营养盐对海洋卡盾藻生长与产毒的影响

被引:7
作者
刘望鹏
黄娟
杨维东
李宏业
崔伟民
刘洁生
机构
[1] 暨南大学生命科学技术学院
关键词
海洋卡盾藻; 溶血毒素; 营养盐;
D O I
暂无
中图分类号
X173 [环境植物学];
学科分类号
071012 ; 0713 ;
摘要
海洋卡盾藻(Chattonella marina)是我国南方重要的有害赤潮原因种,其产生的溶血毒素、活性氧等可能是造成鱼类死亡的重要原因.在实验室条件下,研究了氮、磷和铁等营养盐对海洋卡盾藻生长及产毒的影响,以期为阐明海洋卡盾藻溶血毒素生成机制奠定基础.研究结果发现:在铁、氮、磷盐三因素四水平正交实验条件下,铁盐和氮盐是影响海洋卡盾藻生长的显著因子;氮盐和磷盐是影响海洋卡盾藻产毒的显著因子;铁盐浓度0.492mg·L-1、氮盐浓度375mg·L-1、磷盐浓度5mg·L-1时海洋卡盾藻的比生长速率最大;铁盐浓度0mg·L-1、氮盐浓度375mg·L-1、磷盐浓度0.5mg·L-1时海洋卡盾藻的产毒能力最强,即高氮、低磷条件下有利于海洋卡盾藻溶血毒素的合成.
引用
收藏
页码:394 / 401
页数:8
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