藻细胞的聚磷作用及其成矿意义

研究了现代蓝藻盐泽螺旋藻（Ｓｐｉｒｕｌｉｎａ ｓｕｂｓａｌｓａ）在富磷环境中细胞的聚磷作用及其与磷块岩形成的关系。实验证明，在富磷环境中盐泽螺旋藻细胞从环境中吸收磷的速度快，并主要用以合成多聚磷酸盐。模拟成矿试验证明，从藻细胞中提取出来的多聚磷酸盐在Ｃａ２＋ －ＨＰＯ２－４ －ＨＣＯ－３ －Ｆ－ －Ｈ２Ｏ 体系中，在常温常压及偏碱性条件下形成的主要成分为碳氟磷灰石、方解石及非晶质磷酸盐的矿物，为藻类成矿提供了新的极有意义的证据

ACCUMULATION OF PHOSPHORUS AND MINERALIZA TIONAL SIGNIFICANCE OF ALGAL CELLS

It was studies that the algal cells accumulate phosphate in with environment and it is related to the formation of phosphorites.The test results showed that the cells of Spirulina subsalsa could absorbe phoshate quickly in environment with rich phosphorus during the logarithmic growth phase and could synthetize a large amount of the polyphosphate in cells.The simulated test of mineralization showed that under the normal atmospheric temperature and pressure and in the Ca 2 HPO 2- 4 HCO - 3 F - H 2O system, the polyphosphate extracted from algal cells of Spirulina subaslsa may form mineral deposits.It contains mainly carbonate fluorapatite, caloite and non crystal phosphorus.These results provided a new important evidence for the theory of biological mineralization.