Abstract
Several reports have shown that various rhizobia can interact with non-hosted plant species, enhancing mineral nutrition and promoting plant growth. To further investigate the effects of such non-host interactions on plant growth and phosphate nutrition, we inoculated Arabidopsis thaliana with the model rhizobacterium Pseudomonas fluorescens at three phosphate concentrations in the nutrient medium. In vitro, we showed that root colonization by Pseudomonas fluorescens contributes to an increase in the amount of available phosphate that is important in plant growth, especially in the shoots, in all concentrations used in the study. In addition to improving plant growth as well as increasing plant biomass production.
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