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湖泊科学  2008 

我国水华蓝藻的新类群——阿氏浮丝藻(Planktothrixagardhii)生理特性

DOI: 10.18307/2008.0405

Keywords: 水华种,阿氏浮丝藻,颤藻,生理特性,色素,光合活性

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Abstract:

阿氏浮丝藻(Planktothrixagardhii)是水华蓝藻的重要类群,实验对我国不同省份分离到的5株阿氏浮丝藻生长速率、色素组成、光合活性参数进行了测定.结果表明分离于广州的HAB1128叶绿素a(Chl.a)含量较低,藻蓝蛋白(C-PC)比例和含量较高.电子传递速率(ETR)测定结果表明,HAB1128的ETR曲线较高,最大ETRmax值也显著高于其余4株,高效的光能电子传递链弥补了光合色素Chl.a的不足,以致HAB1128保持了中性的生长速率.分离于武汉东湖的HAB631则与之正好相反,较高的Chl.a受限于光能电子传递链的薄弱,生长速率表现较低.分离于北京、上海、昆明的3株藻株在各项生理指标上无显著差异.

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