Hackbusch, SteffenSteffenHackbuschNoirungsee, NuttapolNuttapolNoirungseeViamonte Dominguez, JuanJuanViamonte DominguezSun, XiaoxuXiaoxuSunBubenheim, PaulPaulBubenheimKostka, Joel E.Joel E.KostkaMüller, RudolfRudolfMüllerLiese, AndreasAndreasLiese2020-01-032020-01-032020-01Marine Pollution Bulletin (150): 110683 (2020-01)http://hdl.handle.net/11420/4271A new Rhodococcus strain, capable of degrading crude oil, was isolated from the Gulf of Mexico deep-sea sediment and was investigated for its biodegradation characteristics under atmospheric as well as under deep-sea pressure (1500 m = 15 MPa). Additionally, the effect of dispersant (Corexit EC9500A) addition was studied. Rhodococcus sp. PC20 was shown to degrade 60.5 ± 10.7% of the saturated and aromatic fraction of crude oil at atmospheric pressure and 74.2 ± 9.1% at deep-sea level pressure within 96 h. Degradation rates, especially for monoaromatic hydrocarbons, were significantly higher at elevated pressure compared to atmospheric pressure. This study found a growth inhibiting effect at a dispersant to oil ratio of 1:100 and higher. This effect of the dispersant was enhanced when elevated pressure was applied.en0025-326X2020BiodegradationCrude oilDeep-seaGulf of MexicoRhodococcusAllgemeines, WissenschaftJournal Article10.1016/j.marpolbul.2019.110683Other