Influences of Lead Contamination and Complexing Agents on the Metal Uptake of Cucumber

✍ Scribed by G. Zaray; D.D.T. Phuong; I. Varga; A. Varga; T. Kantor; E. Cseh; F. Fodor

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 347 KB
• Volume: 51
• Category: Article
• ISSN: 0026-265X
• DOI: 10.1006/mchj.1995.1027

✦ Synopsis

Cucumber plants were grown in six different nutrient solutions with varying compounds of iron ( (\mathrm{FeCl}_{3}), (\mathrm{Fe})-citrate, or (\mathrm{Fe}-\mathrm{EDTA}) ) with and without addition of lead. The concentrations of (\mathrm{B}, \mathrm{Ca}, \mathrm{Cu}, \mathrm{Fe}, \mathrm{Mg} . \mathrm{Mn}, \mathrm{Ni}, \mathrm{Pb}), and (\mathrm{Zn}) in the third leaves of the plants were determined by inductively coupled plasma-atomic emission spectrometry after microwaveassisted acidic digestion of the dried samples. In the presence of EDTA lead contamination results in growth stimulation and considerably higher uptake of (\mathrm{Cu}) and Ni. However, addition of lead to the nutrient solutions containing citrate or chloride leads to a significant reduction of growth and a higher uptake of (\mathrm{Ca}, \mathrm{Mg}, \mathrm{Zn}), and (\mathrm{Ni}). The magnitude of lead effect is definitely stronger in presence of citrate. 1995 Academic Press. Inc.