?Study of the plant growth-promoting capacity of Pseudomonas putida 1046 in a model plant system

Plant Growth Promoting Rhizobacteria (PGPR) represent a microbial community that exerts growth-promoting capabilities in plants by various mechanisms. Among the PGPR genera, Pseudomonas spp. deserves special attention. It is due to its characteristic traits, like production of phytohormones and siderophores, solubilization minerals phosphates, plant protection from biotic abiotic stress. These properties depend on microorganism counterpart. The use strains as bioinoculants must consider physiological economic aspects process, growth stimulating effect has be checked proved. This study aimed explore PGP capacity putida 1046 strain model system economically important corn culture ( Zea mays ). strain’s metabolic status germination was evaluated. Bacterial cultures, grown 16 h 48 h, were explored for treatment seeds at three experimental concentrations: 0.1, 0.2, 0.4%, monitoring their through indicators length radicle, coleoptile, number lateral roots. data obtained outline positive when applied 0.2% concentration. vitro with suspension resulted 22.87%–28.33% increase 35.96%–49.56% 5.41–16.67% High values vigour index (2125 2721 culture) also registered. ability produce siderophores hydroximate type exhibit phosphate solubilizing activity optimal parameters comprise application five days.