Effects of Melatonin Priming on Suaeda corniculata Seed Germination, Antioxidant Defense, and Reserve Mobilization: Implications for Salinized Wetland Restoration
Melatonin priming has been widely reported to positively affect seed germination under abiotic stresses. However, there is still a gap in knowledge on how melatonin priming impacts the seed germination and physiological change of wetland plant species. We assessed the effects of different melatonin...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-07-01
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| Series: | Frontiers in Ecology and Evolution |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fevo.2022.941032/full |
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| author | Mingye Zhang Mingye Zhang Shuchen Liu Shouzheng Tong Dongjie Zhang Qing Qi Yanji Wang Yanji Wang Xuehong Wang Yu An Xianguo Lu |
| author_facet | Mingye Zhang Mingye Zhang Shuchen Liu Shouzheng Tong Dongjie Zhang Qing Qi Yanji Wang Yanji Wang Xuehong Wang Yu An Xianguo Lu |
| author_sort | Mingye Zhang |
| collection | DOAJ |
| description | Melatonin priming has been widely reported to positively affect seed germination under abiotic stresses. However, there is still a gap in knowledge on how melatonin priming impacts the seed germination and physiological change of wetland plant species. We assessed the effects of different melatonin concentrations on germination characteristics, antioxidant defense, and reserve mobilization of Suaeda corniculata seeds. Priming of S. corniculata seeds with 50 μM melatonin significantly improved the germination rate, germination speed, germination index, superoxide dismutase and peroxidase activity, and soluble sugar content as compared with the control, and effectively reduced the malondialdehyde content, promoted starch, soluble protein, and fat mobilization. However, the stress tolerance ability of S. corniculata seeds was reduced by high melatonin concentration. The structural equation model indicated that the melatonin priming directly affects the seed germination, while also indirectly regulating the antioxidant defense system and reserve mobilization. In conclusion, melatonin priming affects the S. corniculata seed germination under salinization stress in a concentration-dependent manner via both direct and indirect regulatory pathways. Insights into these aspects will advance our understanding of how melatonin priming affects S. corniculata seed germination and provide invaluable information and technical support for the restoration of salinized wetlands in the Momoge National Nature Reserve. |
| first_indexed | 2024-12-12T11:56:11Z |
| format | Article |
| id | doaj.art-eec2e27761144b649aa14db99726cf6b |
| institution | Directory Open Access Journal |
| issn | 2296-701X |
| language | English |
| last_indexed | 2024-12-12T11:56:11Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Ecology and Evolution |
| spelling | doaj.art-eec2e27761144b649aa14db99726cf6b2022-12-22T00:25:11ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2022-07-011010.3389/fevo.2022.941032941032Effects of Melatonin Priming on Suaeda corniculata Seed Germination, Antioxidant Defense, and Reserve Mobilization: Implications for Salinized Wetland RestorationMingye Zhang0Mingye Zhang1Shuchen Liu2Shouzheng Tong3Dongjie Zhang4Qing Qi5Yanji Wang6Yanji Wang7Xuehong Wang8Yu An9Xianguo Lu10Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaSchool of Environment, Northeast Normal University, Changchun, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaShandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta, Binzhou University, Binzhou, ChinaShijiazhuang University, Shijiazhuang, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaUniversity of Chinese Academy of Sciences, Beijing, ChinaThe Institute for Advanced Study of Coastal Ecology, Key Laboratory of Ecological Restoration and Conservation of Coastal Wetlands in Universities of Shandong, Ludong University, Yantai, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaKey Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, ChinaMelatonin priming has been widely reported to positively affect seed germination under abiotic stresses. However, there is still a gap in knowledge on how melatonin priming impacts the seed germination and physiological change of wetland plant species. We assessed the effects of different melatonin concentrations on germination characteristics, antioxidant defense, and reserve mobilization of Suaeda corniculata seeds. Priming of S. corniculata seeds with 50 μM melatonin significantly improved the germination rate, germination speed, germination index, superoxide dismutase and peroxidase activity, and soluble sugar content as compared with the control, and effectively reduced the malondialdehyde content, promoted starch, soluble protein, and fat mobilization. However, the stress tolerance ability of S. corniculata seeds was reduced by high melatonin concentration. The structural equation model indicated that the melatonin priming directly affects the seed germination, while also indirectly regulating the antioxidant defense system and reserve mobilization. In conclusion, melatonin priming affects the S. corniculata seed germination under salinization stress in a concentration-dependent manner via both direct and indirect regulatory pathways. Insights into these aspects will advance our understanding of how melatonin priming affects S. corniculata seed germination and provide invaluable information and technical support for the restoration of salinized wetlands in the Momoge National Nature Reserve.https://www.frontiersin.org/articles/10.3389/fevo.2022.941032/fullantioxidant defensemelatonin primingreserve mobilizationsalinization stressseed germinationSuaeda corniculata |
| spellingShingle | Mingye Zhang Mingye Zhang Shuchen Liu Shouzheng Tong Dongjie Zhang Qing Qi Yanji Wang Yanji Wang Xuehong Wang Yu An Xianguo Lu Effects of Melatonin Priming on Suaeda corniculata Seed Germination, Antioxidant Defense, and Reserve Mobilization: Implications for Salinized Wetland Restoration Frontiers in Ecology and Evolution antioxidant defense melatonin priming reserve mobilization salinization stress seed germination Suaeda corniculata |
| title | Effects of Melatonin Priming on Suaeda corniculata Seed Germination, Antioxidant Defense, and Reserve Mobilization: Implications for Salinized Wetland Restoration |
| title_full | Effects of Melatonin Priming on Suaeda corniculata Seed Germination, Antioxidant Defense, and Reserve Mobilization: Implications for Salinized Wetland Restoration |
| title_fullStr | Effects of Melatonin Priming on Suaeda corniculata Seed Germination, Antioxidant Defense, and Reserve Mobilization: Implications for Salinized Wetland Restoration |
| title_full_unstemmed | Effects of Melatonin Priming on Suaeda corniculata Seed Germination, Antioxidant Defense, and Reserve Mobilization: Implications for Salinized Wetland Restoration |
| title_short | Effects of Melatonin Priming on Suaeda corniculata Seed Germination, Antioxidant Defense, and Reserve Mobilization: Implications for Salinized Wetland Restoration |
| title_sort | effects of melatonin priming on suaeda corniculata seed germination antioxidant defense and reserve mobilization implications for salinized wetland restoration |
| topic | antioxidant defense melatonin priming reserve mobilization salinization stress seed germination Suaeda corniculata |
| url | https://www.frontiersin.org/articles/10.3389/fevo.2022.941032/full |
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