Evaluation of bio-chemical productivity in cyanobacterium Spirulina platensis-S5 under heavy metal stress

被引:0
|
作者
Jetley, UK [1 ]
Choudhary, M [1 ]
Fatma, T [1 ]
机构
[1] Jamia Millia Islamia, Dept Biosci, New Delhi 110025, India
关键词
heavy metals; concentration-gradient; phytotoxicity; metal chelation; Spirulina platensis;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Effect of heavy metals, namely, lead, chromium, copper and zinc was studied on chlorophyll, carotenoid, phycobiliprotein, carbohydrate and protein contents of Spirulina platensis. All the heavy metals tested showed acute toxicity over a,sub-lethal concentration gradient of 0.05-0.20 mg/L with respect to chlorophyll, carotenoid and phycobiliprotein contents, the order of toxicity being Cr > Pb > Cu > Zn. Carbohydrates and proteins, however, posed resistance to heavy metal toxicity suggesting their role in metal chelation.
引用
收藏
页码:1524 / 1528
页数:5
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