▪ Abstract Heterotrophic bacteria perform two major functions in the transformation of organic
matter: They produce new bacterial biomass (bacterial secondary production [BP]), and they …

The oxic realms of freshwater and marine environments are zones of high prokaryotic
mortality. Lysis by viruses and predation by ciliated and flagellated protists result in the …

Microbial ecology is the study of interactions among microbes in natural environments and
their roles in biogeochemical cycles, food web dynamics, and the evolution of life. Microbes …

Predation by bacterivorous protists in aquatic habitats can influence the morphological
structure, taxonomic composition and physiological status of bacterial communities. The …

Predation is a major mortality factor of planktonic bacteria and an important sha** force for
the phenotypic and taxonomic structure of bacterial communities. In this paper we:(1) …

Seasonal shifts in bacterioplankton community composition in Toolik Lake, a tundra lake on
the North Slope of Alaska, were related to shifts in the source (terrestrial versus …

Flow cytometry has become a valuable tool in aquatic and environmental microbiology that
combines direct and rapid assays to determine numbers, cell size distribution and additional …

Free-living and particle-associated marine prokaryotes have physiological, genomic, and
phylogenetic differences, yet factors influencing their temporal dynamics remain poorly …

In this study, we confirm the relationship between temperature and Synechococcus sp.
experimental growth rates (r= 0.87, p< 0.005) and provide evidence of the existence of a …

The seasonal variation in the grazing effect of mixotrophic flagellates on bacterioplankton
was assessed during an annual cycle in an oligotrophic coastal station in the northwest …