Figure 6: Effects of salinity on the stability of the emulsification capacity of bacterial cell-free culture from wild-type and mutant (587::TnphoA24, 587::TnphoA31, 587::TnphoA33 and 587::TnphoA50) strains of Bradyrhizobium elkanii. All data points are the means ± SD of three different experiments performed on different days (each experiment was conducted in triplicate).