海洋尖尾藻的摄食  

The Feeding of Oxyrrhis Marina

作　　者：安鑫龙[1] 李雪梅[1] 李亚宁[2] 

机构地区：[1]河北农业大学海洋学院赤潮与水环境实验室,河北秦皇岛066003 [2]南开大学滨海学院,天津300270

出　　处：《海洋技术》2012年第1期100-102,共3页Ocean Technology

基　　金：河北省秦皇岛市科学技术研究与发展计划资助项目(201101A189);河北农业大学海洋学院博士科研启动基金资助项目(BQ08-98)

摘　　要：海洋尖尾藻(Oxyrrhis marina)是世界广布的一种赤潮原因甲藻。以亚心形扁藻(Platymonas subcordiformis)和米氏凯伦藻(Karenia mikimotoi)等6种海洋微藻为饵料对海洋尖尾藻的摄食进行了显微观察。结果表明:海洋尖尾藻的摄食方式为滤食,整个摄食过程分为水流形成和胞吞作用两个阶段;水流形成依靠海洋尖尾藻整个细胞围绕饵料藻旋转实现,胞吞器官为纵沟;每个海洋尖尾藻细胞内可同时容纳饵料藻一至数个。此外,分属于不同门类的供试藻均能被海洋尖尾藻摄食。Oxyrrhis marina is one of dinoflagellates and widely distributed in the global coastal waters, which can initiate algal blooms at the appropriate time. Microscopic observations on feeding process of Oxyrrhis marina were studied. The results show that the feeding mode of Oxyrrhis marina is filter-feeding and the whole feeding process is divided into two stages： the first stage named flow- formation and the second stage endocytosis. Flow-formation is dependent on rotation of the whole cell of Oxyrrhis marina with food algae and the longitudinal furrows are filter-feeding organs. There is one or several food algae contained in each Oxyrrhis marina cell at the same time. It is also shown that all the experimented food algae can be fed by Oxyrrhis marina.

关 键 词：海洋尖尾藻 摄食方式 摄食过程 滤食 胞吞作用 

分 类 号：Q949[生物学—植物学]