ARSENIC AND COPPER UPTAKE BY CABBAGES GROWN ON POLLUTED SOILS
PDF

Keywords

soil pollution
metal uptake and accummulation

Abstract

Cabbages (Brassica Juncea (L.) Czern) were grown in pot experiments on typical unpolluted and polluted soils with concentration changing from 20.50 - 50.00 mg As/kg and 156.00 - 413.00 mg Cu/kg dry soil. The results demonstrate the elevation of As and Cu in soil may lead to increased uptake by these cabbages subsequent entry into human food chain. It was found 11.84- 32.12 mg As/kg and 46.86 - 94.47 mg Cu/kg dry leaves. It has tendency increase uptake and accumulation of Cu in cabbage tissue with increasing cultivated time, whereas, it was found accumulation of As in cabbages tissue decreased with time prolonging. The quantity of As and Cu in these cabbages, were significant higher than 0.2 mg As/kg and 5.0 mg Cu/kg fresh vegetable, the permissible limit concentration in fresh vegetable. This indicated that human may As and Cu exposure occur through eating these vegetables.

 

 

https://doi.org/10.29037/ajstd.239
PDF

References

Alloway, B.J., ed. (1990), Heavy metals in soils. Glagow: Blackie.

Clijster, H. and Van Assche, F. (1985), Inhibition of photosynthesis by heavy metals. Photosynth Res, 7, pp. 31-40.

Eija Patsikka, Eva-Mari Aro, and Esa Tyystjarvi (1998), Increase in the quantum yield of photo inhibition contributes to copper toxicity in Vivo. J. Plant Physiol, 117, pp. 619-627.

Grill, E., Winnacker, E.-L., and Zenk, M.H. (1985), Phytochelatins: the principal heavy metal complexing peptides of higher plants.J. Science, Vol. 230, pp. 674-676.

Grill, E., Winnacker, E.-L., and Zenk, M.H. (1987), Phytochelatins, a class of heavy metal binding peptides from plants, are functional analous to metallothioneins. Proc Natl Acad Sci USA, Vol. 84, pp. 439-443.

Kataba Pendias, A. and Pendias, H. (1992), Trace elements in soils and plants. CRC Press, Boca Raton, USA.

Li-Men Chen and Ching-Huei Kao (1999), Effect of excess copper on rice leaves: evidence for involvement of lipid peroxidation. J. Bot. Bull Acad. Sin., Vol. 40, pp. 283-287.

Meharg, A.A. and Hartley-Whitaker, J. (2002), Arsenic uptake and metabolism in Arsenic resistant & non-resistant plant species. New Physol, 154, pp. 29-43.

Marcus, E.V. Schmoger, Matjaz Oven, and Erwin Grill (2000), Detoxification of Arsenic by phytochelatins in Plants. Plant Physiology, 122, pp. 793-801.

Sandmann, G. and Boger, P. (1980), Copper-mediated lipid peroxidation processes in photosynthetic membranes. Plant Physiol, 66, pp. 797-800

Uribe, E.G. and Stark, B. (1982), Inhibition of photosynthetic energy conversion by cupric ion. Evidence for Cu2+ coupling factor 1 interaction. Plant physiol, 69, pp. 1040-1045.

Zenk, M.H. (1996), Heavy metal detoxification in higher plants a review. Gene, Vol. 179, pp. 21-30.

Copyright (c) 2017 Nguyen Thi Kim Phuong, Nguyen Thi Dung

Downloads

Download data is not yet available.