Inhibitory Effect of Taurine on Biofilm Formation During Alkane Degradation in Acinetobacter oleivorans DR1

摘要: Taurine, 2-aminoethanesulfonate, is known to function as an antioxidant or membrane stabilizer in eukaryotic cells, but its role bacteria has been poorly characterized. Biofilm formation of Acinetobacter oleivorans DR1 was significantly reduced by taurine only during alkane degradation, suggesting that affects alkane-induced cell surface. Structurally similar compounds harboring amine group such hypotaurine ethylenediamine have a effect, which not observed with sulfonate-containing chemicals ethanesulfonic acid, hexanesulfonic acid. Our biochemical assays and physiological tests demonstrate surface hydrophobicity, resulted interruption the interactions between cells oily substrate surfaces, utilized alkanes less effectively. Interestingly, taurine-mediated reduction quorum sensing (QS) signal production QS-control sapA gene expression indicated permeability signals also interfered taurine. Composition biomass extracellular polymeric saccharides were changed taurine-amended conditions. Taken together, our data provide evidence amine-containing can inhibit biofilm degradation (i) changing charge (ii) reducing hydrophobicity QS sensing.