Contribution of Oxidative Stress to the Development of Cold-Induced Damage to Leaves of Chilling-Sensitive Plants: 1. Reactive Oxygen Species Formation during Plant Chilling

Contribution of Oxidative Stress to the Development of Cold-Induced Damage to Leaves of... Changes in the levels of superoxide anion radical and total peroxides were studied immediately after the chilling of 7–11-day-old seedlings of maize (Zea mays L.), cucumber (Cucumis sativus L.), millet (Panicum miliaceum L.), and etiolated potato (Solanum tuberosum L.) shoots at 2°C for 1–24 h and one day after 24-h chilling. A short-term (1 h) chilling of chilling-sensitive plants resulted in the 2.4–7.5-fold acceleration of the O– 2 generation. A longer chilling period reduced somewhat the rate of O– 2 generation, but this rate did not achieve the control level. The highest level of H2O2 was observed after 2-h chilling with its subsequent lowering. In the cold-tolerant potato, the levels of O– 2 and peroxides reduced after chilling. The rate of lipid peroxidation (an index characterizing cold-induced membrane damage) increased gradually with the lengthening of the chilling period. Reactive oxygen species are supposed to be involved in the induction of the oxidative stress during chilling of chilling-sensitive plants and in the triggering of cold-induced damage. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Contribution of Oxidative Stress to the Development of Cold-Induced Damage to Leaves of Chilling-Sensitive Plants: 1. Reactive Oxygen Species Formation during Plant Chilling

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Publisher
Springer Journals
Copyright
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1023/A:1020232700648
Publisher site
See Article on Publisher Site

Abstract

Changes in the levels of superoxide anion radical and total peroxides were studied immediately after the chilling of 7–11-day-old seedlings of maize (Zea mays L.), cucumber (Cucumis sativus L.), millet (Panicum miliaceum L.), and etiolated potato (Solanum tuberosum L.) shoots at 2°C for 1–24 h and one day after 24-h chilling. A short-term (1 h) chilling of chilling-sensitive plants resulted in the 2.4–7.5-fold acceleration of the O– 2 generation. A longer chilling period reduced somewhat the rate of O– 2 generation, but this rate did not achieve the control level. The highest level of H2O2 was observed after 2-h chilling with its subsequent lowering. In the cold-tolerant potato, the levels of O– 2 and peroxides reduced after chilling. The rate of lipid peroxidation (an index characterizing cold-induced membrane damage) increased gradually with the lengthening of the chilling period. Reactive oxygen species are supposed to be involved in the induction of the oxidative stress during chilling of chilling-sensitive plants and in the triggering of cold-induced damage.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: Oct 13, 2004

References

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