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Induction of Transfer Cells in XYLEM of Zinnia Elegans Treated with Cadmium

Published online by Cambridge University Press:  02 July 2020

C. C. Chen
Affiliation:
Department of Botany, National Taiwan University, Taipei, Taiwan
W. T. Chen
Affiliation:
Department of Botany, National Taiwan University, Taipei, Taiwan
S. Y. Wang
Affiliation:
Department of Botany, National Taiwan University, Taipei, Taiwan
Y. R. Chen
Affiliation:
Department of Botany, National Taiwan University, Taipei, Taiwan
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Extract

Cadmium and zinc are transition elements belonging to group II B in periodical table and they share similar chemical properties. However, their morphological and physiological effects on plants are quite difference. Cadmium not only consequences changes of plant structure at the light and electron microscopic levels, but also results in the induction of phytochelatin synthesis. In the present studies, The distribution of cadmium in different parts of plants was measured and its effects on plant structure were also examined.

Three to six-week-old Zinnia elegans were grown Hoagland's solution containing different concentrations of cadmium from one to two weeks. Atomic absorption spectroscopic studies showed that the distribution of cadmium was mainly in root. The accumulation of cadmium in stems was higher than that of in leaves. In leaves, the ability of cadmium accumulation in young leaves was much higher than that of old leaves.

Type
Light and Electron Microscopic Techniques for the Study of Plant Pathogenic Fungi and Their Interactions with Host Plants
Copyright
Copyright © Microscopy Society of America

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References

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