Production of Cyanobacterial Hepatotoxin Microcystin in a Nutrient-limited Culture of Microcystis viridis.
スポンサーリンク
概要
- 論文の詳細を見る
The production of microcystin by a nutrient-starved <I>Microcystis viridis</I> culture with a nutrient gradient was examined. The specific production rate of microcystin increased with increasing nitrate and phosphate concentrations. The specific production rates of nitrate-starved cultures after nitrate supply were higher than those of phosphate-starved cultures after phosphate supply showing that nitrogen is a more important nutrient for microcystin production than phosphorus. The time course of microcystin production by nitrate-starved <I>M.viridis</I> after nitrate supply was evaluated at 2h intervals. The microcystin-RR content increased to more than 2-fold within 24 hrs. An increase in dry weight was not observed within 24 hrs, showing microcystin was produced prior to cell growth for nitrogen-starved <I>M. viridis</I>. The specific production rate of microcystin-RR seemed to increase with increasing nitrate cell quota, which suggested that the nitrogen cell quota might regulate the rate of production of microcystin in lakes and reservoirs.
- 日本水処理生物学会の論文
日本水処理生物学会 | 論文
- Development of a Boat Equipped with UV Lamps for Suppression of Freshwater Red Tide in a Reservoir
- 微生物活性助剤を添加した生物処理反応槽に出現する微小動物相の特徴
- 硝化促進型SBRプロセスにおける処理特性と汚泥沈降性に及ぼす撹拌の影響
- 高効率コンポスト化のための切り返しの役割
- 非イオン界面活性剤によるBst DNAポリメラーゼの阻害抑制とクリプトスポリジウムDNA検出への応用