胞外酶在水生生态系统的物质循环和能量转化过程中具有重要作用 ,其研究对深入了解海洋中碳的生物地球化学循环过程及赤潮藻在赤潮发生过程中的应对机制具有重要意义 .本文综述了海水中胞外酶的研究方法、活性分布特征、粒径分布特征、影响调控机制及生态学意义等方面的研究进展 ,同时介绍胞外酶作为一项新型营养状况指标的意义 .Ectoenzymes play an important role in the material cycle and energy conversion in aquatic ecosystem. The researches of ectoenzyme are of significance in further understanding the marine carbon biogeochemical cycle and the countermeasures of algae under bloom conditions.In this paper, the research methods, characteristic activity and size distribution, controlling factors and their ecological significances of algal ectoenzymes were reviewed, and ectoenzyme introduced as one kind of new trophic state index.国家重点基础科研究发展规划资助项目 ( 2 0 0 1CB40 970 6)
