TOXINPRODUKTION VID BLOMNING AV BLÅGRÖNA ALGER (CYANOBAKTERIER) / Toxin Production in Blooms of Blue-Green Algae (Cyanobacteria)
The blue-green algal species, Anabaena, Aphanizomenon, Microcystis and Planktothrix, that usually dominates algal blooms, are the same species that produce neuroroxin and/or livertoxin. Furthermore, production of lipopolysacharide endotoxin by blue-green algae has been reported. The ecological significance of blue-green algal toxinproduction is unknown. Protection against phytoplankton consuming zooplankton or chemical warfare (in the competition for nutrients) against other phytoplankton have been suggested. Toxic algal blooms do not exclusive occur in eutrophic water but can also appear in mesotrophic and oligotrophic lakes.