Are native phosphate solubilizing bacteria a relevant alternative to mineral fertilizations for crops? Part I. when rhizobacteria meet plant P requirements.

Deployment of Phosphate Solubilizing Bacteria (PSB) can enhance plant P uptake through remobilization recalcitrant forms in soil. In this study, bacterial strains isolated the rhizospheric soil rapeseed, winter pea and faba bean, with various requirements, were screened for their PSB potential characterization several interesting traits linked to solubilization. parallel, other Plant Growth Promoting Rhizobacteria (PGPR) interest (indole-3-acetic acid (IAA) production or 1-aminocyclopropane-1-carboxylic (ACC) deaminase activity) also determined each isolate. An abundant proportion successfully emphasized, mainly belonging Pseudomonas Bacillus genera. The present study reveals first time phosphate solubilization an isolate species Sanguibacter inulinus. Interestingly, from rapeseed showed higher efficiency compared those bean rhizosphere. These results highlighted great influence shape associated microbiome order fit specific requirement. Two distinct profiles isolates could be highlighted, deploying either direct indirect processes. Plants seemed preferentially enrich populations presenting complementary characteristics own arsenal favor nutrition. Valuing native potential, artificial addition legacy previous crop further culture represent a promising alternative sustain growth P-deprived situation.