Quick stimulation of Alcanivorax sp. by bioemulsificant EPS2003 on microcosm oil spill simulation

Brazilian Journal of Microbiology

Simone Cappello²  Maria Genovese²  Renata Denaro²  Santina Santisi²  Anna Volta²  Martina Bonsignore²  Giuseppe Mancini¹  Laura Giuliano²  Lucrezia Genovese²  Michail M. Yakimov² 

[1] ,Istituto per l'Ambiente Marino Costiero,Italy

关键词: Alcanivorax;    bioemulsificant exopolysaccharide (EPS2003);    oil spill;   

DOI  :  10.1590/S1517-83822014000400023

来源: SciELO

【 摘 要 】

Oil spill microcosms experiments were carried out to evaluate the effect of bioemulsificant exopolysaccharide (EPS2003) on quick stimulation of hydrocarbonoclastic bacteria. Early hours of oil spill, were stimulated using an experimental seawater microcosm, supplemented with crude oil and EPS2003 (SW+OIL+EPS2003); this system was monitored for 2 days and compared to control microcosm (only oil-polluted seawater, SW+OIL). Determination of bacterial abundance, heterotrophic cultivable and hydrocarbon-degrading bacteria were carried out. Community composition of marine bacterioplankton was determined by 16S rRNA gene clone libraries. Data obtained indicated that bioemulsificant addition stimulated an increase of total bacterial abundance and, in particular, selection of bacteria related to Alcanivorax genus; confirming that EPS2003 could be used for the dispersion of oil slicks and could stimulate the selection of marine hydrocarbon degraders thus increasing bioremediation process.

【 授权许可】

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