The Effects of Salinity on Aquatic Plant Growth in Ethiopia
DOI:
https://doi.org/10.47604/ijns.3211Keywords:
Biological Nitrogen Fixation, Inoculums, Rhizobium, Rhizobium leguminosarum, SymbiosisAbstract
Purpose: The aim of the study was to investigate the effects of salinity on aquatic plant growth in Ethiopia.
Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries.
Findings: Salinity negatively impacts aquatic plant growth in Ethiopia, reducing seed germination, photosynthesis, and nutrient uptake, leading to stunted growth. Studies in the Awash River Basin and Rift Valley lakes show that high salt levels cause osmotic stress, ion toxicity, and oxidative damage, weakening freshwater plants like papyrus and water hyacinth. Adaptive strategies, such as salt-tolerant species, better water management, and riparian afforestation, are essential for ecosystem restoration.
Unique Contribution to Theory, Practice and Policy: Osmotic stress theory, ion toxicity and selectivity theory & salt tolerance mechanism theory may be used to anchor future studies on the effects of salinity on aquatic plant growth in Ethiopia. Practical experiments using hydroponic systems and controlled salinity environments should be conducted to optimize plant growth in brackish and saltwater conditions. Governments and environmental organizations should establish clear guidelines for salinity thresholds in aquatic ecosystems to safeguard biodiversity and freshwater resources.
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References
Ansari, A. A., Naeem, M., Gill, S. S., & AlZuaibr, F. M. (2020). Phytoremediation of contaminated waters: An eco-friendly technology based on aquatic macrophytes application. Egyptian Journal of Aquatic Research, 46(3), 215-227. https://doi.org/10.1016/j.ejar.2020.04.003
Bemal, S., & Anil, A. C. (2018). Effects of salinity on cellular growth and exopolysaccharide production of freshwater Synechococcus strain CCAP1405. Journal of Plankton Research, 40(1), 46–58. Retrieved from https://academic.oup.com/plankt/article-abstract/40/1/46/4677315
Benti, N. E., Gurmesa, G. S., Aneseyee, A. B., & Tesfaye, K. (2021). The current status, challenges, and prospects of using biomass energy in Ethiopia. Biotechnology for Biofuels, 14(1), 1-22. https://doi.org/10.1186/s13068-021-02060-3
status, challenges, and prospects of using biomass energy in Ethiopia. Biotechnology for Biofuels, 14(1), 1-22. https://doi.org/10.1186/s13068-021-02060-3
Castillo, A. M., Sharpe, D. M. T., Ghalambor, C. K., & De León, L. F. (2018). Exploring the effects of salinization on trophic diversity in freshwater ecosystems: a quantitative review. Hydrobiologia. Retrieved from https://link.springer.com/article/10.1007/s10750-017-3403-0
Chimphango, A., Hierro-Iglesias, C., & Thornley, P. (2022). Opportunities for the development of cassava waste biorefineries for the production of polyhydroxyalkanoates in Sub-Saharan Africa. Biomass and Bioenergy, 161, 106593. https://doi.org/10.1016/j.biombioe.2022.106593
Dasgupta, S., Hossain, M. M., & Huq, M. (2018). Climate change, salinization and high-yield rice production in coastal Bangladesh. Agricultural and Resource Economics Review. Retrieved from https://www.cambridge.org/core/journals/agricultural-and-resource-economics-review/article/climate-change-salinization-and-highyield-rice-production-in-coastal-bangladesh/D118AAC97F779EB26F97DE207A5803CE
Dinneny, J. R. (2019). Developmental responses to water and salinity in root systems. Annual Review of Cell and Developmental Biology. Retrieved from https://www.annualreviews.org/content/journals/10.1146/annurev-cellbio-100617-062949
Flowers, T. J., & Colmer, T. D. (2019). Salinity tolerance in halophytes: Trends and mechanisms. New Phytologist, 221(1), 32-49. DOI: 10.1111/nph.15447
Hameed, A., Ahmed, M. Z., Hussain, T., Aziz, I., Ahmad, N., & Ali, S. (2021). Effects of salinity stress on chloroplast structure and function. Cells, 10(8), 2023. Retrieved from https://www.mdpi.com/2073-4409/10/8/2023
Hessini, K., Issaoui, K., Ferchichi, S., Saif, T., & Ltaief, B. (2019). Interactive effects of salinity and nitrogen forms on plant growth, photosynthesis, and osmotic adjustment in maize. Plant Physiology and Biochemistry. Retrieved from https://www.sciencedirect.com/science/article/pii/S0981942819300877
Jekayinfa, S. O., Orisaleye, J. I., & Pecenka, R. (2020). An assessment of potential resources for biomass energy in Nigeria. Resources, 9(8), 92. https://doi.org/10.3390/resources9080092
Kumar, D., Jha, S., & Shukla, P. (2021). Effects of salinity stress on aquatic plants: Physiological and biochemical insights. Environmental and Experimental Botany, 184, 104368. DOI: 10.1016/j.envexpbot.2021.104368
Liang, W., Ma, X., Wan, P., & Liu, L. (2018). Plant salt-tolerance mechanism: A review. Biochemical and Biophysical Research Communications. Retrieved from https://www.sciencedirect.com/science/article/pii/S0006291X17322209
Lovelock, C., Jiang, J., & Peters, R. (2020). The interplay between vegetation and water in mangroves: new perspectives for mangrove stand modeling and ecological research. Wetlands Ecology and Management. Retrieved from https://link.springer.com/article/10.1007/s11273-020-09733-0
Munns, R., Gilliham, M., & Futuyma, D. J. (2020). Mechanisms of salinity tolerance in plants: An evolutionary perspective. Annual Review of Plant Biology, 71, 703-731. DOI: 10.1146/annurev-arplant-073219-025902
Mustafa, H. M., & Hayder, G. (2021). Recent studies on applications of aquatic weed plants in phytoremediation of wastewater: A review article. Ain Shams Engineering Journal, 12(2), 1031-1044. https://doi.org/10.1016/j.asej.2020.06.003
Nahar, K., & Hoque, S. (2021). Phytoremediation to improve eutrophic ecosystem by the floating aquatic macrophyte, water lettuce (Pistia stratiotes L.) at lab scale. Egyptian Journal of Aquatic Research, 47(2), 145-159. https://doi.org/10.1016/j.ejar.2021.01.002
Naylor, R. L., Hardy, R. W., Buschmann, A. H., Bush, S. R., et al. (2021). A 20-year retrospective review of global aquaculture. Nature, 591, 551–563. https://doi.org/10.1038/s41586-021-03308-6
Oyewo, A. S., & Breyer, C. (2021). The role of biomass in Sub-Saharan Africa's fully renewable power sector – The case of Ghana. Renewable Energy, 171, 155-175. https://doi.org/10.1016/j.renene.2021.02.003
Parida, A. K., & Das, A. B. (2020). Salt tolerance mechanisms in mangroves: An overview. Trees, 34(6), 1489-1506. DOI: 10.1007/s00468-020-01996-6
Pellegrini, E., Contin, M., & Bravo, C. (2022). Impacts of salinization caused by sea level rise on the biological processes of coastal soils-a review. Frontiers in Environmental Science. Retrieved from https://www.frontiersin.org/articles/10.3389/fenvs.2022.909415/full
Popp, J., Kovács, S., Oláh, J., Divéki, Z., & Balázs, E. (2021). Bioeconomy: Biomass and biomass-based energy supply and demand. New Biotechnology, 60, 65-76. https://doi.org/10.1016/j.nbt.2020.12.003
Saddiq, M. S., Iqbal, S., Hafeez, M. B., Ibrahim, A. M. H., & Raza, A. (2021). Effect of salinity stress on physiological changes in winter and spring wheat. Agronomy, 11(6), 1193. Retrieved from https://www.mdpi.com/2073-4395/11/6/1193
Shahid, M. A., Sarkhosh, A., Khan, N., Balal, R. M., Ali, S., & Basra, S. M. (2020). Insights into the physiological and biochemical impacts of salt stress on plant growth and development. Agronomy, 10(7), 938. Retrieved from https://www.mdpi.com/2073-4395/10/7/938
Singh, R. K., & Flowers, T. J. (2021). Salt tolerance in rice: Seedling and reproductive stage QTL mapping come of age. Theoretical and Applied Genetics. Retrieved from https://link.springer.com/article/10.1007/s00122-021-03890-3
Velasco, J., & Gutiérrez-Cánovas, C. (2019). Effects of salinity changes on aquatic organisms in a multiple stressor context. Philosophical Transactions of the Royal Society B. Retrieved from https://royalsocietypublishing.org/doi/abs/10.1098/rstb.2018.0011
Xiao, R., Yin, L. S., & Huang, D. (2021). Phytoremediation of poly-and perfluoroalkyl substances: A review on aquatic plants, influencing factors, and phytotoxicity. Journal of Hazardous Materials. Retrieved from https://www.sciencedirect.com/science/article/pii/S0304389421012784
Zhu, Z., & Bouma, T. J. (2020). Biomechanical properties of marsh vegetation in space and time: effects of salinity, inundation and seasonality. Annals of Botany, 125(2), 277–291. Retrieved from https://academic.oup.com/aob/article-abstract/125/2/277/5485424
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