海水淡化浓排水中铜对2种海洋微藻的影响

研究了海水淡化浓排水中的金属铜对2种海洋微藻塔玛亚历山大藻和海洋原甲藻的影响。配制一系列含不同含量Cu2+的海水培养了2种海洋微藻,统计海藻生长过程中的藻细胞数量变化,做出不同Cu2+含量下海藻的生长曲线,了解Cu2+对海藻生长的影响;利用生物显微镜观察海洋微藻在不同Cu2+含量环境中的生存状况及细胞形态变化。结果表明,Cu2+含量的升高会一定程度上限制塔玛亚历山大藻的生长、繁殖和游动能力,而对细胞形态的变化影响较小;Cu2+的加入会对海洋原甲藻的细胞形态产生较大影响,但是随着培养时间的延续,则会对海藻的生长和繁殖起到一定的促进作用。

IMPACTS OF COPPER ON TWO TYPES OF MARINE MICROALGAE

The impacts of excessive heavy metals in brine on Prorocentrum micans and Alexandrium tamarense were investigated.In this study,a series of solutions with different Cu2+ concentrations were prepared to observe the influence of Cu2+ on two types of microalgae,Prorocentrum micans and Alexandrium tamarense.Statistics algal cell number change during algae growth process,making the algae growth curve under different Cu2+ content,using bio-microscope to observe survival situation and cell shape changes of marine microalgae under different of Cu2+ content environmental.It was concluded that copper had certain influence on the growth,reproductive and swimming ability of Prorocentrum micans,while it almost had no impacts on the cell morphology.However,addition of copper would do damage to the cell morphology of Alexandrium tamarense.Adding Cu2+ had a greater impact on marine Prorocentrum micans cell morphology.But as time went on,copper had positive impacts on the growth and reproductive ability of Alexandrium tamarense.