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The influence of cold acclimation on antioxidative enzymes and antioxidants in sensitive and tolerant barley cultivars
journal contribution
posted on 2023-05-17, 01:14 authored by Dai, F, Huang, YZ, Meixue ZhouMeixue Zhou, Zhang, GPIn order to better understand the role of cold acclimation in alleviating freezing injury, two barley cultivars with different cold tolerance, i.e. a sensitive cv. Chumai 1 and a tolerant cv. Mo 103, were used. The freezing treatment increased leaf soluble protein content more in the tolerant cultivar than in the sensitive one. Cold acclimation increased H 2O 2 content of the two cultivars during freezing treatment, especially in Mo 103. Glutathione and ascorbate contents during freezing and recovery were significantly higher in cold-acclimated plants than in non-acclimated ones. Activities of peroxidase, ascorbate peroxidase and glutathione reductase were also higher in cold-acclimated plants than non-acclimated plants during freezing treatment. However, there was no significant difference between cold-acclimated plants and the control plants in catalase activity. It may be assumed that cold acclimation induced H 2O 2 production, which in turn enhanced activities of antioxidative enzymes and synthesis of antioxidants, resulting in alleviation of oxidative stress caused by freezing. © 2009 Springer Science+Business Media B.V.
History
Publication title
Biologia Plantarum: Journal for Experimental BotanyVolume
53Pagination
257-262ISSN
0006-3134Department/School
Tasmanian Institute of Agriculture (TIA)Publisher
Kluwer Academic PublPlace of publication
Van Godewijckstraat 30, Dordrecht, Netherlands, 33Repository Status
- Restricted