Plant growth-promoting rhizobacteria: Salt stress alleviators to improve crop productivity for sustainable agriculture development
Soil salinity, a growing issue worldwide, is a detrimental consequence of the ever-changing climate, which has highlighted and worsened the conditions associated with damaged soil quality, reduced agricultural production, and decreasing land areas, thus resulting in an unsteady national economy. In...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2022.1101862/full |
| _version_ | 1828066459270512640 |
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| author | Kailash Chand Kumawat Barkha Sharma Sharon Nagpal Ajay Kumar Shalini Tiwari Ramakrishnan Madhavan Nair |
| author_facet | Kailash Chand Kumawat Barkha Sharma Sharon Nagpal Ajay Kumar Shalini Tiwari Ramakrishnan Madhavan Nair |
| author_sort | Kailash Chand Kumawat |
| collection | DOAJ |
| description | Soil salinity, a growing issue worldwide, is a detrimental consequence of the ever-changing climate, which has highlighted and worsened the conditions associated with damaged soil quality, reduced agricultural production, and decreasing land areas, thus resulting in an unsteady national economy. In this review, halo-tolerant plant growth-promoting rhizo-microbiomes (PGPRs) are evaluated in the salinity-affected agriculture as they serve as excellent agents in controlling various biotic–abiotic stresses and help in the augmentation of crop productivity. Integrated efforts of these effective microbes lighten the load of agro-chemicals on the environment while managing nutrient availability. PGPR-assisted modern agriculture practices have emerged as a green strategy to benefit sustainable farming without compromising the crop yield under salinity as well as salinity-affected supplementary stresses including increased temperature, drought, salinity, and potential invasive plant pathogenicity. PGPRs as bio-inoculants impart induced systemic tolerance (IST) to plants by the production of volatile organic compounds (VOCs), antioxidants, osmolytes, extracellular polymeric substances (EPS), phytohormones, and ACC-deaminase and recuperation of nutritional status and ionic homeostasis. Regulation of PGPR-induced signaling pathways such as MAPK and CDPK assists in salinity stress alleviation. The “Next Gen Agriculture” consists of the application of designer crop microbiomes through gene editing tools, for instance, CRISPR, and engineering of the metabolic pathways of the microbes so as to gain maximum plant resistance. The utilization of omics technologies over the traditional approaches can fulfill the criteria required to increase crop yields in a sustainable manner for feeding the burgeoning population and augment plant adaptability under climate change conditions, ultimately leading to improved vitality. Furthermore, constraints such as the crop specificity issue of PGPR, lack of acceptance by farmers, and legal regulatory aspects have been acknowledged while also discussing the future trends for product commercialization with the view of the changing climate. |
| first_indexed | 2024-04-10T23:30:58Z |
| format | Article |
| id | doaj.art-b33db53be4e048bd8e364b767ab9b805 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-04-10T23:30:58Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-b33db53be4e048bd8e364b767ab9b8052023-01-12T06:30:02ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2023-01-011310.3389/fpls.2022.11018621101862Plant growth-promoting rhizobacteria: Salt stress alleviators to improve crop productivity for sustainable agriculture developmentKailash Chand Kumawat0Barkha Sharma1Sharon Nagpal2Ajay Kumar3Shalini Tiwari4Ramakrishnan Madhavan Nair5Department of Industrial Microbiology, Jacob Institute of Biotechnology and Bioengineering, Sam Higginbottom University of Agriculture, Technology and Sciences (SHUATS), Prayagraj, Uttar Pradesh, IndiaDepartment of Microbiology, G. B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand, IndiaDepartment of Microbiology, Punjab Agricultural University, Ludhiana, Punjab, IndiaDepartment of Industrial Microbiology, Jacob Institute of Biotechnology and Bioengineering, Sam Higginbottom University of Agriculture, Technology and Sciences (SHUATS), Prayagraj, Uttar Pradesh, IndiaDepartment of Microbiology, G. B. Pant University of Agriculture & Technology, Pantnagar, Uttarakhand, IndiaWorld Vegetable Centre, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, IndiaSoil salinity, a growing issue worldwide, is a detrimental consequence of the ever-changing climate, which has highlighted and worsened the conditions associated with damaged soil quality, reduced agricultural production, and decreasing land areas, thus resulting in an unsteady national economy. In this review, halo-tolerant plant growth-promoting rhizo-microbiomes (PGPRs) are evaluated in the salinity-affected agriculture as they serve as excellent agents in controlling various biotic–abiotic stresses and help in the augmentation of crop productivity. Integrated efforts of these effective microbes lighten the load of agro-chemicals on the environment while managing nutrient availability. PGPR-assisted modern agriculture practices have emerged as a green strategy to benefit sustainable farming without compromising the crop yield under salinity as well as salinity-affected supplementary stresses including increased temperature, drought, salinity, and potential invasive plant pathogenicity. PGPRs as bio-inoculants impart induced systemic tolerance (IST) to plants by the production of volatile organic compounds (VOCs), antioxidants, osmolytes, extracellular polymeric substances (EPS), phytohormones, and ACC-deaminase and recuperation of nutritional status and ionic homeostasis. Regulation of PGPR-induced signaling pathways such as MAPK and CDPK assists in salinity stress alleviation. The “Next Gen Agriculture” consists of the application of designer crop microbiomes through gene editing tools, for instance, CRISPR, and engineering of the metabolic pathways of the microbes so as to gain maximum plant resistance. The utilization of omics technologies over the traditional approaches can fulfill the criteria required to increase crop yields in a sustainable manner for feeding the burgeoning population and augment plant adaptability under climate change conditions, ultimately leading to improved vitality. Furthermore, constraints such as the crop specificity issue of PGPR, lack of acceptance by farmers, and legal regulatory aspects have been acknowledged while also discussing the future trends for product commercialization with the view of the changing climate.https://www.frontiersin.org/articles/10.3389/fpls.2022.1101862/fullclimate stressCRISPRgenomicsplant growth promoting rhizobacteriaproteomics |
| spellingShingle | Kailash Chand Kumawat Barkha Sharma Sharon Nagpal Ajay Kumar Shalini Tiwari Ramakrishnan Madhavan Nair Plant growth-promoting rhizobacteria: Salt stress alleviators to improve crop productivity for sustainable agriculture development Frontiers in Plant Science climate stress CRISPR genomics plant growth promoting rhizobacteria proteomics |
| title | Plant growth-promoting rhizobacteria: Salt stress alleviators to improve crop productivity for sustainable agriculture development |
| title_full | Plant growth-promoting rhizobacteria: Salt stress alleviators to improve crop productivity for sustainable agriculture development |
| title_fullStr | Plant growth-promoting rhizobacteria: Salt stress alleviators to improve crop productivity for sustainable agriculture development |
| title_full_unstemmed | Plant growth-promoting rhizobacteria: Salt stress alleviators to improve crop productivity for sustainable agriculture development |
| title_short | Plant growth-promoting rhizobacteria: Salt stress alleviators to improve crop productivity for sustainable agriculture development |
| title_sort | plant growth promoting rhizobacteria salt stress alleviators to improve crop productivity for sustainable agriculture development |
| topic | climate stress CRISPR genomics plant growth promoting rhizobacteria proteomics |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2022.1101862/full |
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