| a comparative study of florida strains of cylindrospermopsis and aphanizomenon for cylindrospermopsin production. | the toxin cylindrospermopsin (cyn) is produced by a variety of cyanobacterial genera. one of these, cylindrospermopsis raciborskii, is generally assumed to be the source of cyn in lakes and rivers in florida, usa. however, in this study, none of the eight florida isolates of this species tested contained the genetic determinants involved in toxin production nor did they produce cyn. we show for the first time that aphanizomenon ovalisporum isolated from a pond in this state has the genes putativ ... | 2008 | 17928021 |
| toxic cyanobacteria in florida waters. | the occurrence of toxic cyanobacterial blooms in florida waters have become more prominent following increased growth, declining groundwater supplies, and identification of impaired surface waters as future drinking water sources. cyanobacterial toxins have been identified in source waters used for drinking water supply and in post-treated drinking water during algal bloom events. algal toxin concentrations in post-treated drinking water have exceeded existing and proposed world health organizat ... | 2008 | 18461767 |
| Facultative diazotrophy increases Cylindrospermopsis raciborskii competitiveness under fluctuating nitrogen availability. | Relative fitness of three bloom-forming and potentially toxic cyanobacteria from the subtropical St. John's River, Florida were investigated under a range of nutrient conditions, during a bloom dominated by Cylindrospermopsis raciborskii. Nitrogen (N) was the primary nutrient limiting phytoplankton primary productivity and biomass. Phytoplankton biomass was also enhanced by phosphorus (P) added either alone or jointly with N, suggesting different components of the phytoplankton experienced disti ... | 2011 | 22126519 |