Regulation of Phospholipase D Activity by Light and Phytohormones in Oat Seedlings

Regulation of Phospholipase D Activity by Light and Phytohormones in Oat Seedlings The effect of synthetic analogs of phytohormones and red light absorbed by phytochrome on the phospholipase D activity (PLD) was studied in oat (Avena sativa L.) seedlings. ABA manifested a short-term stimulating effect on PLD activity in the green seedlings and inhibited phospholipase activity in the etiolated plants. Kinetin inhibited enzyme activity in the etiolated seedlings and did not affect its activity in light. GA did not markedly affect PLD activity in the etiolated plants and activated this enzyme in the green seedlings. Finally, IAA did not affect the enzyme activity. The relationship of the regulatory effects of phytohormones and light on PLD activity is discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Regulation of Phospholipase D Activity by Light and Phytohormones in Oat Seedlings

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/B:RUPP.0000047825.98450.94
Publisher site
See Article on Publisher Site

Abstract

The effect of synthetic analogs of phytohormones and red light absorbed by phytochrome on the phospholipase D activity (PLD) was studied in oat (Avena sativa L.) seedlings. ABA manifested a short-term stimulating effect on PLD activity in the green seedlings and inhibited phospholipase activity in the etiolated plants. Kinetin inhibited enzyme activity in the etiolated seedlings and did not affect its activity in light. GA did not markedly affect PLD activity in the etiolated plants and activated this enzyme in the green seedlings. Finally, IAA did not affect the enzyme activity. The relationship of the regulatory effects of phytohormones and light on PLD activity is discussed.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Dec 23, 2004

References

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