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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/134861
Título

Diversity of planktonic photoautotrophic microorganisms along a salinity gradient as depicted by microscopy, flow cytometry, pigment analysis and DNA-based methods

AutorEstrada, Marta ; Henriksen, Peter; Gasol, Josep M. ; Casamayor, Emilio O. ; Pedrós-Alió, Carlos
Palabras claveDiversity
Solar salterns
Plankton
Pigments
Genetic fingerprinting
Fecha de publicaciónabr-2004
EditorFederation of European Microbiological Societies
CitaciónFEMS Micriobiology Ecology 49(2): 281-293 (2004)
ResumenThe diversity of prokaryotic and eukaryotic phytoplankton was studied along a gradient of salinity in the solar salterns of Bras del Port in Santa Pola (Alacant, Spain) using different community descriptors. Chlorophyll a, HPLC pigment composition, flow cytometrically-determined picoplankton concentration, taxonomic composition of phytoplankton (based on optical microscopy) and genetic fingerprint patterns of 16S (cyanobacteria- and chloroplast-specific primers) and 18S rRNA genes were determined for samples from ponds with salinities ranging from 4% to 37%. Both morphological and genetical descriptors of taxonomic composition showed a good agreement and indicated a major discontinuity at salinities between 15% and 22%. The number of classes and the Shannon diversity index corresponding to the different descriptors showed a consistent decreasing trend with increasing salinity. The results indicate a selective effect of extremely high salinities on phytoplanktonic assemblages. © 2004 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved
Descripción13 pages, 8 figures, 5 tables
Versión del editorhttps://dx.doi.org/10.1016/j.femsec.2004.04.002
URIhttp://hdl.handle.net/10261/134861
DOI10.1016/j.femsec.2004.04.002
Identificadoresdoi: 10.1016/j.femsec.2004.04.002
issn: 0168-6496
issn: 1574-6941
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