| Text | 416624 2019 10.3390/microorganisms7120632 Scopus 2 s2.0 85075915176 ISI Web of Science WOS WOS 000506646400050 arctic antarctic sediment microcosms hydrocarbons biodegradation bioremediation Effects of a simulated acute oil spillage on bacterial communities from arctic and antarctic marine sediments Rizzo C.; Malavenda R.; Gerce B.; Papale M.; Syldatk C.; Hausmann R.; Bruni V.; Michaud L.; Giudice A.L.; Amalfitano S. Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, 98166, Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166, Messina, Italy;, , Italy; Institute of Process Engineering in Life Sciences, Section II Technical Biology, Karlsruhe Institute of Technology KIT , Karlsruhe, 76131, Institute of Process Engineering in Life Sciences, Section II Technical Biology, Karlsruhe Institute of Technology KIT , 76131, Karlsruhe, Germany;, , Germany; Institute of Polar Sciences, National Research Council CNR ISP , Messina, 98122, Institute of Polar Sciences, National Research Council CNR ISP , 98122, Messina, Italy, , Italy; Department of Bioprocess Engineering, Institute of Food Science and Biotechnology, University of Hohenheim, Stuttgart, 70599, Department of Bioprocess Engineering, Institute of Food Science and Biotechnology, University of Hohenheim, 70599, Stuttgart, Germany;, , Germany; Water Research Institute, National Research Council CNR IRSA , Rome, 00015, Water Research Institute, National Research Council CNR IRSA , 00015, Rome, Italy, , , Italy; Water Research Institute, National Research Council CNR IRSA , Rome, 00015, Water Research Institute, National Research Council CNR IRSA , 00015, Rome, Italy, , , Italy Background The bacterial community responses to oil spill events are key elements to predict the fate of hydrocarbon pollution in receiving aquatic environments. In polar systems, cold temperatures and low irradiance levels can limit the effectiveness of contamination removal processes. In this study, the effects of a simulated acute oil spillage on bacterial communities from polar sediments were investigated, by assessing the role of hydrocarbon mixture, incubation time and source bacterial community in selecting oil degrading bacterial phylotypes. Methods The bacterial hydrocarbon degradation was evaluated by gas chromatography. Flow cytometric and fingerprinting profiles were used to assess the bacterial community dynamics over the experimental incubation time. Results Direct responses to the simulated oil spill event were found from both Arctic and Antarctic settings, with recurrent bacterial community traits and diversity profiles, especially in crude oil enrichment. Along with the dominance of Pseudomonas spp., members of the well known hydrocarbon degraders Granulosicoccus spp. and Cycloclasticus spp. were retrieved from both sediments. Conclusions Our findings indicated that polar bacterial populations are able to respond to the detrimental effects of simulated hydrocarbon pollution, by developing into a more specialized active oil degrading community. 7 Published version https //www.mdpi.com/2076 2607/7/12/632 30/11/2019 Effects of a Simulated Acute Oil Spillage on Bacterial Communities from Arctic and Antarctic Marine Sediments Versione pubblicata Rizzo_2019_Microorganisms_Oil spill.pdf Articolo in rivista Molecular Diversity Preservation International 2076 2607 Microorganisms Microorganisms stefano.amalfitano AMALFITANO STEFANO angelina.logiudice LO GIUDICE ANGELINA |
