1. Indigenous microbial communities along the NW Portuguese Coast: Potential for hydrocarbons degradation and relation with sediment contamination
- Author
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Ana P. Mucha, Vanessa Gouveia, Tânia Almeida, Catarina Teixeira, C. Marisa R. Almeida, and CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental
- Subjects
phenanthrene ,Beaches ,trichloroethylene ,Oceanography ,Bioremediation potentials ,01 natural sciences ,acenaphthene ,Feces ,hydrocarbon ,acenaphthylene ,genetics ,Coastal beaches ,sea pollution ,polycyclic aromatic hydrocarbon derivative ,degradation ,media_common ,geography.geographical_feature_category ,Community structure ,benzo[a]pyrene ,pyrene ,Microbial consortium ,Pollution ,6. Clean water ,ethylbenzene ,1,4 dichlorobenzene ,1,2 dichloroethane ,Environmental chemistry ,chlorobenzene ,community structure ,Estuaries ,hydrocarbon degradation ,metal ,Sediment contamination ,1,1,1 trichloroethane ,media_common.quotation_subject ,030106 microbiology ,Microorganisms ,chemistry ,Article ,water pollutant ,Gas Chromatography-Mass Spectrometry ,fluoranthene ,12. Responsible consumption ,03 medical and health sciences ,Sediment characteristic ,Bioremediation ,Contamination ,Pollutant ,concentration (parameters) ,microbiology ,Sediment ,Estuary ,1,3 dichlorobenzene ,15. Life on land ,Microbial population biology ,styrene ,carbon tetrachloride ,coastal zone ,0301 basic medicine ,Geologic Sediments ,analysis ,river ,010501 environmental sciences ,biodegradation ,meta xylene ,benzene ,microbial consortium ,Douro Estuary ,tetrachloroethylene ,Spectroscopy, Fourier Transform Infrared ,Water treatment ,infrared spectroscopy ,benzo[b]fluoranthene ,chloroform ,naphthalene ,mass fragmentography ,ortho xylene ,Biodegradation, Environmental ,Metals ,microbial community ,Biotechnology ,para xylene ,Microbial Consortia ,Microbial communities ,Aquatic Science ,estuary ,Sediments ,fluorene ,Rivers ,toluene ,controlled study ,14. Life underwater ,estuarine ecosystem ,1,2 dichlorobenzene ,0105 earth and related environmental sciences ,geography ,nonhuman ,Portugal ,sediment pollution ,anthracene ,coastal sediment ,Hydrocarbons ,1,1,2 trichloroethane ,sediment ,13. Climate action ,Microbial community structures ,physiology ,Porto [Portugal] ,Autochthonous microorganisms ,Minho Estuary ,metabolism ,Water Pollutants, Chemical - Abstract
Hydrocarbon degradation (HD) potential by autochthonous microorganisms in the coastal sediments of the NW area of Portugal (coastal sandy beaches and estuaries of the rivers Minho and Douro) was evaluated, investigating if water and sediment contamination/characteristics influence it. Sediments were characterized for microbial abundance (by DAPI), HD microorganisms' abundance (by MPN), microbial community structure (by ARISA), hydrocarbons (by FTIR and SPME-GC-MS), hazardous and noxious substances (SPME-GC-MS) and metals (by AAS). To our knowledge, this is the first time all these pollutants, including the selected HNS, were measured simultaneously in sediments of the selected coastal area. Higher contaminants concentrations were, generally, registered in Douro samples. A clear differentiation of the microbial community structure between beaches and estuaries was observed, as well as, between Douro and Minho river estuaries. BIO-ENV analysis indicated both sediment characteristics (e.g. OM content) and contaminants presence/concentrations (e.g. tetrachloroethylene presence) affected the structure of the microbial community along the studied areas. In all the selected sites, the characterized autochthonous microbial communities showed potential for hydrocarbons degradation, with HD microorganisms being found in all collected sediments. These microorganisms can be a valuable asset to recover contaminated areas, but sediment characteristics and contaminants presence/levels need to be taken into account as they can affect their bioremediation potential and the success of their application as biotechnological tool. © 2018 Elsevier This research was partially supported by the Strategic Funding UID/Multi/04423/2013 through national funds provided by FCT – Foundation for Science and Technology and European Regional Development Fund (ERDF), in the framework of the programme PT2020, by the structured Program of R&D&I INNOVMAR - Innovation and Sustainability in the Management and Exploitation of Marine Resources, reference NORTE-01-0145-FEDER-000035 , namely within the Research Line ECOSERVICES (Assessing the environmental quality, vulnerability and risks for the sustainable management of the NW coast natural resources and ecosystem services in a changing world) within the R&D Institution CIIMAR (Interdisciplinary Centre of Marine and Environmental Research), supported by the Northern Regional Operational Programme ( NORTE2020 ), through the European Regional Development Fund (ERDF) and by the research project SpilLess - First line response to oil spills based on native microorganisms cooperation ( EASME/EMFF/2016/1.2.1.4/010 ) supported by the Executive Agency for Small and Medium-sized Enterprises (EASME) delegated by the European Commission. Appendix A
- Published
- 2018
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