摘要
从污水中分离到一种螺旋藻新品系,并筛选到适合的培养基。藻体长1750μm,在适宜的条件下,藻体活跃地摆动和转动。其生活环境水质呈弱酸性和中性,盐度低,温度变化范围5～34℃,氮(N)、磷(P)浓度分别为4.53～4.96mg/L和0.39～0.48mg/L,达到超富营养化水平;培养试验表明,这种螺旋藻只适应在弱光下生长,与一般螺旋藻喜高温、高光、耐碱耐盐的特性显著不同。NH+4有利于这种螺旋藻的生长,是一种适合于在污水中生长的螺旋藻,有可能在水质净化方面得到应用。
A new strain of Spirulina sp. was separated from sewage, and the suitable medium was selected. This Spirulina sp. was as long as 1750 μm, it waves and rotates actively under optimal living conditions. The water in which this Spirulina sp. lived was slightly acid or hypereutrophic, the salinity was low,and the temperature was 5~34℃,the concentration of total nitrogen and total phosphate were 4.53~4.96 mg/L and 0.39~0.48 mg/L respectively. Culture experiments revealed it grew only under low light intensity, which is quite different from the Spirulina's common characteristics of adaptation to high light intensity, high temperature, high salinity and high alkaline. NH^+_4 is helpful for this Spirulina sp. to grow. The Spirulina sp. adapted well to sewage, thus it may be applied in purification of sewage.
出处
《武汉植物学研究》
CSCD
2004年第4期329-333,共5页
Journal of Wuhan Botanical Research
基金
中国科学院知识创新工程所长基金资助项目(04035116)
湖北省科技攻关资助项目(2002AA306B03)。
关键词
螺旋藻
分离培养
污水
Spirulina sp.
Separation and cultivation
Sewage
