Linkages between bacterioplankton community composition, heterotrophic carbon cycling and environmental conditions in a highly dynamic coastal ecosystem

Environmental Microbiology
Eva TeiraX Antón Alvarez-Salgado

Abstract

We used mesocosm experiments to study the bacterioplankton community in a highly dynamic coastal ecosystem during four contrasting periods of the seasonal cycle: winter mixing, spring phytoplankton bloom, summer stratification and autumn upwelling. A correlation approach was used in order to measure the degree of coupling between the dynamics of major bacterial groups, heterotrophic carbon cycling and environmental factors. We used catalysed reporter deposition-fluorescence in situ hybridization to follow changes in the relative abundance of the most abundant groups of bacteria (Alphaproteobacteria, Gammaproteobacteria and Bacteroidetes). Bacterial carbon flux-related variables included bacterial standing stock, bacterial production and microbial respiration. The environmental factors included both, biotic variables such as chlorophyll-a concentration, primary production, phytoplankton extracellular release, and abiotic variables such as the concentration of dissolved inorganic and organic nutrients. Rapid shifts in the dominant bacterial groups occurred associated to environmental changes and bacterial bulk functions. An alternation between Alphaproteobacteria and Bacteroidetes was observed associated to different phytoplankto...Continue Reading

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Citations

May 25, 2012·Microbial Ecology·Mireia BartronsEmilio O Casamayor
Mar 29, 2013·Proceedings of the National Academy of Sciences of the United States of America·Mylène HugoniPierre E Galand
Feb 7, 2012·Applied and Environmental Microbiology·Anna E Ritchie, Zackary I Johnson
Feb 19, 2011·Annual Review of Marine Science·Elizabeth B Kujawinski
Feb 1, 2012·Environmental Microbiology Reports·Tomàs Llorens-MarèsEmilio O Casamayor
Dec 1, 2009·Environmental Microbiology Reports·Eva TeiraXosé A Alvarez-Salgado
Jul 23, 2013·Environmental Microbiology·Markus von ScheibnerKlaus Jürgens
Nov 20, 2013·The Science of the Total Environment·F MalfattiF Azam
Sep 4, 2012·FEMS Microbiology Ecology·Eva SintesGerhard J Herndl
Sep 29, 2009·FEMS Microbiology Ecology·Jorge Alonso-GutiérrezBeatriz Novoa
Oct 13, 2016·Frontiers in Microbiology·Sachia J TravingLasse Riemann
May 9, 2021·Environmental Science and Pollution Research International·Ammini ParvathiNikhita Gogate
Aug 17, 2021·Environmental Science and Pollution Research International·Jasna VijayanVinod Kumar Nathan

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