Cadmium and zinc interaction and phytoremediation potential of seven Salix caprea clones
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
We evaluated the interaction between Cd and Zn in the bioaccumulation of seven clones of Salix caprea, which were exposed both to Cd and Zn alone and to a combination of Cd and Zn. Cadmium (Cd) and Zn concentration in the four treatments were administered in the following order: root > leaf > stem, and obvious differences were noted among the treatments and clones. The leaf Cd concentration of clone BH2 and stem Cd concentration of clone BH5 in the combined Cd and Zn treatment group was increased by 62% and 110%, respectively, relative of that of the Cd alone treatment group. On the other hand, the leaf and stem Zn concentration of clone BH8 in the combined Cd and Zn treatment group was reduced by 66% and 61%, respectively, relative to that of the Zn alone treatment group. Translocation of Cd and Zn from the root was higher in the leaf than in the stem, and the combined Cd and Zn treatment stimulated the translocation of Cd from the root to the leaf and stem, whereas it suppressed the translocation of Zn from the root to the leaf and stem. Therefore, the interaction effects were considered strongly synergistic with Cd in the presence of Zn, but proved antagonistic to Zn in the presence of Cd in the combined Cd and Zn treatment group. The phytoremediation potentials of the seven clones, which were estimated from standard indices of Cd and Zn concentration in Cd and Zn alone and the combined Cd and Zn treatment groups, were highest in clone BH3, and lowest in clone BH5. Therefore, we recognize S. caprea as an appropriate material for phytoremediation, and this is particularly the case with clone BH3. However,further research will be required to evaluate the effects of Cd and Zn on the physiological changes as well as tolerance mechanisms against metal toxicity in S. caprea clones.
Abstract
We evaluated the interaction between Cd and Zn in the bioaccumulation of seven clones of Salix caprea, which were exposed both to Cd and Zn alone and to a combination of Cd and Zn. Cadmium (Cd) and Zn concentration in the four treatments were administered in the following order: root > leaf > stem, and obvious differences were noted among the treatments and clones. The leaf Cd concentration of clone BH2 and stem Cd concentration of clone BH5 in the combined Cd and Zn treatment group was increased by 62% and 110%, respectively, relative of that of the Cd alone treatment group. On the other hand, the leaf and stem Zn concentration of clone BH8 in the combined Cd and Zn treatment group was reduced by 66% and 61%, respectively, relative to that of the Zn alone treatment group. Translocation of Cd and Zn from the root was higher in the leaf than in the stem, and the combined Cd and Zn treatment stimulated the translocation of Cd from the root to the leaf and stem, whereas it suppressed the translocation of Zn from the root to the leaf and stem. Therefore, the interaction effects were considered strongly synergistic with Cd in the presence of Zn, but proved antagonistic to Zn in the presence of Cd in the combined Cd and Zn treatment group. The phytoremediation potentials of the seven clones, which were estimated from standard indices of Cd and Zn concentration in Cd and Zn alone and the combined Cd and Zn treatment groups, were highest in clone BH3, and lowest in clone BH5. Therefore, we recognize S. caprea as an appropriate material for phytoremediation, and this is particularly the case with clone BH3. However,further research will be required to evaluate the effects of Cd and Zn on the physiological changes as well as tolerance mechanisms against metal toxicity in S. caprea clones.
참고문헌 (33)
- Adriano DC, "Trace Elements in the Terrestrial Environment", pp.106~149 (1986), Springer-Verlag
- Alloway BJ, "The accumulation of cadmium by vegetables grown on soils contaminated from a variety of sources", Sci Total Environ, 91, pp.223~236 (1990)
- Cakmak I, "Influence of varied zinc supply on retranslocation of cadmium (109Cd) and rubidium (86Rb) applied on mature leaf of durum wheat seedlings", Plant Soil, 219, pp.279~284 (2000)
- Das P, "Studies on cadmium toxicity in plants: a review", Environ Pollut, 98, pp.29~36 (1997)
- Dickinson NM, "Strategies for sustainable woodland on contaminated soils", Chemosphere, 41, pp.259~263 (2000)
- Dimitriou I, "Fate of heavy metals after application of sewage sludge and wood-ash mixtures to short-rotation willow coppice", Environ Pollut, 142, pp.160~169 (2006)
- Dudka S, "Effect of elevated concentrations of Cd and Zn in soil on spring wheat yield and the metal contents of the plants", Water Air Soil Pollut, 76, pp.33~341 (1994)
- Eriksson JE, "A field study on factors influencing Cd levels in soils and in grain of oat and winter wheat", Water Air Soil Pollut, 53, pp.69~81 (1990)
- Gomes DS, "Regulation of cadmium uptake by Saccharomyces cerevisiae", him Biophys Acta, 1573, pp.21~25 (2002)
- Han SH, "Use of pioneer tree species to restore heavy metal-contaminated forest soil", Proceedsoils ings IUFRO Conference on Forest Landscape Restoration, pp.220~221 (2007)
- Hart JJ, "Transport interactions between cadmium and zinc in roots of bread and durum wheat seedlings", Physiol Plant, 116, pp.73~78 (2002)
- Huebert DB, "The effect of EDTA on cadmium and zinc uptake and toxicity in Lemna trisulca L", Arch Environ Contam Toxicol, 22, pp.313~318 (1992)
- Keller C, "Root development and heavy metal phytoextraction efficiency: comparison of different plant species in the field", Plant Soil, 24, pp.6~81 (2003)
- Klang-Westin E, "Effects of nutrient supply and soil cadmium concentration on cadmium removal by willow", Biomass Bioenergy, 23, pp.415~426 (2002)
- Landberg T, "Interclonal variation of heavy metal interactions in Salix viminalis", Environ Toxicol Chem, 21, pp.2669~2674 (2002)
- Lewandowski I, "The economic value of the phytoremediation function: assessed by the example of cadmium remediation by willow (Salix ssp.)", Agric Syst, 89, pp.68~89 (2006)
- Lunácková L, "Response of fast growing woody plants from family Salicaceae to cadmium treatment", Bull Environ Contam Toxicol, 70, pp.576~585 (2003)
- Meers E, "Potential of five willow species (Salix spp.) for phytoextraction of heavy metals", Environ Exp Bot, 60, pp.57~68 (2007)
- Ministry of Environment, "Soil Monitoring Networks and Results of Soil Pollution Monitor in 2008" (2008), Ministry of Environment
- Moraghan JT, "Accumulation of cadmium and selected elements in flax seed grown on a calcareous soil", Plant Soil, 150, pp.61~68 (1993)
- Nan Z, "Cadmium and zinc interactions and their transfer in soil-crop system under actual field conditions", Sci Total Environ, 285, pp.187~195 (2002)
- Siedlecka A, "Some aspects of interactions between heavy metals and plant mineral nutrients", Acta Soc Bot Pol, 3, pp.265~272 (1995)
- Smilde KW, "The extraction by soil and absorption by plants of applied zinc and cadmium", Plant Soil, 143, pp.233~238 (1992)
- Tong YP, "Vacuolar compartmentalization: a second-generation approach to engineering plants for phytoremediation", Trends Plant Sci, 9, pp.7~9 (2004)
- Vandecasteele B, "Cadmium and zinc uptake by volunteer willow species and elder rooting in polluted dredged sediment disposal sites", Sci Total Environ, 299, pp.191~205 (2002)
- Vandecasteele B, "Foliar concentrations of volunteer willows growing on polluted sediment-derived sites versus sites with baseline contamination levels", J Environ Monit, 6, pp.313~321 (2004)
- Vandecasteele B, "Growth and trace metal accumulation of two Salix clones on sediment-derived soils with increasing contamination levels", Chemosphere, 58, pp.995~1002 (2005)
- Vervaeke P, "Fate of heavy metals during fixed bed downdraft gasification of willow wood harvested from contaminated sites", Biomass Bioenergy, 30, pp.58~65 (2006)
- White MC, "Zinc, cadmium, and manganese uptake by soybean from two zinc- and cadmium-amended coastal plain soils", Soil Sci Soc Am J, 44, pp.308~313 (1980)
- Wu FB, "Alleviation of cadmium-toxicity by application of zinc and ascorbic acid in barley", J Plant Nutr, 25, pp.2745~2761 (2002)
- Xu W, "Effects of insoluble Zn, Cd, and EDTA on the growth, activities of antioxidant enzymes and uptake of Zn and Cd in Vetiveria zizanioides", J Environ Sci (China), 21, pp.186~192 (2009)
- Xu WH, "Effects of zinc, cadmium and their combined pollution on nutrient uptake and Zn, Cd accumulation in ryegrass (Lofium perenne L.)", Asian J Ecotoxicol, 1, pp.70~74 (2006)
- Zhou Q, "Compound pollution of Cd and Zn and its ecological effect on rice plant", Chin J Appl Ecol, 5, pp.428~441 (1994)