Tryptone

Tryptone is a peptide-rich bacterial culture medium component that can regulate bacterial cell surface proteins and biofilm-related genes. Tryptone promotes the expression and assembly of bacterial adhesion proteins (such as LapA and LapF) by providing peptide substances as structural factors, enhancing cell surface hydrophobicity and intercellular adhesion, thereby stabilizing the biofilm matrix and supporting the maturation and maintenance of bacterial biofilms. The peptide mixture contained in Tryptone can specifically regulate the transcription of bacterial adhesion-related genes (such as activating LapA and inhibiting LapF), affecting the synthesis and localization of biofilm structural proteins[1][2].