Enhancing Salt Tolerance in Soybean by Exogenous Boron: Intrinsic Study of the Ascorbate-Glutathione and Glyoxalase Pathways
Boron (B) performs physiological functions in higher plants as an essential micronutrient, but its protective role in salt stress is poorly understood. Soybean (<i>Glycine max</i> L.) is planted widely throughout the world, and salinity has adverse effects on its physiology. Here, the ro...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/10/2085 |
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| author | Hesham F. Alharby Kamrun Nahar Hassan S. Al-Zahrani Khalid Rehman Hakeem Mirza Hasanuzzaman |
| author_facet | Hesham F. Alharby Kamrun Nahar Hassan S. Al-Zahrani Khalid Rehman Hakeem Mirza Hasanuzzaman |
| author_sort | Hesham F. Alharby |
| collection | DOAJ |
| description | Boron (B) performs physiological functions in higher plants as an essential micronutrient, but its protective role in salt stress is poorly understood. Soybean (<i>Glycine max</i> L.) is planted widely throughout the world, and salinity has adverse effects on its physiology. Here, the role of B (1 mM boric acid) in salt stress was studied by subjecting soybean plants to two levels of salt stress: mild (75 mM NaCl) and severe (150 mM NaCl). Exogenous B relieved oxidative stress by enhancing antioxidant defense system components, such as ascorbate (AsA) levels, AsA/dehydroascorbate ratios, glutathione (GSH) levels, the GSH and glutathione disulfide ratios, and ascorbate peroxidase, monodehydroascorbate reductase, and dehydroascorbate reductase activities. B also enhanced the methylglyoxal detoxification process by upregulation of the components of the glyoxalase system in salt-stressed plants. Overall, B supplementation enhanced antioxidant defense and glyoxalase system components to alleviate oxidative stress and MG toxicity induced by salt stress. B also improved the physiology of salt-affected soybean plants. |
| first_indexed | 2024-03-10T06:15:08Z |
| format | Article |
| id | doaj.art-43b7930831a44daa87ee7e3f2b6d0b07 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T06:15:08Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-43b7930831a44daa87ee7e3f2b6d0b072023-11-22T19:43:32ZengMDPI AGPlants2223-77472021-10-011010208510.3390/plants10102085Enhancing Salt Tolerance in Soybean by Exogenous Boron: Intrinsic Study of the Ascorbate-Glutathione and Glyoxalase PathwaysHesham F. Alharby0Kamrun Nahar1Hassan S. Al-Zahrani2Khalid Rehman Hakeem3Mirza Hasanuzzaman4Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDepartment of Agricultural Botany, Sher-e-Bangla Agricultural University, Dhaka 1207, BangladeshDepartment of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDepartment of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi ArabiaDepartment of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka 1207, BangladeshBoron (B) performs physiological functions in higher plants as an essential micronutrient, but its protective role in salt stress is poorly understood. Soybean (<i>Glycine max</i> L.) is planted widely throughout the world, and salinity has adverse effects on its physiology. Here, the role of B (1 mM boric acid) in salt stress was studied by subjecting soybean plants to two levels of salt stress: mild (75 mM NaCl) and severe (150 mM NaCl). Exogenous B relieved oxidative stress by enhancing antioxidant defense system components, such as ascorbate (AsA) levels, AsA/dehydroascorbate ratios, glutathione (GSH) levels, the GSH and glutathione disulfide ratios, and ascorbate peroxidase, monodehydroascorbate reductase, and dehydroascorbate reductase activities. B also enhanced the methylglyoxal detoxification process by upregulation of the components of the glyoxalase system in salt-stressed plants. Overall, B supplementation enhanced antioxidant defense and glyoxalase system components to alleviate oxidative stress and MG toxicity induced by salt stress. B also improved the physiology of salt-affected soybean plants.https://www.mdpi.com/2223-7747/10/10/2085trace elementplant nutrientsalinityantioxidant defense systemglyoxalase system |
| spellingShingle | Hesham F. Alharby Kamrun Nahar Hassan S. Al-Zahrani Khalid Rehman Hakeem Mirza Hasanuzzaman Enhancing Salt Tolerance in Soybean by Exogenous Boron: Intrinsic Study of the Ascorbate-Glutathione and Glyoxalase Pathways Plants trace element plant nutrient salinity antioxidant defense system glyoxalase system |
| title | Enhancing Salt Tolerance in Soybean by Exogenous Boron: Intrinsic Study of the Ascorbate-Glutathione and Glyoxalase Pathways |
| title_full | Enhancing Salt Tolerance in Soybean by Exogenous Boron: Intrinsic Study of the Ascorbate-Glutathione and Glyoxalase Pathways |
| title_fullStr | Enhancing Salt Tolerance in Soybean by Exogenous Boron: Intrinsic Study of the Ascorbate-Glutathione and Glyoxalase Pathways |
| title_full_unstemmed | Enhancing Salt Tolerance in Soybean by Exogenous Boron: Intrinsic Study of the Ascorbate-Glutathione and Glyoxalase Pathways |
| title_short | Enhancing Salt Tolerance in Soybean by Exogenous Boron: Intrinsic Study of the Ascorbate-Glutathione and Glyoxalase Pathways |
| title_sort | enhancing salt tolerance in soybean by exogenous boron intrinsic study of the ascorbate glutathione and glyoxalase pathways |
| topic | trace element plant nutrient salinity antioxidant defense system glyoxalase system |
| url | https://www.mdpi.com/2223-7747/10/10/2085 |
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