Phosphorus-solubilizing bacteria isolated from the rhizosphere of wild potato Solanum bulbocastanum enhance growth of modern potato varieties

Abstract Background Wild potato species harbor a distinctive rhizosphere microbiome relative to their modern counterparts, thus providing competitive advantage for acquiring phosphorus (P) in native habitats. Despite this, the effects of transferring phosphorus-solubilizing bacteria (PSB), recruited from wild potatoes rhizosphere, on varieties’ performance has not been investigated. Here, it was hypothesized that PSB isolated could enhance plant growth and solubilization various P forms when co-inoculated with commercial ( Solanum tuberosum ). Results To test this hypothesis, three Enterobacter cloacae , Bacillus thuringiensis Pseudomonas pseudoalcaligenes were bulbocastanum grown under greenhouse conditions characterized P-solubilizing activities. It found both individual bacterial consortium bacteria, dissolved organic (i.e., phytin) inorganic calcium phosphate) vitro. The increased by 36-fold phosphate sixfold phytin compared sterile control surpassed effect each strain. further evaluate use efficiency, cultivar amended separately phytin, phosphate, fertilizer, or combination sources. results showed an overall increase total dry biomass shoot content treatments PSB. Conclusions Our findings indicate inoculated varieties have potential yield nutrient uptake.