摘要
考察了不同温度对8种底栖硅藻生长及其理化成分的影响.结果表明:温度低于15℃或高于30℃均不利于细胞生长,同时也不利于胞内理化成分的积累.在15~25℃之间细胞比生长速率及主要理化成分(叶绿素、胞内蛋白和多糖、胞外多糖及总脂肪)含量均可达到最大,而不同藻种的理化成分最大含量也有较大的差异,最高和最低叶绿素含量差值可达8.0 mg/L,胞内蛋白含量差约4.0%多糖含量差约14.0%,总脂肪含量差约为8.0%,胞外多糖浓度含量差约15mg/L.
Effects of temperature on growth and physiological biochemical compositions of eight benthic diatoms are researched.The results indicate that it is unfavorable for the cell growth and accumulation of the intracellular biochemical compositions when the temperature is lower than 15 ℃ or higher than 25℃.The specific growth rate and contents of main biochemical compositions(the chlorophyll,the intracellular protein and polysaccharide,the extracellular polysaccharide and the total lipid) can gain maximum between...
出处
《烟台大学学报（自然科学与工程版）》
CAS
北大核心
2009年第1期30-34,共5页
Journal of Yantai University(Natural Science and Engineering Edition)
基金
山东省自然科学基金资助项目(Y2007D19)
关键词
底栖硅藻
温度
生长
生理生化成分
benthic diatoms
temperature
growth
biochemical compositions
