Rafia Azmat
Department of Chemistry, University of Karachi, Pakistan
Aliya Hayat
Department of Microbiology, University of Karachi, Pakistan
Tanveer Khanum
Department of Zoology, University of Karachi, Pakistan
Rukhsana Talat
Department of Zoology, University of Karachi, Pakistan
Fahim Uddin
Department of Chemistry, University of Karachi, Pakistan
ABSTRACT
Cd toxicity and problems with regards to tolerance, physiological processes and ecological significance with green seaweeds has been examined in this study. Seaweed Codium iyengarii belongs to chlorophyta which contains highest amount of essential mineral ions [Ca, Fe, K, Na and Mg] collected from Bullijee coastal area of Karachi coast, to control the toxicity of Cd metal in bean plant. Nutritive value and essential ions were determined by visible spectrophotometer, flame photometer and atomic absorption techniques. Microbial counts were determined by standard method. Results indicated that the biosorption of Cd by green seaweed Codium iyengarii was observed. Healthy growth of the plants were recorded up to 100 ppm of Cd concentration which improves in up taking of mineral ions from the soil into the roots and shoots of bean plant. It was observed that seaweed acts as a catalyst starter in soil irrigated with contaminated water. This water contains high percentages of heavy toxic metals that were toxic to the plant and harmful for its nutritive value. Codium iyengarii improves the morphology and physiological processes of plants also. Seaweeds help in the population of soil bacteria in heavy metal contaminated environment.
PDF References
How to cite this article
Rafia Azmat, Aliya Hayat, Tanveer Khanum, Rukhsana Talat and Fahim Uddin, 2006. Effect of Micronutrients of Codium iyengarii on Metal Toxicity in Bean Plants. Journal of Biological Sciences, 6: 173-177.
DOI: 10.3923/jbs.2006.173.177
URL: https://scialert.net/abstract/?doi=jbs.2006.173.177
DOI: 10.3923/jbs.2006.173.177
URL: https://scialert.net/abstract/?doi=jbs.2006.173.177
REFERENCES
- Peraza, M.A., F. Ayala-Fierro, D.S. Barber, E. Casarez and L.T. Rael, 1998. Effects of micronutrients on metal toxicity. Environ. Health Perspect., 10: 203-216.
Direct Link - Wallace, M.A., S.L. Adverval, C.A. Henriques and A.C.A. Costa, 2003. An evaluation of copper biosorption by a brown seaweed optimized conditions. Electronic J. Biotechnol., 6: 1-8.
Direct Link - Keskinan, O., M.Z.L. Goksu, A. Yuceer, M. Basibuyuk and C.F. Forster, 2003. Heavy metal adsorption characteristics of a submerged aquatic plant. Process Biochemistry, 39: 179-183.
Direct Link - Huang, C. and C.P. Huang, 1996. Application of Aspergillus oryzae and Rhizopus oryzaefor Cu (II) removal. Water Res., 9: 1985-1990.
CrossRef - Fourest, E. and J.C. Roux, 1992. Heavy metal biosorption by fungal mycelial by-products: Mechanisms and influence of pH. Applied Microbiol. Biotechnol., 37: 399-403.
CrossRefDirect Link - Cost, A.C.A. and F.P. Franca, 1996. Cadmium uptake by biosorbent Seaweeds adsorption isotherm and some process conditions. Separation Sci. Technol., 31: 2373-2393.
Direct Link - Veglio, F. and F. Beolchini, 1997. Removal of metals by biosorption: A review. Hydrometallurgy, 44: 301-316.
CrossRefDirect Link