ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants
Abiotic stress in plants is an increasingly common problem in agriculture, and thus, studies on plant treatments with specific compounds that may help to mitigate these effects have increased in recent years. Melatonin (MET) application and its role in mitigating the negative effects of abiotic stre...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Antioxidants |
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| Online Access: | https://www.mdpi.com/2076-3921/9/11/1078 |
| _version_ | 1797548930947350528 |
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| author | Miriam Pardo-Hernández Maria López-Delacalle Rosa M. Rivero |
| author_facet | Miriam Pardo-Hernández Maria López-Delacalle Rosa M. Rivero |
| author_sort | Miriam Pardo-Hernández |
| collection | DOAJ |
| description | Abiotic stress in plants is an increasingly common problem in agriculture, and thus, studies on plant treatments with specific compounds that may help to mitigate these effects have increased in recent years. Melatonin (MET) application and its role in mitigating the negative effects of abiotic stress in plants have become important in the last few years. MET, a derivative of tryptophan, is an important plant-related response molecule involved in the growth, development, and reproduction of plants, and the induction of different stress factors. In addition, MET plays a protective role against different abiotic stresses such as salinity, high/low temperature, high light, waterlogging, nutrient deficiency and stress combination by regulating both the enzymatic and non-enzymatic antioxidant defense systems. Moreover, MET interacts with many signaling molecules, such as reactive oxygen species (ROS) and nitric oxide (NO), and participates in a wide variety of physiological reactions. It is well known that NO produces S-nitrosylation and NO<sub>2</sub>-Tyr of important antioxidant-related proteins, with this being an important mechanism for maintaining the antioxidant capacity of the AsA/GSH cycle under nitro-oxidative conditions, as extensively reviewed here under different abiotic stress conditions. Lastly, in this review, we show the coordinated actions between NO and MET as a long-range signaling molecule, regulating many responses in plants, including plant growth and abiotic stress tolerance. Despite all the knowledge acquired over the years, there is still more to know about how MET and NO act on the tolerance of plants to abiotic stresses. |
| first_indexed | 2024-03-10T15:06:47Z |
| format | Article |
| id | doaj.art-206333d7a2eb4cd49efc9d10ae01cf06 |
| institution | Directory Open Access Journal |
| issn | 2076-3921 |
| language | English |
| last_indexed | 2024-03-10T15:06:47Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antioxidants |
| spelling | doaj.art-206333d7a2eb4cd49efc9d10ae01cf062023-11-20T19:39:39ZengMDPI AGAntioxidants2076-39212020-11-01911107810.3390/antiox9111078ROS and NO Regulation by Melatonin Under Abiotic Stress in PlantsMiriam Pardo-Hernández0Maria López-Delacalle1Rosa M. Rivero2Department of Plant Nutrition, Center of Edaphology and Applied Biology of Segura (CEBAS-CSIC), Campus Universitario Espinardo, Espinardo, 30100 Murcia, SpainDepartment of Plant Nutrition, Center of Edaphology and Applied Biology of Segura (CEBAS-CSIC), Campus Universitario Espinardo, Espinardo, 30100 Murcia, SpainDepartment of Plant Nutrition, Center of Edaphology and Applied Biology of Segura (CEBAS-CSIC), Campus Universitario Espinardo, Espinardo, 30100 Murcia, SpainAbiotic stress in plants is an increasingly common problem in agriculture, and thus, studies on plant treatments with specific compounds that may help to mitigate these effects have increased in recent years. Melatonin (MET) application and its role in mitigating the negative effects of abiotic stress in plants have become important in the last few years. MET, a derivative of tryptophan, is an important plant-related response molecule involved in the growth, development, and reproduction of plants, and the induction of different stress factors. In addition, MET plays a protective role against different abiotic stresses such as salinity, high/low temperature, high light, waterlogging, nutrient deficiency and stress combination by regulating both the enzymatic and non-enzymatic antioxidant defense systems. Moreover, MET interacts with many signaling molecules, such as reactive oxygen species (ROS) and nitric oxide (NO), and participates in a wide variety of physiological reactions. It is well known that NO produces S-nitrosylation and NO<sub>2</sub>-Tyr of important antioxidant-related proteins, with this being an important mechanism for maintaining the antioxidant capacity of the AsA/GSH cycle under nitro-oxidative conditions, as extensively reviewed here under different abiotic stress conditions. Lastly, in this review, we show the coordinated actions between NO and MET as a long-range signaling molecule, regulating many responses in plants, including plant growth and abiotic stress tolerance. Despite all the knowledge acquired over the years, there is still more to know about how MET and NO act on the tolerance of plants to abiotic stresses.https://www.mdpi.com/2076-3921/9/11/1078melatoninROSNOpost-translational modifications (PMTs), abiotic stressdroughtsalinity |
| spellingShingle | Miriam Pardo-Hernández Maria López-Delacalle Rosa M. Rivero ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants Antioxidants melatonin ROS NO post-translational modifications (PMTs), abiotic stress drought salinity |
| title | ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants |
| title_full | ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants |
| title_fullStr | ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants |
| title_full_unstemmed | ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants |
| title_short | ROS and NO Regulation by Melatonin Under Abiotic Stress in Plants |
| title_sort | ros and no regulation by melatonin under abiotic stress in plants |
| topic | melatonin ROS NO post-translational modifications (PMTs), abiotic stress drought salinity |
| url | https://www.mdpi.com/2076-3921/9/11/1078 |
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