Natural variation in the microcystin synthetase operon mcyABC and impact on microcystin production in Microcystis strains
Mikalsen, Bjørg; Boison, G; Skulberg, Olav M.; Fastner, J; Davies, William; Gabrielsen, Tove M; Rudi, Knut; Jakobsen, Kjetill Sigurd (2003)