TY - JOUR AU - Ostermaier, Veronika AU - Schanz, Ferdinand AU - Köster, Oliver AU - Kurmayer, Rainer PY - 2012 DA - 2012/12/07 TI - Stability of toxin gene proportion in red-pigmented populations of the cyanobacterium Planktothrix during 29 years of re-oligotrophication of Lake Zürich JO - BMC Biology SP - 100 VL - 10 IS - 1 AB - Harmful algal blooms deteriorate the services of aquatic ecosystems. They are often formed by cyanobacteria composed of genotypes able to produce a certain toxin, for example, the hepatotoxin microcystin (MC), but also of nontoxic genotypes that either carry mutations in the genes encoding toxin synthesis or that lost those genes during evolution. In general, cyanobacterial blooms are favored by eutrophication. Very little is known about the stability of the toxic/nontoxic genotype composition during trophic change. SN - 1741-7007 UR - https://doi.org/10.1186/1741-7007-10-100 DO - 10.1186/1741-7007-10-100 ID - Ostermaier2012 ER -