Dissecting the osmotic and oxidative stress responses in salt-tolerant and salt-sensitive wheat genotypes under saline conditions

Ulkar Ibrahimova, Javanshir Talai, Md. Mahadi Hasan, Irada Huseynova, Vaseem Raja, Anshu Rastogi, Hamideh Ghaffari, Marek Zivcak, Xinghong Yang and Marian Brestic
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Ulkar Ibrahimova: Institute of Molecular Biology and Biotechnologies, Ministry of Science and Education of the Republic of Azerbaijan, Baku, Azerbaijan
Javanshir Talai: Research Institute of Crop Husbandry, Ministry of Agriculture of the Republic of Azerbaijan, Baku, Azerbaijan
Md. Mahadi Hasan: State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, Lanzhou, P.R. China
Irada Huseynova: Institute of Molecular Biology and Biotechnologies, Ministry of Science and Education of the Republic of Azerbaijan, Baku, Azerbaijan
Vaseem Raja: University Centre for Research and Development, Chandigarh, University, Gharuan, Mohali Punjab, India
Anshu Rastogi: Department of Ecology and Environmental Protection, Faculty of Environmental and Mechanical Engineering, Poznań University of Life Sciences, Poznań, Poland
Hamideh Ghaffari: Department of Agronomy, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran
Marek Zivcak: College of Life Sciences, State Key Laboratory of Wheat Improvement Shandong Agricultural University, Taian, P.R. China
Xinghong Yang: College of Life Sciences, State Key Laboratory of Wheat Improvement Shandong Agricultural University, Taian, P.R. China
Marian Brestic: College of Life Sciences, State Key Laboratory of Wheat Improvement Shandong Agricultural University, Taian, P.R. China

Plant, Soil and Environment, 2025, vol. 71, issue 1, 36-47

Abstract: Salinity represents a significant abiotic stress that markedly influences plant growth through osmotic stress induction. Plants commonly undergo osmotic adaptation when subjected to prolonged periods of saline stress. The current experiments were conducted on five wheat (Triticum aestivum L.) genotypes with contrasting salt tolerance capacities - Mirbashir 128, Gobustan, Gyzyl bughda, Fatima, and Zirva 80 under salinity stress caused by 150 mmol NaCl. The relative water content and osmotic potential were found to decrease significantly in salinity-sensitive genotypes (Fatima and Zirva 80) compared to salinity-tolerant ones (Mirbashir 128, Gobustan, and Gyzyl bughda) when treated with 150 mmol NaCl. Salinity also caused the accumulation of soluble sugars and proline, the amounts of which were observed to be higher in salinity-tolerant genotypes than sensitive ones, while lipid peroxidation was higher in salinity-sensitive genotypes. In salinity-tolerant genotypes, 150 mmol NaCl caused increased antioxidant enzyme activities and accumulation of flavonoids, including anthocyanins, confirming the rapid development of the stress reactions in these plants. Differences in the osmoregulation indicators and antioxidant responses between salinity-tolerant and sensitive plants are assumed to be related to their salinity-tolerance traits. This investigation provides pivotal foundational insights for enhancing the salt tolerance of wheat genotypes, thereby potentially enhancing both yield and quality in diverse wheat cultivars thriving in saline environments.

Keywords: ascorbate; malondialdehyde; osmolytes; reactive oxygen species; water transport (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:71:y:2025:i:1:id:459-2024-pse

DOI: 10.17221/459/2024-PSE

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