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Protective Role of Kartolin-4 in Wheat Plants Exposed to Soil Draught

Protective Role of Kartolin-4 in Wheat Plants Exposed to Soil Draught Parameters of photosynthesis, heat-resistance, and osmotic pressure of cell exudate of leaves of the drought-sensitive cultivarLyutestsens 758 of wheat, Triticum aestivum, were studied under conditions of normal water supply, soil drought, and subsequent rehydration. The plants preliminarily treated with kartolin-4 were compared to untreated plants. Kartolin-4, a preparation with cytokinin-like activity, partially prevented the drought-induced inhibition of the photosynthetic assimilation of carbon dioxide and carboxylation activities of ribulose-1,5-bisphosphate carboxylase/oxygenase (EC 4.1.1.39), the key enzyme of carbon metabolism in plants. Upon subsequent rehydration, kartolin-4 stimulated the reparation reactions and facilitated the rapid recovery of normal photosynthetic activity. Kartolin-4 also increased the plant resistance to overheating and water deficiency. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Biochemistry and Microbiology Springer Journals

Protective Role of Kartolin-4 in Wheat Plants Exposed to Soil Draught

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References (4)

Publisher
Springer Journals
Copyright
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Medical Microbiology; Biochemistry, general; Microbiology
ISSN
0003-6838
eISSN
1608-3024
DOI
10.1023/A:1016243424428
Publisher site
See Article on Publisher Site

Abstract

Parameters of photosynthesis, heat-resistance, and osmotic pressure of cell exudate of leaves of the drought-sensitive cultivarLyutestsens 758 of wheat, Triticum aestivum, were studied under conditions of normal water supply, soil drought, and subsequent rehydration. The plants preliminarily treated with kartolin-4 were compared to untreated plants. Kartolin-4, a preparation with cytokinin-like activity, partially prevented the drought-induced inhibition of the photosynthetic assimilation of carbon dioxide and carboxylation activities of ribulose-1,5-bisphosphate carboxylase/oxygenase (EC 4.1.1.39), the key enzyme of carbon metabolism in plants. Upon subsequent rehydration, kartolin-4 stimulated the reparation reactions and facilitated the rapid recovery of normal photosynthetic activity. Kartolin-4 also increased the plant resistance to overheating and water deficiency.

Journal

Applied Biochemistry and Microbiology – Springer Journals

Published: Oct 10, 2004

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