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Molecules 2018, 23(5), 1091; https://doi.org/10.3390/molecules23051091

Cold Priming Induced Tolerance to Subsequent Low Temperature Stress is Enhanced by Melatonin Application during Recovery in Wheat

1
Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
2
Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, China
3
Agricultural Research Institute of Xu-huai Region, Lianyungang Academy of Agricultural Science, Lianyungang 222000, China
4
Faculty of Science, Department of Plant and Environmental Sciences, University of Copenhagen, Højbakkegård Allé 13, DK-2630 Tåstrup, Denmark
5
Institute of Agricultural Resources and Environment, Jilin Academy of Agriculture Sciences/State Engineering Laboratory of Maize, Changchun 130033, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Dun-Xian Tan
Received: 24 March 2018 / Revised: 2 May 2018 / Accepted: 4 May 2018 / Published: 4 May 2018
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Abstract

Cold priming can alleviate the effects of subsequent cold stress on wheat plant growth. Melatonin plays a key role in cold stress response in plants. In this study, the effects of foliar melatonin application during recovery on the cold tolerance of cold primed wheat plants were investigated. It was found that both melatonin and cold priming increased the photosynthetic rate and stomatal conductance, enhanced the activities of antioxidant enzymes, and altered the related gene expressions in wheat under cold stress. Melatonin application is helpful for the photosynthetic carbon assimilation and membrane stability of the cold primed plants under cold stress. These results suggested that foliar melatonin application during recovery enhanced the cold priming induced tolerance to subsequent low temperature stress in wheat. View Full-Text
Keywords: cold tolerance; melatonin; Triticum aestivum; mineral nutrition; priming cold tolerance; melatonin; Triticum aestivum; mineral nutrition; priming
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Sun, L.; Li, X.; Wang, Z.; Sun, Z.; Zhu, X.; Liu, S.; Song, F.; Liu, F.; Wang, Y. Cold Priming Induced Tolerance to Subsequent Low Temperature Stress is Enhanced by Melatonin Application during Recovery in Wheat. Molecules 2018, 23, 1091.

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