金属营养元素与蓝藻的相互作用研究进展

水体富营养化所引起的蓝藻水华对自然环境及人类社会产生诸多不良影响,通过控制并降低水体中营养物质的浓度相对于其他措施更能有效地降低蓝藻水华的发生程度。在此以金属营养元素为重点,讨论了金属营养元素在蓝藻新陈代谢过程中的作用,综述了蓝藻与金属营养元素间相互作用:蓝藻可改变水体中金属营养元素的含量和分布,而金属营养元素的种类及含量变化也可影响到蓝藻的数量、种类与分布。调研了国内地表水体中金属营养元素的监控现状,建议政府部门加强金属营养元素的监控,以期为蓝藻的监控预警及重金属污染治理等工作开拓新的思路。

A Review on the Interactions between Metal Nutrients and Cyanobacteria

Cyanobacterial blooms caused by water eutrophication have harmful effects on environment and human society. It''s an effective measure to decrease the degree of cyanobacterial bloom by controlling and reducing the concentration of nutrient substances. The article proposed here focuses on the metal nutrient elements, discusses the role of metal nutrients in cyanobacterial metabolism, and reviews the interactions between metal nutrients and cyanobacteria. Cyanobacteria can change the concentration and distribution of metal nutrients in water, while the type and concentration change of metal nutrients also affect the amount, species and distribution of cyanobacteria. It is suggested to enhance the monitoring of metal nutrient elements in surface water based on the investigation of current surface water monitoring state, which opens a new idea in early-warn monitoring of blue algae and metal controlling.