Induction of Two Pseudomonas Strains Indole Acetic Acid Production by Synthetic and Biologically-Produced L-Tryptophan: a Comparative Study

Amino acids, serving as fundamental building blocks of proteins, can also act as inducers in essential metabolic pathways across various microorganisms. The metabolic effects of synthetic and biologically produced amino acid L-tryptophan on two Pseudomonas strains – Pseudomonas chlororaphis 1S4 and Pseudomonas yamanorum 1046 were compared in this study. Both strains belong to the plant growth-pro¬moting rhizobacteria. The inducers impacted the production of the primary auxin phytohormone in the plant kingdom, the indole-3-acetic acid. The biologically produced L-tryptophan exerted a more pronounced positive effect on its production in both strains, increasing the process efficiency.