碱族、碱土族元素对衣藻细胞生长分裂的影响

近年来,微量元素对生物的影响,越来越广泛地受到重视。综观生物微量元素与周期律之间的关系,我们曾以梨形四膜虫为实验材料,探讨了元素周期表中若干元素对它的营养促进和毒性抑制作用,并作了初步的报道,此外,还做过锗和稀土元素对梨形四膜虫生长分裂的影响,本文以绿藻门中的衣藻细胞为材料,研究了碱族、碱土族元素对衣藻生长分裂的影响,探索其作用的规律性。

Effects of Alkali and Alkaline Earth Groups of Population Growth of Chlamydomonas Reinhardtii

The influence of alkali and alkaline earth group elementes of different concentrations on the population growth of green algae that is employed as a biological model. A certain regularity between biological effects of the elements and their position in the periodic table has been discussed. Chlamydomonas reinhardtii were cultured in the solution containing some inorganic salts. Based on relation rate of proliferation (R) on each element of IA and IIA Groups,the stimulating concentrations (when R>100%) and inhibitory concentrations (when R<100%) have been obtained. The results show that the toxicity of the elements on the algae will increase with the increase of their atomic number (Z) in the same group except Li and Mg.