金藻是藻类植物中的一个主要类群，对环境具有很好的指示作用。目前共描述过1000多个种。锥囊藻科是金藻中的一个大科，海水和淡水中均有分布，浮游或附着在其它藻类及水生高等植物上，目前描述过的种类有282种。该科种类多，分布广，但有关分类学的研究日渐薄弱，且主要集中在欧洲，中国有关锥囊藻科的文献报道非常少。 本项目拟对沼泽湖泊分布较广的区域（如大兴安岭、若尔盖湿地、长三角地区等）进行针对性的藻类标本采集，利用光镜和扫描电镜对锥囊藻科藻类及其孢囊进行分类鉴定；同时现场观察与室内培养相结合，对锥囊藻科的孢囊形成及所属物种进行研究，探讨孢囊形态在锥囊藻科分类中的作用，为该类群的分类鉴定提供新的分类依据；利用分子生物学技术研究一些种类的分子特征，为我国藻类资源调查和世界金藻分类研究提供新的资料，为世界金藻和金藻孢囊在古环境中的应用积累重要资料，也为将来锥囊藻科分子系统学奠定基础。

Chrysophyta is an important group of algae, including more than 1000 species described taxa, which are good indicators of environmental change. Dinobryaceae Ehrenberg is a big family of Chrysophyta, and 282 species (marine and freshwater) were described. This family has a variety of species and wide distribution, but the taxonomic research is on the decline. And most reports of Dinobryaceae were from Europe, few were from China. In this project algae samples will be collected focused from the area with large distribution of lakes and wetlands, such as the Great Xing'an Mountains, Zoigê and Yangtze River Delta. The family Dinobryaceae and their stomatocysts will be observed with LM and SEM. The formation and biological affinity of stomatocysts will be studied by field observation and culture in lab. The role of stomatocyst morphology in the taxonomy of Dinobryaceae will be discussed to provide new evidence of classification. Molecular characterizations of some species of Dinobryaceae will be studied. This project can offer the new information for Chinese algae resources and taxonomy of world chrysophyte, accumulate important data for the application of chrysophyte and stomatocysts in paleoenvironment, and lay the foundation of molecular systematics of Dinobryaceae.