Stable isotope probing of hypoxic toluene degradation at the Siklos aquifer reveals prominent role of Rhodocyclaceae.

ABSTRACT: The availability of oxygen is often a limiting factor for the degradation of aromatic hydrocarbons in subsurface environments. However, while both aerobic and anaerobic degraders have been intensively studied, degradation betwixt, under micro- or hypoxic conditions has rarely been addressed. It is speculated that in environments with limited, but sustained oxygen supply, such as in the vicinity of groundwater monitoring wells, hypoxic degradation may take place. A large diversity of subfamily I.2.C extradiol dioxygenase genes has been previously detected in a BTEX-contaminated aquifer in Hungary. Older literature suggests that such catabolic potentials could be associated to hypoxic degradation. Bacterial communities dominated by members of the Rhodocyclaceae were found, but the majority o

SUBMITTER: Tancsics A 

PROVIDER: S-EPMC5972620 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature