This is the first report of the algal toxins of water bloom in Guanting Reservoir of Beijing. The algal compositions and one family of their toxins-microcystins were investigated. The dominant species in the blooms fo...This is the first report of the algal toxins of water bloom in Guanting Reservoir of Beijing. The algal compositions and one family of their toxins-microcystins were investigated. The dominant species in the blooms found in September of 2003 were Microcystis, whose ratio to the number of total algal cells reach 97.2%. The specific species of the microcystis in the bloom included microcystis aeruginosa(52.7%), microcystis wesenbergii(36.2%) and Microcystis pseudofilamentasa(8.3%). The qualitative analysis by HPLC shows that at least five microcystins were contained in the scum of the blooms. The major microcystins were microcystin-RR and microcystin-LR. The quantitative analysis by HPLC indicates that the blooms contained microcystin-RR 1^69 mg/g and microcystin-LR {1.44 mg/g} dried sample. The other three microcystins would be studied later.展开更多
文摘This is the first report of the algal toxins of water bloom in Guanting Reservoir of Beijing. The algal compositions and one family of their toxins-microcystins were investigated. The dominant species in the blooms found in September of 2003 were Microcystis, whose ratio to the number of total algal cells reach 97.2%. The specific species of the microcystis in the bloom included microcystis aeruginosa(52.7%), microcystis wesenbergii(36.2%) and Microcystis pseudofilamentasa(8.3%). The qualitative analysis by HPLC shows that at least five microcystins were contained in the scum of the blooms. The major microcystins were microcystin-RR and microcystin-LR. The quantitative analysis by HPLC indicates that the blooms contained microcystin-RR 1^69 mg/g and microcystin-LR {1.44 mg/g} dried sample. The other three microcystins would be studied later.
