Related Experiment Video
Updated: Aug 14, 2026

An Aquatic Microbial Metaproteomics Workflow: From Cells to Tryptic Peptides Suitable for Tandem Mass Spectrometry-based Analysis
Published on: September 15, 2015
Phylogenetic and functional diversity of bacterioplankton during Alexandrium spp. blooms
Maria Montserrat Sala1, Vanessa Balagué, Carlos Pedrós-Alió
1Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar-CMIMA CSIC, P. Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalunya, Spain. msala@icm.csic.es
Abstract:
The phylogenetic and functional diversity of the bacterioplankton assemblage associated with blooms of toxic Alexandrium spp. was studied in three harbours of the NW Mediterranean. Denaturing gradient gel electrophoresis and DNA sequence analysis revealed the presence of a bacterium within the Roseobacter clade related to the presence of Alexandrium cells. Phylogenetic diversity was affected by the presence of Alexandrium spp., geographic situation and seasonality. In contrast, functional diversity, assessed with Biolog plates, was clearly affected by seasonality, but not by the presence of Alexandrium, indicating that the presence of the bacterium associated with the blooms was not enough to modify the metabolic pattern of the bacterioplankton assemblage.
Related Concept Videos
Marine Microbial Ecology
Bacterial Phylum Cyanobacteria
Diversity of Protists I
Diversity of Protists III
Deep Sea Microbial Ecology
Diversity of Archaea II

