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| dc.creator | Tufail, Muhammad Aammar | |
| dc.creator | Bejarano, Ana | |
| dc.creator | Shakoor, Awais | |
| dc.creator | Naeem, Asif | |
| dc.creator | Arif, Muhammad Saleem | |
| dc.creator | Dar, Afzal Ahmed | |
| dc.creator | Farooq, Taimoor Hassan | |
| dc.creator | Pertot, Ilaria | |
| dc.creator | Puopolo, Gerardo | |
| dc.date | 2021 | |
| dc.date.accessioned | 2025-11-03T12:15:34Z | |
| dc.date.available | 2025-11-03T12:15:34Z | |
| dc.identifier | https://doi.org/10.3390/microorganisms9091861 | |
| dc.identifier | 2076-2607 | |
| dc.identifier | http://hdl.handle.net/10459.1/83429 | |
| dc.identifier.uri | http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/24154 | |
| dc.description | Soil salinity is a major problem affecting crop production worldwide. Lately, there have been great research efforts in increasing the salt tolerance of plants through the inoculation of plant growth-promoting endophytic bacteria. However, their ability to promote plant growth under no-stress and salinity-stress conditions remains largely uncertain. Here, we carried out a global meta-analysis to quantify the plant growth-promoting effects (improvement of morphological attributes, photosynthetic capacity, antioxidative ability, and ion homeostasis) of endophytic bacteria in plants under no-stress and salinity-stress conditions. In addition, we elucidated the underlying mechanisms of growth promotion in salt-sensitive (SS) and salt-tolerant (ST) plants derived from the interaction with endophytic bacteria under no-stress and salinity-stress conditions. Specifically, this work encompassed 42 peer-reviewed articles, a total of 77 experiments, and 24 different bacterial genera. On average, endophytic bacterial inoculation increased morphological parameters. Moreover, the effect of endophytic bacteria on the total dry biomass, number of leaves, root length, shoot length, and germination rate was generally greater under salinity-stress conditions than no-stress conditions. On a physiological level, the relative better performance of the bacterial inoculants under the salinity-stress condition was associated with the increase in total chlorophyll and chlorophyll-b, as well as with the decrease of 1-aminocylopropane-1-carboxylate concentration. Moreover, under the salinity-stress condition, bacterial inoculation conferred a significantly higher increase in root K+ concentration and decrease in leaf Na+ concentration than under the no-stress condition. In SS plants, bacterial inoculation induced a higher increase in chlorophyll-b and superoxide dismutase activity, as well as a higher decrease in abscisic acid content, than in ST plants. Under salinity-stress, endophytic bacterial inoculation increased root K+ concentration in both SS and ST plants but decreased root Na+ concentration only in ST plants. Overall, this meta-analysis suggests that endophytic bacterial inoculation is beneficial under both no salinity-stress and salinity-stress conditions, but the magnitude of benefit is definitely higher under salinity-stress conditions and varies with the salt tolerance level of plants. | |
| dc.description | This project has received funding from the European Union’s Horizon 2020 Research and Innovation Program under the Marie Skłodowska–Curie grant agreement number 722642 (project INTERFUTURE) and 797028 (project Rhizotalk). | |
| dc.language | eng | |
| dc.publisher | MDPI | |
| dc.relation | Reproducció del document publicat a https://doi.org/10.3390/microorganisms9091861 | |
| dc.relation | Microorganisms, 2021, vol. 9, num. 9, p. 1861 | |
| dc.relation | info:eu-repo/grantAgreement/EC/H2020/722642/EU/INTERFUTURE | |
| dc.relation | info:eu-repo/grantAgreement/EC/H2020/797028/EU/RhizoTalk | |
| dc.rights | cc-by (c) Muhammad Aammar Tufail et al., 2021 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Antioxidant system | |
| dc.subject | Meta-analysis | |
| dc.subject | Osmoregulation | |
| dc.subject | Photosynthetic capacity | |
| dc.subject | Plant growth-promoting endophytic bacteria | |
| dc.subject | Salinity stress | |
| dc.title | Can Bacterial Endophytes Be Used as a Promising Bio-Inoculant for the Mitigation of Salinity Stress in Crop Plants?—A Global Meta-Analysis of the Last Decade (2011–2020) | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/publishedVersion |
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