English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/9475
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Alcanivorax strain detected among the cultured bacterial community from sediments affected by the 'Prestige' oil spill

AutorAlonso-Gutiérrez, Jorge ; Costa, M. M. ; Figueras Huerta, Antonio ; Albaigés Riera, Joan; Viñas, Marc; Solanas, Anna M.; Novoa, Beatriz
Palabras clavePrestige oil spill
Hydrocarbon contamination
Fecha de publicación30-jun-2008
EditorInter Research
CitaciónMarine Ecology Progress Series 362: 25-36 (2008)
ResumenSediments sampled next to the Cíes Islands, a natural reserve of the National Park of Atlantic Islands in Ría de Vigo (Spain), 3 mo after the first tide of fuel from the ‘Prestige’ tanker arrived, were chemically and microbiologically characterized. The chemical analysis of the sediments, using oil fingerprinting techniques, showed the occurrence of fresh ‘Prestige’ fuel oil with a background of older hydrocarbon contamination. The cultured bacterial community of the contaminated sediments harbored a high population of total heterotrophs and alkane degraders and a small proportion of aromatic-degrading bacteria. Based on partial 16S ribosomal RNA gene sequence data, 37 different bacterial strains, isolated in diluted marine agar, were detected. Most of them were classified as members of the groups Gammaproteobacteria (59%) and Alphaproteobacteria (21%), although members of the Bacteroidetes (10%) and of Firmicutes (10%) were also found. Some of the different identified bacteria have previously been described as fuel oil–degrading species such as Alcanivorax, Shewanella, Vibrio, Pseudoalteromonas and Marinomonas. Seven independent isolates were able to grow with hexadecane. However, these 7 strains are grouped under the same phylotype, based on the 16S rRNA gene sequence, and were closely related to Alcanivorax borkumensis (Gammaproteobacteria). No aromatic-degrading activities were detected among the culturable bacteria. The presence of fresh fuel without a detected level of biodegradation suggests that Alcanivorax was an early colonizer after the ‘Prestige’ oil spill. To our knowledge, the isolation of Alcanivorax from environmental samples without the aid of an enrichment procedure has not been previously reported. Our results suggest the ability of Alcanivorax to compete and coexist with other heterotrophic marine bacteria in an oil polluted marine environment rich in the nutrients N and P.
Descripción12 pages.
Versión del editorhttp://dx.doi.org/10.3354/meps07431
Aparece en las colecciones: (IIM) Artículos
(IDAEA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Alcanivorax_strain.pdf438,7 kBAdobe PDFVista previa
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.