微量元素生物效应及生产若干问题

介绍了笔者从事微量元素生物效应研究的系列成果．例如：(1)Mo是生物必需的微量元素。钼缺乏时，许多植物(尤其豆目植物)会生长不良。然而，钼过多，生长欠佳．叶黄斑症增加，种群和个体数骤减．豆目植物表现特别明显．(2)Cr是笔者研究较多的微量元素之一。铬过量，除急性中毒外，常常引起细胞、组织、器官的畸变和病变(特别是瘤变)．(3)REE(稀土元素)是生物吸收的微量，超微量元素、各种种群、个体及不同生长阶段，吸收和需求量不一．REE是植光合量子过程的重要元素等．从生物效应入手，是研究微量元素的一条重要途径，同时，又可为微量元素——有机物制剂生产，提供重要途径．

Summary and Anticipating Problems of the Biological Effect of the Trace Elements and Their Production

The essay introduces some research results of the biological effect of the trace elements. For example:1. Mo is a trace element good for the growth of biology. When it is less than the lowestlimit of its concentration. the growth of the plants may be retarded. especially legume. Butwhen its content is higher than the limit of its concentration, the growth of legumes may alsobe retarded. The tawny points are increasing in number when concentration is higher, thespecies and plant population may decrease abruptly on the region.2. When Cr is higher than the limit of the concentration. apart from causing acute poison. monstrosity of pathology may also occur in cells, textures or organs.3. REE, a kind of trace elements are absorbed differently by the biology. REE are mainsubstances with a capacity of light quantum in the course of the photosynthesis.The essay also deals with some problems of the production of the trace elements-organic(natural) substances.