Bacterial Community Legacy Effects Following the Agia Zoni II Oil-Spill, Greece.

Autor:	Thomas GE; School of Life Sciences, University of Essex, Colchester, United Kingdom., Cameron TC; School of Life Sciences, University of Essex, Colchester, United Kingdom., Campo P; School of Water, Energy and Environment, Cranfield University, Cranfield, United Kingdom., Clark DR; School of Life Sciences, University of Essex, Colchester, United Kingdom.; Institute for Analytics and Data Science, University of Essex, Wivenhoe Park, Essex, United Kingdom., Coulon F; School of Water, Energy and Environment, Cranfield University, Cranfield, United Kingdom., Gregson BH; School of Life Sciences, University of Essex, Colchester, United Kingdom., Hepburn LJ; School of Life Sciences, University of Essex, Colchester, United Kingdom., McGenity TJ; School of Life Sciences, University of Essex, Colchester, United Kingdom., Miliou A; Archipelagos Institute of Marine Conservation, Samos, Greece., Whitby C; School of Life Sciences, University of Essex, Colchester, United Kingdom., McKew BA; School of Life Sciences, University of Essex, Colchester, United Kingdom.
Jazyk:	angličtina
Zdroj:	Frontiers in microbiology [Front Microbiol] 2020 Jul 17; Vol. 11, pp. 1706. Date of Electronic Publication: 2020 Jul 17 (Print Publication: 2020).
DOI:	10.3389/fmicb.2020.01706
Abstrakt:	In September 2017 the Agia Zoni II sank in the Saronic Gulf, Greece, releasing approximately 500 tonnes of heavy fuel oil, contaminating the Salamina and Athens coastlines. Effects of the spill, and remediation efforts, on sediment microbial communities were quantified over the following 7 months. Five days post-spill, the concentration of measured hydrocarbons within surface sediments of contaminated beaches was 1,093-3,773 μg g -1 dry sediment (91% alkanes and 9% polycyclic aromatic hydrocarbons), but measured hydrocarbons decreased rapidly after extensive clean-up operations. Bacterial genera known to contain oil-degrading species increased in abundance, including Alcanivorax , Cycloclasticus , Oleibacter , Oleiphilus , and Thalassolituus , and the species Marinobacter hydrocarbonoclasticus from approximately 0.02 to >32% (collectively) of the total bacterial community. Abundance of genera with known hydrocarbon-degraders then decreased 1 month after clean-up. However, a legacy effect was observed within the bacterial community, whereby Alcanivorax and Cycloclasticus persisted for several months after the oil spill in formerly contaminated sites. This study is the first to evaluate the effect of the Agia Zoni II oil-spill on microbial communities in an oligotrophic sea, where in situ oil-spill studies are rare. The results aid the advancement of post-spill monitoring models, which can predict the capability of environments to naturally attenuate oil. (Copyright © 2020 Thomas, Cameron, Campo, Clark, Coulon, Gregson, Hepburn, McGenity, Miliou, Whitby and McKew.)
Databáze:	MEDLINE
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