Long-term monitoring reveals carbon-nitrogen metabolism key to microcystin production in eutrophic lakes.

ABSTRACT: The environmental drivers contributing to cyanobacterial dominance in aquatic systems have been extensively studied. However, understanding of toxic vs. non-toxic cyanobacterial population dynamics and the mechanisms regulating cyanotoxin production remain elusive, both physiologically and ecologically. One reason is the disconnect between laboratory and field-based studies. Here, we combined 3 years of temporal data, including microcystin (MC) concentrations, 16 years of long-term ecological research, and 10 years of molecular data to investigate the potential factors leading to the selection of toxic Microcystis and MC production. Our analysis revealed that nitrogen (N) speciation and inorganic carbon (C) availability might be important drivers of Microcystis population dynamics and that

SUBMITTER: Beversdorf LJ 

PROVIDER: S-EPMC4428211 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature