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Impact of oil spills on coral reefs can be reduced by bioremediation using probiotic microbiota
Fragoso ados Santos, H.; Duarte, G.A.S.; Coelho da Costa Rachid, C.T.; Chaloub, R.M.; Calderon, E.M.; Fernandes de Barros Marangoni, L.; Bianchini, A.; Nudi, A.H.; do Carmo, F.L.; Van Elsas, J.D.; Rosado, A.S.; Barreira e Castro, C.; Peixoto, R.S. (2015). Impact of oil spills on coral reefs can be reduced by bioremediation using probiotic microbiota. NPG Scientific Reports 5(18268): 11. http://dx.doi.org/10.1038/srep18268
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322
Peer reviewed article  
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  • Fragoso ados Santos, H.
  • Duarte, G.A.S.
  • Coelho da Costa Rachid, C.T.
  • Chaloub, R.M.
  • Calderon, E.M.
  • Fernandes de Barros Marangoni, L.
  • Bianchini, A.
  • Nudi, A.H.
  • do Carmo, F.L.
  • Van Elsas, J.D.
  • Rosado, A.S.
  • Barreira e Castro, C.
  • Peixoto, R.S.
Abstract
    Several anthropogenic factors, including contamination by oil spills, constitute a threat to coral reef health. Current methodologies to remediate polluted marine environments are based on the use of chemical dispersants; however, these can be toxic to the coral holobiont. In this study, a probiotic bacterial consortium was produced from the coral Mussismilia harttii and was trained to degrade water-soluble oil fractions (WSFs). Additionally, we assessed the effect of WSFs on the health of M. harttii in tanks and evaluated the bacterial consortium as a bioremediation agent. The consortium was responsible for the highly efficient degradation of petroleum hydrocarbons, and it minimised the effects of WSFs on coral health, as indicated by raised photosynthetic efficiencies. Moreover, the impact of WSFs on the coral microbiome was diminished by the introduced bacterial consortium. Following introduction, the bacterial consortium thus had a dual function, i.e promoting oil WSF degradation and improving coral health with its probiotic features.<
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