English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/154288
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

Optical properties of dissolved organic matter relate to different depth-specific patterns of archaeal and bacterial community structure in the North Atlantic Ocean

AuthorsGuerrero-Feijóo, E.; Nieto-Cid, Mar ; Dobal-Amador, Vladimir; Hernando-Morales, Víctor; Sintes, Eva; Álvarez, Marta ; Balagué, Vanessa ; Varela, Marta M.
KeywordsPyrosequencing
Diversity
DOM optical properties
Marine microbes
CARD-FISH
T-RFLP
ARISA
Deep sea
Atlantic waters
Issue Date2017
PublisherOxford University Press
CitationFEMS Microbiology Ecology 93(1): 1-14 (2017)
AbstractProkaryotic abundance, activity and community composition were studied in the euphotic, intermediate and deep waters off the Galician coast (NW Iberian margin) in relation to the optical characterization of dissolved organic matter (DOM). Microbial (archaeal and bacterial) community structure was vertically stratified. Among the Archaea, Euryarchaeota, especially Thermoplasmata, was dominant in the intermediate waters and decreased with depth, whereas marine Thaumarchaeota, especially Marine Group I, was the most abundant archaeal phylum in the deeper layers. The bacterial community was dominated by Proteobacteria through the whole water column. However, Cyanobacteria and Bacteroidetes occurrence was considerable in the upper layer and SAR202 was dominant in deep waters. Microbial composition and abundance were not shaped by the quantity of dissolved organic carbon, but instead they revealed a strong connection with the DOM quality. Archaeal communities were mainly related to the fluorescence of DOM (which indicates respiration of labile DOM and generation of refractory subproducts), while bacterial communities were mainly linked to the aromaticity/age of the DOM produced along the water column. Taken together, our results indicate that the microbial community composition is associated with the DOM composition of the water masses, suggesting that distinct microbial taxa have the potential to use and/or produce specific DOM compounds
Description14 páginas, 6 figuras, 4 tablas
Publisher version (URL)http://dx.doi.org/10.1093/femsec/fiw224
URIhttp://hdl.handle.net/10261/154288
DOI10.1093/femsec/fiw224
ISSN0168-6496
E-ISSN1574-6941
Appears in Collections:(ICM) Artículos
(IIM) Artículos
Files in This Item:
File Description SizeFormat 
Optical_properties_2017.pdf1,02 MBAdobe PDFThumbnail
View/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.