硼对盐藻生长与物质积累的调控作用

Regulation of B on Growth and Material Accumulation of Dunaliella Salina

实验研究了不同浓度的硼对盐藻细胞生长与物质积累的调控作用。结果表明,培养液中供给硼过多或过少都不利于盐藻细胞的生长与物质积累。以培养基中4mg/L的硼浓度对盐藻细胞生长、蛋白质合成与β-胡萝卜素积累的促进作用最大。这一硼浓度可用于盐藻的生产性培养。当培养液中硼浓度较高(8mg/L)或较低(2mg/L)时,单个盐藻细胞中的蛋白质与β-胡萝卜素含量较高。但此时,因培养液中细胞密度较低,盐藻细胞积累的物质总量仍然较少。在硼浓度较高或较低的逆境条件下,盐藻可能通过适应性反应形成了逆境蛋白质与胡萝卜素等。

The experiment study regulation of different concentration B on growth and material accumulation of Dunaliella salina. The result shows more or less B goes against Dunaliella salina cell growth and material accumulation. B of 4mg/L is advantageous to growth, protein synthesizes and β - carotene accumulation of Dunaliella salina in culture medium. It is used to culture Dunaliella salina. When the concentration of B is 8mg/L or 2mg/L,the content of protein and β - carotene in each cell Dunaliella salina is higher. But cell density is lower right now ,the total material accumulation of Dunaliella salina cell is less. It may be that Dunaliella salina form adverse protein and carotene by the adaptive response under the rich or poor B stress.