INFLUENCE OF ROOT TEMPERATURE ON PHYTOACCUMULATION OF As, Ag, Cr, AND Sb IN POTATO PLANTS (SOLANUM TUBEROSUML. VAR. SPUNTA)
- 31 July 2001
- journal article
- Published by Taylor & Francis Ltd in Journal of Environmental Science and Health, Part A
- Vol. 36 (7), 1389-1401
- https://doi.org/10.1081/ese-100104886
Abstract
Three consecutive years of field experiments were carried out to investigate the effect of root temperatures induced by the application of mulches for phytoextraction of As, Ag, Cr and Sb using potato plants (roots, tubers, stems and leaflets). Four different plastic covers were used (T1: transparent polyethylene; T2: white polyethylene; T3: white and black coextruded polyethylene; and T4: black polyethylene), taking uncovered plants as control (T0). The different treatments had a significant effect on mean root temperatures (T0 = 16°C, T1 = 20°C, T2 = 23°C, T3 = 27°C and T4 = 30°C) and induced a significantly different response in the As, Ag, Cr and Sb phytoaccumulation. The T3 treatment gave rise to the greatest phytoaccumulation of As, Ag, Cr and Sb in the roots, leaflets and tubers. In terms of the relative distribution of the phytoaccumulated metals (with respect to the total of the plant), As accumulated mainly in the roots and leaflets whereas Ag, Cr and Sb accumulated primarily in the tubers, establishing a close relationship between biomass development of each organ and phytoaccumulation capacity of elements in response to temperature in the root zone. With regard to phytoremediation using the potato plant, it is necessary to ascertain the influence and include the control of the thermal regime of the soil to optimize the phytoextraction of pollutants.Keywords
This publication has 19 references indexed in Scilit:
- PHYTOREMEDIATIONAnnual Review of Plant Physiology and Plant Molecular Biology, 1998
- Trace element toxicity relationships to crop production and livestock and human health: implications for managementCommunications in Soil Science and Plant Analysis, 1998
- Root Zone Temperature and Calcium Effects on Phosphorus, Sulfur, and Micronutrients in Winter Wheat ForageAgronomy Journal, 1997
- Phytoremediation of Lead-Contaminated Soils: Role of Synthetic Chelates in Lead PhytoextractionEnvironmental Science & Technology, 1997
- Growth and phosphorus, zinc, and manganese content of tomato, muskmelon, and honey locust at high root‐zone temperatures1Journal of Plant Nutrition, 1996
- Dry‐matter production, mineral nutrient concentrations, and nutrient distribution and redistribution in irrigated spring wheatJournal of Plant Nutrition, 1994
- Root to shoot translocation of macronutrients in relation to shoot demand in maize (Zea mays L.) grown at different root zone temperaturesJournal of Plant Nutrition and Soil Science, 1992
- The effect of root zone temperature on nutrient uptake of tomatoJournal of Plant Nutrition, 1990
- Biophysics of the Inhibition of the Growth of Maize Roots by Lowered TemperaturePlant Physiology, 1990
- Temperature Dependence of the Concentration Kinetics of Absorption of Phosphate and Potassium in Corn RootsPlant Physiology, 1981