Figure 4: Identification and characterization of individual VOCs affecting E. coli phenotypes.
From: Interspecific bacterial sensing through airborne signals modulates locomotion and drug resistance
Effect of individual VOCs on (a) swarming motility and (b) ampicillin resistance in E. coli MG1655 and BW25113 (n=3, P=0.05). The antibiotic resistance phenotype was expressed as the survival ratio of VOC-treated and VOC-untreated E. coli grown on ampicillin. Control represents no VOC treatment. Determination of effective concentration of individual VOCs by (c) natural vaporization (gaseous phase) or by (d) direct addition (aqueous phase). Asterisks (*) indicate statistically significant data (P=0.05) and arrowheads indicate individual VOCs that show the same phenotype as total VOCs in both BW25113 and MG1655 cells. Error bars are defined as s.e.m.
