Potential hydrogenotrophic denitrifiers enriched and isolated from aquifer material

The characterization of important hydrogenotrophic denitrifiers is essential to understand lasting or transient denitrification intermediate accumulation faced by nitrate remediation trials. Thus hydrogenotrophic denitrifiers were enriched and isolated from groundwater and sediment of a nitrate polluted oxic aquifer. The isolates belonged to the families Rhodocyclaceae and Burkholderiaceae and their denitrification phenotypes were analyzed alongside the essential genes of hydrogenotrophic denitrification.