镧-氨基酸络合物对球等鞭金藻的影响

Effects of lanthanum-amino acid complexes on Isochrysis galbana

本文首次研究了镧－脯氨酸和镧－苯丙氨酸络合物对球等鞭金藻（Ｉｓｏｃｈｒｙｓｉｓｇａｌｂａｎａ）的影响，结果表明，两种络合物对球等鞭金藻细胞繁殖及叶绿素的合成有明显的促进作用，浓度范围为５－２０ｍｇ／ｄｍ３时，至第６天细胞数分别提高１０．８％～１７．２％，１１．５％－２０．５％（Ｐ＜０．０５）；叶绿素浓度分别提高３１．７％－３７．５％，４４．７％～４８．４％（Ｐ＜０．０５），其中以浓度为１０ｍｇ／ｄｍ３的实验组最高。镧的氨基酸络合物对球等鞭金藻的作用效果与镧相比是等同的。

The study on the effect of lanthanum-proline and lanthanum-phenylalanine complexes on Isochrysis galbana showed that these two complexes could distinctly enhance its cell reproduction and chloro- phyll synthesis. When the concentrations of lanthanum-proline and lanthanum-phenylalanine were 5-20 mg/ dm3, the cell numbers on the sixth day were increased by 10.8%-17.2% and 11.5%-20.5%, and the con- centrations of chlorophyll by 31.7%-37.5% and 44. 7%-48.4%, respectively(P<0.05), with an optimum concentration of 10mg/dm3. The effect of lanthanum-proline and lanthanum-phenylalanine on Isochrysis gal- bana was the same as that of lanthanum.