Strategies for Achieving High and Sustainable Plant Productivity in Saline Soil Conditions
Nurbekova Z. Satkanov M. Beisekova M. Akbassova A. Ualiyeva R. Cui J. Chen Y. Wang Z. Zhangazin S.
August 2024Multidisciplinary Digital Publishing Institute (MDPI)
Horticulturae
2024#10Issue 8
The accumulation of salt in arable lands is a source of significant abiotic stress, contributing to a 10% decline in the world’s total arable lands and threatening food productivity and the sustainability of agriculture. About 76 million hectares of productive land are estimated to have been affected by human-induced salinization such as extreme salt deposits in soil, which are mainly caused by the actions of humans. For instance, continued irrigation and the frequent use of chemical fertilizers need to be understood. To ensure food availability, it is essential to improve upon traditional farming methods using current technologies to facilitate the reclamation of saline-affected arable lands to achieve high and sustainable food production. This review details current innovative strategies such as the modification of metabolic pathways, manipulation of antioxidant pathways, genetic engineering, RNA interference technology, engineered nanoparticles, arbuscular mycorrhizal fungi (AMF), organic amendments, and trace elements for improving saline marginal lands. These strategies were identified to have contributed to the improvement of plants salinity tolerance in diverse ways. For instance, the accumulation of plant metabolites such as amino acids, sugars, polyols, organic acids, saponins, anthocyanins, polyphenols, and tannins detoxify plants and play crucial roles in mitigating the detrimental effects of oxidative damage posed by salinity stress. Multiple plant miRNAs encoding the up- and down-regulation of single- and multi-ion transporters have been engineered in plant species to enhance salt tolerance. Nanomaterials and plant root system colonized by arbuscular mycorrhizal increase water uptake, photosynthetic efficiency, and biomass allocation in plants exposed to saline stress by excluding 65 percent of the Na+ uptake and enhancing K+ uptake by 84.21 percent. Organic amendments and trace elements reduced salinity concentrations by 22 percent and improved growth by up to 84 percent in maize subjected to salinity stress. This study also discusses how researchers can use these strategies to improve plants growth, development, and survival in saline soil conditions to enhance the productivity and sustainability of agriculture. The strategies discussed in this study have also proven to be promising approaches for developing salinity stress tolerance strategies for plants to increase agricultural productivity and sustainability.
agricultural crops , improvement , increase , salinity stress , tolerance
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Department of Biotechnology and Microbiology, L.N. Gumilyov, Eurasian National University, Astana, 010000, Kazakhstan
Department of General Biology and Genomics, L.N. Gumilyov, Eurasian National University, Astana, 010000, Kazakhstan
Department of Biology and Ecology, Toraighyrov University, Pavlodar, 140000, Kazakhstan
Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610299, China
CAS Key Laboratory of Environmental and Applied Microbiology, Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology Chinese Academy of Sciences, Chengdu, 610041, China
Department of Biotechnology and Microbiology
Department of General Biology and Genomics
Department of Biology and Ecology
Institute of Mountain Hazards and Environment
CAS Key Laboratory of Environmental and Applied Microbiology
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