Bioaccumulation and physiological changes in hydrilla verticillata (l.f.) Royle in response to mercury
- National Botanical Research Institute, Lucknow (India)
There has been a growing awareness in recent years about the utility of biological methods in tackling the problem of industrial pollution. These methods are both easy and cost effective. In this connection the role of aquatic plants, because of their ability to absorb pollutants, has been recognized worldwide in the treatment of waste water. Mercury is one of the most toxic substances in the aquatic environment. Effluents discharged from the industries (chloralkali, paper & pulp, plastic, pesticide etc.) pollute water bodies directly or through seepage. Since most of the water bodies in the country are used for the cultivation of aquatic eatables, the entry of mercury into food chain can not be ruled out. This paper reports on studies carried out to evaluate the ability of Hydrilla verticillata to accumulate mercury and its toxicity in relation to chlorophyll, protein, in vivo nitrate reductase activity and cysteine content. A study of the effects of Hg on nitrogen, phosphorus, and potassium levels in Hydrilla verticillata was also made.
- OSTI ID:
- 223894
- Journal Information:
- Bulletin of Environmental Contamination and Toxicology, Vol. 56, Issue 2; Other Information: PBD: Feb 1996
- Country of Publication:
- United States
- Language:
- English
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