Veronica becabonga L. as a hyperaccumulatorplant for cadmium
DOI:
https://doi.org/10.15626/Eco-Tech.2005.050Keywords:
Cadmium; Hyperaccumulator; Metal accumulator; Metal uptake; Veronica becabonga L.; PhytoremediationAbstract
Heavy metal pollution of water is a major environmental problem facing the modem world.
The major objective of this research was to evaluate the potential of water-speedwell plant,
Veronica becabonga L. to uptake and accumulate heavy metal cadmium under greenhouse
conditions, Veronica becabonga L., were cultured in 3% Hoagland's nutrient medium, which
was supplemented with 0, 25, 50,100, 200, 300 mg/I of Cd(NO3)2 4H2O over one week
treatment period. Plants were harvested at the end of this period and heavy metals from the
entire shoot tissue was extracted using the closed Teflon vessel method and metal content in
the extract was estimated using a Flame atomic absorption spectrophotometry. The results
showed that the uptake and accumulation of Cd in V becabonga L. showed significant
increase when metal concentration was increased. The highest amount of Cd accumulation
was detected at 100mg/I Cd(NO3)24H2O in the culture solution that was 20660.3 mg/kg DW
of shoots. The linear pattern of uptake suggest the involvement of both active and passive
transport mechanisms for Cd uptake, Finally, since the high concentrations cadmium
accumulation in shoots of plants has far exceeded 0.01% DW V becabonga L. is a
hyperaccumulator plant for this metal and has potential for phytoremediation of water
contaminated with cadmium,
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References
Baker, A.J,M,, Reeves, R,D,, Hajar, A.S,M. 1994, Heavy metal accumulation and tolerance in British populations of the metallophyte Thlaspi caerulescens J. and Presl(Brassicaceae), New Phytol. 127, 61-68, https://doi.org/10.1111/j.1469-8137.1994.tb04259.x
Brooks, R.R. ( ed) 1998, Plants that hyperaccumulate Heavy metals:their role in phytoremediation, microbiology, archaeology, mineral exploration and phytomining, Wallingford, Oxon, UK, New York, CAB International.
Chaney, R,L,, Malik, M, Li, Y.M,, Brown, S,L,, Brewer, E,P., Angle J.S., Baker, A.J,M, 1997, Phytoremediation of soil metals. Curr. Opin. Biotech, 8, 279-284. https://doi.org/10.1016/S0958-1669(97)80004-3
Gleba, D,, Borisjuk, N.V., Borisjuk, L., Kneer, R., Poulev, A., Skarzhiskaya, M., Dushenkov, S., Logendra, S,, Gleba, Y., Raskin, I. 1999. Use of plant roots for phytoremediation and molecular farming. Proc. Nat. Acad. Sci, US. 96,5973-5977,
Hoagland, DK, Amon, D.I. 1938, The water culture method for growing plants without soil. Circular 347, 1-39.
Hubert, D.B. and Shay, M. 1993, The response of Lemna trisulca L, to cadmium,Environ. Pollut. 80, 247-253, https://doi.org/10.1016/0269-7491(93)90045-P
Jain, S.K., Vasudevan, P., Jha, N.K, 1989, Removal of some heavy metals from polluted water by aquatic plants: studies on duckweed and water velvet. Biol. Wastes 28, 15-126, https://doi.org/10.1016/0269-7483(89)90075-X
Lee, J., Reeves,. R.D,, Brooks, R.R,, Jaffre, T. 1977, Isolation and identification of citro-complex of nickel from nickel accumulating plants. Phytochem. 16, 1503-1505. https://core.ac.uk/download/pdf/39880623.pdf
Martin, I. and Bardos, P. (ed).1996, A review of full scale treatment technologies for the remediation of contaminated soil. Richmond, EPP Publications,
Mohan, B.S,, Hoseti, B.B. 1997. Potential phytotoxicity of lead and cadmiumto lemna minor grow in sewage stabilization ponds. Environ. pollut. 98(2), 233-238. https://doi.org/10.1016/S0269-7491(97)00125-5
Muramoto, S., and Oki,, Y, 1983. Removal of some heavy metals frome polluted water by water hyacinth (Eichhornia crrassips). Bull. Environ. Contam, Toxial. 30, 170-177, https://doi.org/10.1007/BF01610117
Raskin, I., Kumar, P.B.A.N., Dushenkov, S., and salt, D. 1994, Bioconcentration of heavy metalsby plants. Curr, Opis, Biotechnol. 28, 115-126,
Salt, D.E., Prince, R.C,, Pickering, LJ, and Raskin, I. 1995. Mechanisms of cadmium mobility and accumulation in Indian mustard, Plant Physiol. 109, 427-433, https://doi.org/10.1104/pp.109.4.1427
Sen, A.Kand Mondal, N,G. 1987. Salvinia natans-as the scavenger of Hg (II) Water Air and Soil pollut. 34, 439-446. https://doi.org/10.1007/BF00282744
Senden, M,H.M.N., Van Paassen, F.J.M., Van der Meer, A.J.G.M, and Wolterbeek, H. 1990. Cadmium-citric acid-xylem cell wall interactions in tomato plants. Plant Cell and Environ. 15, 71-79. https://doi.org/10.1111/j.1365-3040.1992.tb01459.x
Topper, K. and Kotuby-Amacher, J, 1990, Evaluation of a closed vessel acid digestion method for plants analyses using inductively coupled plasma spectrometry. Commun. Soil Sci. Plant Anal. 21, 1437-1455, https://doi.org/10.1080/00103629009368315
Zaranyika, M,F, and Ndapwarda, T.1995. Uptake of Ni, Zn, Fe, Co, Cr, Pb, Cu and Cd by water hyacinth (Eichhornia crrassips) in Mukuvisi and rivers, Zimbawe. J Environ. Sci. Health, A30(1), 157-169. https://doi.org/10.1080/10934529509376193
Zayed, A.M., Gowthaman, S., aqnd Terry, N. 1999. Phytoaccumulation of tree elements by wetland plants, L Ducckweed. J Environ. Qual. 27, 715-721. https://doi.org/10.2134/jeq1998.00472425002700030032x
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