有机碳化合物对湛江等鞭金藻生长的影响

为了探讨有机碳化合物对湛江等鞭金藻的营养效应,实验设置了在f/2培养基中添加葡萄糖、乙酸钠、半乳糖、甘油、乙醇、柠檬酸钠和甘氨酸等7种有机碳化合物的处理,测定了湛江等鞭金藻(Isochrysis zhanjiangensis)的生长情况。结果表明,参试的7种有机碳化合物中,甘氨酸对湛江等鞭金藻细胞生长的促进作用最明显,而乙醇对藻细胞生长的促进效果不明显,其他5种均有不同程度的促进作用。7种有机碳对湛江等鞭金藻胞内蛋白质含量和总脂的积累量具有一定差异性影响。0.5～10g·L^-1的葡萄糖、乙酸钠均可提高胞内蛋白质和总脂的含量。半乳糖对总脂积累量的影响不明显。

Effects of organic carbon compounds on the growth of Isochrysis zhanjiangensis

The Isochrysis zhangjiangensis were treated with 7 different of organic compounds,which were glucose,sodium acetate,galactose,glycerin,ethanol,sodium citrate and glycin. The results showed that growth of algae cells was significantly improved by glycin,but not by ethanol. Others organic compounds also could improve cell growth different extent. Different organic compounds had different effects on accumulations of proteins and fatty acids in the cells. The accumulations of proteins and fatty acids were improved when algae cells were treated with 0～10g·L^-1concentrations of glucose or sodium acetate,but not improved when treated by glycerin or galactose. Only in a certain concentration range could ethanol,sodium citrate or glycin improve the cell accumulations of proteins and fatty acids.