TABLE 6.
Influence of inoculation with plant growth-promoting rhizobacteria (PGPRs) on Cd chelator and transporter gene expression (MT: metal transporter 1).
| Conditions | Plant | Genes | PGPR | Mechanisms | References |
| Hydroponic media | Triticum aestivum | Tatm20 | Azospirillum brasilense | Cd tolerance | Ghassemi and Mostajeran, 2018 |
| Hydroponics | Sarcosphaera coronaria | PCS, F-box | PGPR strains | Improved Cd tolerance and Cd transport | Jebara et al., 2018 |
| Hydroponic | Sedum alfredii | NRAMP, HMA family genes, ZIP | Endophytic bacterium | Improved C uptake, Regulated plant acquisition of essential nutrients | Pan et al., 2017 |
| Hydroponic | Sedum alfredii | NRAMP, HMA family genes, ZIP | Pseudomonas fluorescens | Cd uptake | Chen et al., 2017 |
| Growth chamber | Arabidopsis thaliana | IRT1, FIT1, FRO2 | Bacillus amyloliquefaciens | Enhancing uptake | Zhou et al., 2017 |
| Controlled conditions | Lycopersicon esculentum | 6MT, MT3, 5, MT1, MT7 | Burkholderia gladioli and Pseudomonas aeruginosa | Enhancing photosynthetic pigments and growth | Khanna et al., 2019 |
| Soil less pot s system | Cucumis melo L. | Fe (IRT1, FRO), NH4+ (AMT2), Pi (PHT1) | Enterobacter asburiae, Pseudomonas koreensis, Pseudomonas lini | Enhanced the yield of fruit | Murgese et al., 2020 |
| Green house experiment | Medicago sativa | NRAMP1 | Proteus sp., Pseudomonas sp., Ensifer meliloti | Remediate metal-contaminated soils | Raklami et al., 2019 |