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盐度降低对长心卡帕藻原初光化学反应的影响

, PP. 146-152

Keywords: 长心卡帕藻,低盐胁迫,原初光化学反应

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Abstract:

为探讨大量降雨如何导致热带产胶海藻长心卡帕藻死亡,通过快速叶绿素荧光诱导动力学曲线分析,研究了盐度降低对热带产胶海藻长心卡帕藻光化学反应的影响,结果表明,盐度降低对PSⅡ反应中心、供体和受体侧的光化学过程产生不同程度的影响。盐度为28时,虽然反应中心开放程度下降11%,受体侧PQ库减小,QA被还原次数下降,反应中心吸收光能出现下降同时热耗散能量出现增加,但是单位面积反应中心RC/CS0,RC/CSm数量显

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