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The influence of cold acclimation on antioxidative enzymes and antioxidants in sensitive and tolerant barley cultivars

Citation

Dai, F and Huang, YZ and Zhou, M and Zhang, GP, The influence of cold acclimation on antioxidative enzymes and antioxidants in sensitive and tolerant barley cultivars, Biologia Plantarum: Journal for Experimental Botany, 53, (2) pp. 257-262. ISSN 0006-3134 (2009) [Refereed Article]

DOI: doi:10.1007/s10535-009-0048-5

Abstract

In 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.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Crop and Pasture Improvement (Selection and Breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Winter Grains and Oilseeds
Objective Field:Barley
Author:Zhou, M (Professor Meixue Zhou)
ID Code:60423
Year Published:2009
Web of Science® Times Cited:30
Deposited By:Agricultural Science
Deposited On:2010-02-04
Last Modified:2010-04-24
Downloads:0

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