Protective Role of Thidiazuron Treatment on Cucumber Seedlings Exposed to Heavy Metals and Chilling

Protective Role of Thidiazuron Treatment on Cucumber Seedlings Exposed to Heavy Metals and Chilling The action of thidiazuron, a synthetic growth regulator, was studied on 7-day-old cucumber seedlings (Cucumis sativus L., cv. Monastyrskii) exposed to chilling and sublethal concentrations of lead and copper ions. The extent of injury was assessed from the electrolyte leakage from cotyledonary leaves into distilled water. Separate application of each stress factor induced an increase in membrane permeability; however, their combined application caused a weaker response. A preliminary treatment of seedlings with thidiazuron fully or partly prevented the stress-induced stimulation of electrolyte leakage from cotyledon segments. It is concluded that thidiazuron elevates plant resistance to adverse environments. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Protective Role of Thidiazuron Treatment on Cucumber Seedlings Exposed to Heavy Metals and Chilling

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2003 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/A:1023857817284
Publisher site
See Article on Publisher Site

Abstract

The action of thidiazuron, a synthetic growth regulator, was studied on 7-day-old cucumber seedlings (Cucumis sativus L., cv. Monastyrskii) exposed to chilling and sublethal concentrations of lead and copper ions. The extent of injury was assessed from the electrolyte leakage from cotyledonary leaves into distilled water. Separate application of each stress factor induced an increase in membrane permeability; however, their combined application caused a weaker response. A preliminary treatment of seedlings with thidiazuron fully or partly prevented the stress-induced stimulation of electrolyte leakage from cotyledon segments. It is concluded that thidiazuron elevates plant resistance to adverse environments.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Oct 17, 2004

References

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