Dry matter content and lead structure in young wheat plants as affected by cadmium, lead, and nickel
1999
Kovacevic, G. | Kastori, R. | Merkulov, L.J. (University of Novi Sad (Yugoslavia))
The effects of 1 mM Cd, Pb and Ni on dry mass, Cd, Pb, and Ni contents, and changes in leaf structure in young wheat plants were studied. In leaves, Cd content was highest, followed by Pb and Ni, in roots Cd content was also highest, but followed by Ni and Pb. Roots accumulated considerably larger amounts of the three heavy metals than leaves. Largest reductions of leaf and root mass were obtained with Cd. Pb and Ni effects were almost equal. Ni excess had a strong negative effect on mesophyll thickness, while Cd mostly reduced the number and size of vascular bundles and vessel diameter. High Pb reduced the diameter of vessels causing their different deformations.
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