English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/59935
Share/Impact:
Statistics
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:

Title

Extremely halophilic microbial communities in anaerobic sediments from a solar saltern

AuthorsLópez-López, Arantxa ; Yarza, Pablo ; Richter, Matthew J.; Suárez-Suárez, A. ; Antón, Josefa; Niemann, H.; Rosselló-Mora, Ramón
Issue Date2010
PublisherJohn Wiley & Sons
CitationEnvironmental Microbiology Reports 2: 258- 271 (2010)
AbstractThe prokaryotic communities inhabiting hypersaline sediments underlying a crystallizer pond of a Mediterranean solar saltern have been studied in a polyphasic approach including 16S rRNA and dsrAB gene libraries analysis [the last encoding for dissimilatory (bi)sulfite reductase], most probable number of cultivable counts, and metabolic measurements of sulfate reduction. The samples studied here represent one of the most hypersaline anoxic environments sampled worldwide that harbour a highly diverse microbial community different from those previously reported in other hypersaline sediments. Both bacterial and archaeal types are present but, contrarily to the overlying brine system, the former dominates. Molecular analyses indicated that the bacterial fraction is highly diverse and mostly composed by groups related to sulfate-reducing bacteria (SRB). In good agreement with this, sulfate-reducing activity was detected in the sediment, as well as the metabolic diversity within SRB (as indicated by the use of different electron donors in enrichments). On the other hand, the archaeal fraction was phylogenetically homogeneous and, surprisingly, strongly affiliated with the MBSl-1 candidate division, an euryarchaeotal group only reported in deep-sea hypersaline anoxic basins of the Western Mediterranean, for which a methanogenic metabolism was hypothesized. The hypersaline studied samples constitute a valuable source of new prokaryotic types with metabolisms adapted to the prevalent in situ extreme conditions. © 2009 Society for Applied Microbiology and Blackwell Publishing Ltd.
Publisher version (URL)http://dx.doi.org/10.1111/j.1758-2229.2009.00108.x
URIhttp://hdl.handle.net/10261/59935
DOI10.1111/j.1758-2229.2009.00108.x
Identifiersdoi: 10.1111/j.1758-2229.2009.00108.x
issn: 1758-2229
Appears in Collections:(IMEDEA) Artículos
Files in This Item:
File Description SizeFormat 
Manuscript_text.doc385,5 kBMicrosoft WordView/Open
Figure_1.eps299,53 kBPostscriptView/Open
Figure_2.eps496,59 kBPostscriptView/Open
Figure 4.eps432,89 kBPostscriptView/Open
Figure_S5.tif1,51 MBTIFFThumbnail
View/Open
Figure_3.eps1,17 MBPostscriptView/Open
Figure_S2.eps850,49 kBPostscriptView/Open
Figure_S3.eps846,89 kBPostscriptView/Open
Figure_S4.tif3,79 MBTIFFThumbnail
View/Open
Tables.doc149,5 kBMicrosoft WordView/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.