温室水培条件下集球藻生长特性和细胞结构特征  

Characteristics of Cellular Structures and Growth Properties of Palmellococcus sp.Using Water Culture in Green House

作　　者：饶本强[1,2] 吴沛沛[2] 刘永定[2] 

机构地区：[1]信阳师范学院生命科学学院,河南信阳464000 [2]中国科学院水生生物研究所淡水生态与生物技术国家重点实验室,湖北武汉430072

出　　处：《信阳师范学院学报（自然科学版）》2012年第2期189-192,共4页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：中国博士后科学基金资助项目(20100480920);淡水生态与生物技术国家重点实验室资助项目(2008FBZ21);武汉市科技局与内蒙古自治区发改委重大科技产业化专项项目(200720112031);河南省高等学校青年骨干教师资助计划项目(2010GGJS-106);信阳师范学院青年骨干教师资助计划项目;信阳师范学院高层次人才科研启动基金项目

摘　　要：以从荒漠土壤结皮中分离的集球藻为材料,在温室条件下研究液体培养集球藻细胞生长特性和细胞形态结构的变化.结果表明:在静置水培条件下,集球藻的生长活性较低,叶绿素a含量和叶绿素a荧光活性增长缓慢;生长发育过程中集球藻细胞形态结构呈现阶段性变化特征,在生长后期和衰老期有大量脂肪体和淀粉粒的积累以及细胞器结构的解体和消失.Palmellococcus sp.,isolated from the desert algal crusts,was selected as the experiment material.The changes on the cellular structure and the growth properties of Palmellococcus sp.were investigated by means of liquid culture in the greenhouse.The results showed that Palmellococcus sp.displayed lower growth activities,such as slow increase in chlorophyll-a content and photosynthetic systemⅡ（PSⅡ） activities indicated by chlorophyll a fluorescence（Fv/Fm）.Also the cellular structures of Palmellococcus sp.presented gradual changes throught out the development process,such as the accumulations of lipid bodies and starches,and the disintegration and disappearance of cellular organs.

关 键 词：土壤藻类 集球藻 生长特性 细胞结构 

分 类 号：Q949.25[生物学—植物学]