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Effect of Toxic Metals on the Multiple Forms of Esterases of Triticum aestivum cv. Vergina

Effect of Toxic Metals on the Multiple Forms of Esterases of Triticum aestivum cv. Vergina The influence of increasing concentrations of copper, zinc, lead, nickel, chromium and cadmium on 14 day‐old seedlings of Triticum aestivum cv. Vergina was studied. Plants were grown in 1/10 strength Rorison's nutrient solution plus increasing concentrations of each one of the toxic metals separately. Metal toxicity depressed shoot growth but the most evident symptoms were on roots. The effects of toxic metals on the isoesterases of Triticum aestivum cv. Vergina shoots were classified into three types, depending on the increase or decrease of the number and density of esterase bands compared to the control: 1. Decreased number and density of bands caused by 20 ppm Cd, 8 ppm Ni and 60 ppm Zn. 2. Constant number of bands but decreased intensities caused by 2 ppm Cu and 40 ppm Pb. 3. Constant number of bands but increased intensities caused by 20 ppm Cr. These effects demonstrate the diverse modes of metal action resulting in different degrees of toxicity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Agronomy and Crop Science Wiley

Effect of Toxic Metals on the Multiple Forms of Esterases of Triticum aestivum cv. Vergina

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References (37)

Publisher
Wiley
Copyright
Copyright © 1988 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0931-2250
eISSN
1439-037X
DOI
10.1111/j.1439-037X.1988.tb00303.x
Publisher site
See Article on Publisher Site

Abstract

The influence of increasing concentrations of copper, zinc, lead, nickel, chromium and cadmium on 14 day‐old seedlings of Triticum aestivum cv. Vergina was studied. Plants were grown in 1/10 strength Rorison's nutrient solution plus increasing concentrations of each one of the toxic metals separately. Metal toxicity depressed shoot growth but the most evident symptoms were on roots. The effects of toxic metals on the isoesterases of Triticum aestivum cv. Vergina shoots were classified into three types, depending on the increase or decrease of the number and density of esterase bands compared to the control: 1. Decreased number and density of bands caused by 20 ppm Cd, 8 ppm Ni and 60 ppm Zn. 2. Constant number of bands but decreased intensities caused by 2 ppm Cu and 40 ppm Pb. 3. Constant number of bands but increased intensities caused by 20 ppm Cr. These effects demonstrate the diverse modes of metal action resulting in different degrees of toxicity.

Journal

Journal of Agronomy and Crop ScienceWiley

Published: Feb 1, 1988

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