Selected Rhizosphere Bacteria Help Tomato Plants Cope with Combined Phosphorus and Salt Stresses

• DOI: 10.3390/microorganisms8111844
• Publication Date: 2020-11-23T16:50:34Z
• Authors: Gylaine Vanissa T...; Beatrice Berger; Sascha Patz; Matthias Becker; Henri Fankem; Victor Désiré Taf...; Silke Ruppel
• Keywords: Halotolerance; Arthrobacter

Plants are often challenged by multiple abiotic stresses simultaneously. The inoculation of beneficial bacteria is known to enhance plant growth under these stresses, such as phosphorus starvation or salt stress. Here, for the first time, we assessed efficiency selected bacterial strains in improving tomato better cope with double salty and P-deficient soil conditions. Six Arthrobacter Bacillus different reservoirs growth-promoting traits were tested vitro their abilities tolerate 2–16% (w/v) NaCl concentrations, shown retain motility phosphate-solubilizing capacity stress Whether promote combined P was investigated greenhouse experiments. Bacterial isolates from Cameroonian soils mobilized phosphate sources shaking culture both non-saline saline They also enhanced salt-affected 47–115%, PGP effect even increased higher results provide valuable information prospective production effective bio-fertilizers based on application local rock halotolerant bacteria. This constitutes a promising strategy improve soils.