Enhanced Salinity Tolerance of <i>Medicago sativa</i>, Roots AM Colonization and Soil Enzyme Activities by PGPR
Abiotic stresses such as salt are typical negative factors that have a considerable impact on agricultural output around the world. The goal of this study was to investigate the effect of halotolerant plant-growth-promoting rhizobacteria (PGPR) on plant growth and soil function under salinity stress...
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| Format: | Article |
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MDPI AG
2022-06-01
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| Series: | Environmental Sciences Proceedings |
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| Online Access: | https://www.mdpi.com/2673-4931/16/1/14 |
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| author | Nabil Tirry Mohamed Ferioun Aziza Kouchou Ghizlane Laghmari Wifak Bahafid Naïma El Ghachtouli |
| author_facet | Nabil Tirry Mohamed Ferioun Aziza Kouchou Ghizlane Laghmari Wifak Bahafid Naïma El Ghachtouli |
| author_sort | Nabil Tirry |
| collection | DOAJ |
| description | Abiotic stresses such as salt are typical negative factors that have a considerable impact on agricultural output around the world. The goal of this study was to investigate the effect of halotolerant plant-growth-promoting rhizobacteria (PGPR) on plant growth and soil function under salinity stress. The consortium of four PGPR (<i>Pseudomonas putida</i>, <i>Alcaligenes</i> sp., <i>Klebsiella</i> sp., and <i>Pseudomonas cedrina</i>) was tested for its effect on growth, chlorophyll content, oxidative stress, and root arbuscular mycorrhizal (AM) colonization of <i>Medicago sativa</i> in pots experiment under salt stress. The bacteria’s impact on soil enzyme activity was also investigated. Overall, in comparison to the non-inoculated control, inoculating <i>M. sativa</i> plants with the bacterial consortium allowed us to overcome the unfavorable effects of NaCl stress and enhanced plant growth, root AM colonization, and leaf chlorophyll content. It also reduced the levels of oxidative damage indicators such as malondialdehyde, hydrogen peroxide, and proline. Furthermore, the consortium had a beneficial effect on the activities of soil phosphatase, β-galactosidase, and arylamidase. The bacterial consortium has the potential to be employed as bio-inoculants for plants growing under salt stress. |
| first_indexed | 2024-03-11T06:33:38Z |
| format | Article |
| id | doaj.art-155b364769fa45aaa73341174eb62728 |
| institution | Directory Open Access Journal |
| issn | 2673-4931 |
| language | English |
| last_indexed | 2024-03-11T06:33:38Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Environmental Sciences Proceedings |
| spelling | doaj.art-155b364769fa45aaa73341174eb627282023-11-17T11:00:52ZengMDPI AGEnvironmental Sciences Proceedings2673-49312022-06-011611410.3390/environsciproc2022016014Enhanced Salinity Tolerance of <i>Medicago sativa</i>, Roots AM Colonization and Soil Enzyme Activities by PGPRNabil Tirry0Mohamed Ferioun1Aziza Kouchou2Ghizlane Laghmari3Wifak Bahafid4Naïma El Ghachtouli5Laboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technology, Sidi Mohamed Ben Abdellah University, Fez 30000, MoroccoLaboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technology, Sidi Mohamed Ben Abdellah University, Fez 30000, MoroccoLaboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technology, Sidi Mohamed Ben Abdellah University, Fez 30000, MoroccoLaboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technology, Sidi Mohamed Ben Abdellah University, Fez 30000, MoroccoLaboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technology, Sidi Mohamed Ben Abdellah University, Fez 30000, MoroccoLaboratory of Microbial Biotechnology and Bioactive Molecules, Faculty of Sciences and Technology, Sidi Mohamed Ben Abdellah University, Fez 30000, MoroccoAbiotic stresses such as salt are typical negative factors that have a considerable impact on agricultural output around the world. The goal of this study was to investigate the effect of halotolerant plant-growth-promoting rhizobacteria (PGPR) on plant growth and soil function under salinity stress. The consortium of four PGPR (<i>Pseudomonas putida</i>, <i>Alcaligenes</i> sp., <i>Klebsiella</i> sp., and <i>Pseudomonas cedrina</i>) was tested for its effect on growth, chlorophyll content, oxidative stress, and root arbuscular mycorrhizal (AM) colonization of <i>Medicago sativa</i> in pots experiment under salt stress. The bacteria’s impact on soil enzyme activity was also investigated. Overall, in comparison to the non-inoculated control, inoculating <i>M. sativa</i> plants with the bacterial consortium allowed us to overcome the unfavorable effects of NaCl stress and enhanced plant growth, root AM colonization, and leaf chlorophyll content. It also reduced the levels of oxidative damage indicators such as malondialdehyde, hydrogen peroxide, and proline. Furthermore, the consortium had a beneficial effect on the activities of soil phosphatase, β-galactosidase, and arylamidase. The bacterial consortium has the potential to be employed as bio-inoculants for plants growing under salt stress.https://www.mdpi.com/2673-4931/16/1/14plant growth promoting rhizobacteriasalt stress<i>Medicago sativa</i>arbuscular mycorrhizasoil enzyme activities |
| spellingShingle | Nabil Tirry Mohamed Ferioun Aziza Kouchou Ghizlane Laghmari Wifak Bahafid Naïma El Ghachtouli Enhanced Salinity Tolerance of <i>Medicago sativa</i>, Roots AM Colonization and Soil Enzyme Activities by PGPR Environmental Sciences Proceedings plant growth promoting rhizobacteria salt stress <i>Medicago sativa</i> arbuscular mycorrhiza soil enzyme activities |
| title | Enhanced Salinity Tolerance of <i>Medicago sativa</i>, Roots AM Colonization and Soil Enzyme Activities by PGPR |
| title_full | Enhanced Salinity Tolerance of <i>Medicago sativa</i>, Roots AM Colonization and Soil Enzyme Activities by PGPR |
| title_fullStr | Enhanced Salinity Tolerance of <i>Medicago sativa</i>, Roots AM Colonization and Soil Enzyme Activities by PGPR |
| title_full_unstemmed | Enhanced Salinity Tolerance of <i>Medicago sativa</i>, Roots AM Colonization and Soil Enzyme Activities by PGPR |
| title_short | Enhanced Salinity Tolerance of <i>Medicago sativa</i>, Roots AM Colonization and Soil Enzyme Activities by PGPR |
| title_sort | enhanced salinity tolerance of i medicago sativa i roots am colonization and soil enzyme activities by pgpr |
| topic | plant growth promoting rhizobacteria salt stress <i>Medicago sativa</i> arbuscular mycorrhiza soil enzyme activities |
| url | https://www.mdpi.com/2673-4931/16/1/14 |
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