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. 2022 May 31;10:e13405. doi: 10.7717/peerj.13405

Table 2. Macroelement solubilization and activity of rhizobacteria in tomato and other crop plant rhizosphere.

Macroelements Tomato /Crop plants Bacteria Effect Reference
Nitrogen Beans (Phaseolus vulgaris) and okra (Abelmoschus esculentus) Pseudomonas alcaliphila, Pseudomonas hunanensis, Streptomyces laurentii, Sinorhizobium sp., and Bacillus safensis The bacteria significantly promoted the growth of the root of beans (Phaseolus vulgaris L) and can be used to manufacture biofertilizer AlAli, Khalifa & Al-Malki (2021)
Potassium Tomato (Solanum lycopersicum) Enterobacter hormaechei (MF957335) These bacteria are potassium solubilizing bacteria. They are great use for plant growth under saline condition, thereby contributing to the growth of the tomato plant and root elongation as a result of potassium fixation. Ranawat, Mishra & Singh (2021)
Magnesium Rice (Oryzae sativa) Alcaligenes species This bacteria displayed attributes at a different level of magnesium salt concentration which favors rice growth. Fatima et al. (2020)
Iron Chickpea (Cicer arietinum) Azotobacter chroococcum (AU-1), Bacillus subtilis (AU-2), Pseudomonas aeruginosa (AU-3), and Bacillus pumilis (AU-4) These rhizobacteria showed plant growth-promoting characters and iron chelating siderophores, allowing promotion of the development and production of chickpea plants under normal conditions. Pandey, Gupta & Ramawat (2019)
Sodium Barley (Hordeum vulgare L.) Bacillus mojavensis S1, B. pumilus S2, and Pseudomonas fluorescens S3 Sodium concentrations promoted leaf water ability, and the strain S1 kept it in line to attribute ideas Mahmoud et al. (2020)
Phosphorus Tomato (Solanum lycopersicum) Bacillus safensis B23, Bacillus aryabhattai B29, Bacillus subtilis B18, Bacillus subtilis B25, Pseudomonas moraviensis B6 and Bacillus simplex B19 The rhizobacteria solubilized phosphate and further improve tomato plant growth Cochard et al. (2022)
Sulfur Tomato (Solanum lycopersicum), Orange (Citrus sinensis) Bacillus, Klebsiella, Pseudomonas, Azobacter, Enterobacter, Serratia, Variovorax, and Azospirillum The rhizobacteria play an essential duty in sulfur cycling, thereby increasing the production of tomatoes. Rai et al. (2020)