Ethanol Treatment Enhances Physiological and Biochemical Responses to Mitigate Saline Toxicity in Soybean

dc.creatorDas, Ashim Kumar
dc.creatorAnik, Touhidur Rahman
dc.creatorRahman, Md Mezanur (TTU)
dc.creatorKeya, Sanjida Sultana (TTU)
dc.creatorIslam, Md Robyul
dc.creatorRahman, Md Abiar
dc.creatorSultana, Sharmin
dc.creatorGhosh, Protik Kumar
dc.creatorKhan, Sabia
dc.creatorAhamed, Tofayel
dc.creatorGhosh, Totan Kumar
dc.creatorTran, Lam Son Phan (TTU)
dc.creatorMostofa, Mohammad Golam (TTU)
dc.description© 2022 by the authors. Licensee MDPI, Basel, Switzerland. cc-by
dc.description.abstractSoil salinity, a major environmental concern, significantly reduces plant growth and production all around the world. Finding solutions to reduce the salinity impacts on plants is critical for global food security. In recent years, the priming of plants with organic chemicals has shown to be a viable approach for the alleviation of salinity effects in plants. The current study examined the effects of exogenous ethanol in triggering salinity acclimatization responses in soybean by investigating growth responses, and numerous physiological and biochemical features. Foliar ethanol application to saline water-treated soybean plants resulted in an enhancement of biomass, leaf area, photosynthetic pigment contents, net photosynthetic rate, shoot relative water content, water use efficiency, and K+ and Mg2+ contents, leading to improved growth performance under salinity. Salt stress significantly enhanced the contents of reactive oxygen species (ROS), malondialdehyde, and electrolyte leakage in the leaves, suggesting salt-induced oxidative stress and membrane damage in soybean plants. In contrast, ethanol treatment of salt-treated soybean plants boosted ROS-detoxification mechanisms by enhancing the activities of antioxidant enzymes, including peroxidase, ascorbate peroxidase, catalase, and glutathione S-transferase. Ethanol application also augmented the levels of proline and total free amino acids in salt-exposed plants, implying a role of ethanol in maintaining osmotic adjustment in response to salt stress. Notably, exogenous ethanol decreased Na+ uptake while increasing K+ and Mg2+ uptake and their partitioning to leaves and roots in salt-stressed plants. Overall, our findings reveal the protective roles of ethanol against salinity in soybean and suggest that the use of this cost-effective and easily accessible ethanol in salinity mitigation could be an effective approach to increase soybean production in salt-affected areas.
dc.identifier.citationDas, A.K., Anik, T.R., Rahman, M.M., Keya, S.S., Islam, M.R., Rahman, M.A., Sultana, S., Ghosh, P.K., Khan, S., Ahamed, T., Ghosh, T.K., Tran, L.S.-P., & Mostofa, M.G.. 2022. Ethanol Treatment Enhances Physiological and Biochemical Responses to Mitigate Saline Toxicity in Soybean. Plants, 11(3).
dc.subjectIonic balance
dc.subjectOxidative damage
dc.subjectReactive oxygen species
dc.titleEthanol Treatment Enhances Physiological and Biochemical Responses to Mitigate Saline Toxicity in Soybean


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