Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought Stress
Drought stress constitutes a major challenge to wheat production. Melatonin plays a vital role in plants’ resistance to drought stress. Nevertheless, the influence of melatonin seed coating on the drought resistance ability of wheat remains unclear. Hence, in this study, wheat (Yunmai 112) was chose...
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2025-01-01
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| author | Xue Li Jia Liu Cuiping Zhang Ze Liu Xiang Guo Shaoxiang Li Hongsheng Li Kun Liu Kunzhi Li Mingliang Ding |
| author_facet | Xue Li Jia Liu Cuiping Zhang Ze Liu Xiang Guo Shaoxiang Li Hongsheng Li Kun Liu Kunzhi Li Mingliang Ding |
| author_sort | Xue Li |
| collection | DOAJ |
| description | Drought stress constitutes a major challenge to wheat production. Melatonin plays a vital role in plants’ resistance to drought stress. Nevertheless, the influence of melatonin seed coating on the drought resistance ability of wheat remains unclear. Hence, in this study, wheat (Yunmai 112) was chosen as the experimental material. The research results indicated that 100 µM exogenous melatonin treatment enhanced the germination rate of wheat seeds by 11% compared to the CK group. Melatonin seed coating (100 or 200 µM) significantly inhibited the accumulation of ROS in wheat seedlings under drought stress conditions and facilitated the growth of wheat seedlings. Then, 100 µM melatonin seed coating elevated the activity of antioxidant enzymes (CAT, Cu/Zn-SOD, POD, and T-GSH) in wheat seedlings and strengthened the resistance of wheat to drought stress. In contrast to the control, 100 or 200 µM melatonin seed coating significantly raised the contents of soluble protein and chlorophyll in wheat seedlings. Further studies demonstrated that 100 µM melatonin seed coating promoted the increase in the thousand-grain weight and yield of wheat under drought stress. Taking together, melatonin seed coating is an effective approach for enhancing the stress resistance and the yield of wheat under drought stress. |
| format | Article |
| id | doaj-art-e3d05884b9834c3cba9d185c3ebf5fc4 |
| institution | Kabale University |
| issn | 2079-7737 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Biology |
| spelling | doaj-art-e3d05884b9834c3cba9d185c3ebf5fc42025-01-24T13:23:38ZengMDPI AGBiology2079-77372025-01-011419410.3390/biology14010094Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought StressXue Li0Jia Liu1Cuiping Zhang2Ze Liu3Xiang Guo4Shaoxiang Li5Hongsheng Li6Kun Liu7Kunzhi Li8Mingliang Ding9Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, ChinaTuber Crops Research Institute, Yuxi Academy of Agricultural Sciences, Kunming 650204, ChinaTuber Crops Research Institute, Yuxi Academy of Agricultural Sciences, Kunming 650204, ChinaFaculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, ChinaFaculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, ChinaFood Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650204, ChinaFood Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650204, ChinaFood Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650204, ChinaFaculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, ChinaFood Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650204, ChinaDrought stress constitutes a major challenge to wheat production. Melatonin plays a vital role in plants’ resistance to drought stress. Nevertheless, the influence of melatonin seed coating on the drought resistance ability of wheat remains unclear. Hence, in this study, wheat (Yunmai 112) was chosen as the experimental material. The research results indicated that 100 µM exogenous melatonin treatment enhanced the germination rate of wheat seeds by 11% compared to the CK group. Melatonin seed coating (100 or 200 µM) significantly inhibited the accumulation of ROS in wheat seedlings under drought stress conditions and facilitated the growth of wheat seedlings. Then, 100 µM melatonin seed coating elevated the activity of antioxidant enzymes (CAT, Cu/Zn-SOD, POD, and T-GSH) in wheat seedlings and strengthened the resistance of wheat to drought stress. In contrast to the control, 100 or 200 µM melatonin seed coating significantly raised the contents of soluble protein and chlorophyll in wheat seedlings. Further studies demonstrated that 100 µM melatonin seed coating promoted the increase in the thousand-grain weight and yield of wheat under drought stress. Taking together, melatonin seed coating is an effective approach for enhancing the stress resistance and the yield of wheat under drought stress.https://www.mdpi.com/2079-7737/14/1/94wheatmelatonin seed coatingantioxidant activityyield |
| spellingShingle | Xue Li Jia Liu Cuiping Zhang Ze Liu Xiang Guo Shaoxiang Li Hongsheng Li Kun Liu Kunzhi Li Mingliang Ding Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought Stress Biology wheat melatonin seed coating antioxidant activity yield |
| title | Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought Stress |
| title_full | Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought Stress |
| title_fullStr | Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought Stress |
| title_full_unstemmed | Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought Stress |
| title_short | Melatonin Promotes Yield Increase in Wheat by Regulating Its Antioxidant System and Growth Under Drought Stress |
| title_sort | melatonin promotes yield increase in wheat by regulating its antioxidant system and growth under drought stress |
| topic | wheat melatonin seed coating antioxidant activity yield |
| url | https://www.mdpi.com/2079-7737/14/1/94 |
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