|تعداد مشاهده مقاله||7,632,847|
|تعداد دریافت فایل اصل مقاله||5,853,953|
Seedling response of three Eucalyptus species to copper and zinc toxic concentrations
|Caspian Journal of Environmental Sciences|
|مقاله 2، دوره 6، شماره 2، تیر 2008، صفحه 97-103 اصل مقاله (182.19 K)|
|M.H. Assareh1؛ A. Shariat2؛ A. Ghamari-Zare2|
|1Research Institute of Forests and Rangelands, P.O.Box 13185-116, Tehran, Iran. * Corresponding author's E-mail: firstname.lastname@example.org|
|2Research Institute of Forests and Rangelands, P.O.Box 13185-116, Tehran, Iran.|
|Human activities have continuously increased the level of heavy metal ions circulating in the environment. It is important to understand the tolerance of plant species to high concentrations of heavy metals. Very little is known on the response of Eucalyptus species to Zn and Cu toxic concentrations Eucalyptus camaldulensis, E. microtheca, and E. occidentalis seeds were grown in silt and irrigated by nutrient solution. Forty two days old seedlings were exposed to ten Zn and Cu treatments for ten months. The tolerance order of the species to toxic concentrations of Cu was Eucalyptus camaldulensis> E. occidentalis> E. microtheca and the tolerance order of the species to toxic concentrations of Zn was E. occidentalis> E. microtheca> E. camaldulensis. Tissue concentration increased as Zn and Cu concentration increased for the species. Root tissue concentrations regards to Zn and Cu concentrations were higher than shoot tissue concentration at all solution. These results provided the first quantified metals in Eucalyptus species and the second explored relationships between concentrations of metals in nutrient solution and plant organs.|
Abo-Hassan, A., Kandeel, S.A. and Kherallah, I.E. (1988) New eucalyt species introduction in the Saudi Arabia central zone. In: Proceedings of the international forestry conference, Australian Bicentenary, vol.5. Australian Forest Development Institute. Alburry, Australia. pp. 1-16.
Aten, C.F. and Gupta, S.K. (1996) On heavy metals in soil: rationalization of extraction by dilute salt solutions, comparison of the extracted concentration with uptake by ryegrass and lettuce, and the possible influence of pyrophosphate on plant uptake. Sci. Total Environ. 178, 45-53.
Baker, A.J.M., Reeves, R.D. and Hajar, A.S.M. (1994) Heavy metal accumulation and tolerance in British populations of the metallophyte Thlaspi caerulescens J. & C. Presl (Brassicaceae). New Phytol. 127, 61–68.
Basta, N. and Gradwohl, R. (2000) Estimation of Cd, Pb and Zn bioavalibility in smelter contaminated soils by a sequential extraction procedure. J Soil Contam. 9, 149- 164.
Bettiol, W. and Camargo, O.A. (2000) Impacto ambiental do uso agricola do lodo de esgoto. Jagauriuna. EMBRAPA.
Carrillo-Gonzalez, R. and Gonzalez-Chavez, M.C.A. (2006) Metal accumulation in wild plants surrinding mining wastes, Environmental Pollution. 144, 84-92.
Djavanchir, K. and Mossadegh, A. (1973) Eucalyptus. Tehran University Press. 435 p.
Freitas, H.M., Prasad, M.N.V. and Pratas, J. (2004) Plant community tolerance to trace elements growing on the degraded soil of Sao Domingos mine in the south east of Portugal: environmental implications. Environ. Int. 30, 65-72.
Gichner, T., Patkova, Z., Szakova, J. and Demnerova, K. (2006) Toxicity and DNA damage in tobacco and potato plants growing on soil polluted with heavy metals. Ecotoxicology and Environmental safety. 65, 420-426.
Golovatyi, S.Y. (2002). Heavy metals in agroecosystems. Minsk, Russia. pp. 92-119.
Grytsyuk, N., Arapis, G., Perepelyatnikova, L, Ivanova, T. and Vynogradska, V. (2006) Heavy metals effects on forage crops yields and estimation of elements accumulation in plants as affected by soil. Science of the Total Environment. 354, 224-231.
Heidari Sharif Abad, H. (1994) Variation in the sensivity of nodulation and nitrogen fixation to nitrate in annual Medicago species. A thesis for the degree of doctor of philosophy. Waite Agricultural Research Institute, Glen Osmond, South Australia.
Keller, A., Abbaspour, K.C. and Schulin, R. (2002) Assessment of uncertainty and risk in modeling regional heavy-metal accumulation in agricultural soils. Enviro Qual. 31, 175-187.
Lukin, S.V. Soldat, I.Y. and Pendjurin, Y.V. (2001) Regulatities of zinc accumulation in agricultural crops. Agrochimija. 4, 46-49.
Lukin, S.V., Javtushenko, V.Y. and Soldat, I.Y. (2000) Cadmium accumulation in agricultural crops in dependence on the level of soil contamination. Agrochimija. 2, 73-77.
Pulford, I.D. and Watson, C. (2003) Phytoremediation of heavy metal-contaminated land by trees- a review. Environ. Int. 29, 529-540.
Riddle-Black, D. (1994) Heavy metal uptake by fast growing willow species. In: Aronsson, P., Perttu, K. (Eds.). Willow vegetation filters for municipal wastewaters and sediments: A biological purifycation system. Proceeding of a study tour, Conference and workshop in Sweden. Swedish University of Agricultural Science, Section of short rotation Forestry, Rapport 50, June 5-10, pp.133-144.
Sereno, M.L. (2004) Avaliacao da tolerancia Assareh et al., 103 de Cana-de-acucar (Saccharum spp.) a metais. Expressao dos genes de metalotioneina. Teses. Universidade de Sao PauloEscola Superior de Agricultura "Luiz de Queiroz". 94 p.
Shallari, S., Schwartz, C., Hasko, A. and Morel, J.L. (1998) Heavy metals in soils and plants of serpentine and industrial sites of Albania. Sci. Total Environ. 209, 133-142.
Shen, Z.G. and Liu, Y.L. (1998) progress in the study on the plants that hyperaccumulate heavy metal. Plant Physiol Commun. 34, 133-139.
Westerma, R.E.L. (1990) Soil testing and plant analysis., SSSA. Madison wisconsin, USA.
WHO (World Health Organization), (2001) Copper. Environmental health criteiavol. 200. Geneva: International Programme on Chemical Safety.
Yanqun, Z., Yuan, L., Schvartz, C., Langlade, L.and Fan, L. (2004) Accumulation of Pb, Cd, Cu and Zn in plants and hyperaccumulator choice in lanping lead-zinc mine area. china, Environment International. 30, 567-576.
|Heavy metals؛ Eucalyptus camaldulensis؛ E. microtheca؛ E. occidentalis؛ Toxic concentration|
تعداد مشاهده مقاله: 1,916
تعداد دریافت فایل اصل مقاله: 1,611