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Vertical distribution of bacterioplankton in Lake Averno in relation to water chemistry

TitoloVertical distribution of bacterioplankton in Lake Averno in relation to water chemistry
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2013
AutoriPaganin, Patrizia, Chiarini L., Bevivino Annamaria, Dalmastri Claudia, Farcomeni A., Izzo G., Signorini A., Varrone C., and Tabacchioni Silvia
RivistaFEMS Microbiology Ecology
Volume84
Paginazione176 - 188
Data di pubblicazione2013///
Parole chiaveArchaea, Bacteria, Denaturing gradient gel electrophoresis, Environmental parameters, Lake water column, Nonlinear multidimensional scaling
Abstract

The effects of environmental factors on bacterioplankton distribution along the water column of Lake Averno (Naples, Italy) have been investigated by means of denaturing gradient gel electrophoresis (DGGE) of polymerase chain reaction (PCR)-amplified 16S rRNA gene fragments, and multivariate analysis applied to molecular data and physico-chemical parameters. Bacterial richness, estimated from DGGE profiles, remains constant throughout the water column, whereas archaeal richness increases with depth. Moreover, archaeal richness was significantly correlated to most of the measured abiotic variables, whereas bacterial richness did not. Analysis of sequences from DGGE bands revealed that the dominant bacterial populations belong to Alphaproteobacteria, Betaproteobacteria, Deltaproteobacteria, Bacteroidetes and Firmicutes, whereas sequences of the archaeal DGGE bands are affiliated to Methanomicrobiales and Methanosarcinales orders. Moreover, bacterial sequences affiliated to Proteobacteria and Bacteroidetes do not group closely to typical freshwater lineages/clades/tribes within these phyla. Bacterioplankton distribution along the water column was apparently correlated with the vertical gradient of physico-chemical parameters as a statistically significant relationship between most of them with grouping of specific taxonomic units was observed. © 2012 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved.

Note

Export Date: 22 March 2013Source: Scopus

URLhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84874669872&partnerID=40&md5=e77358da621c99bfe11fcfc69ab32560
Citation Key3895