum pH 8.0) and up...