Fig. 5

Graphical representation of dry pellet weight of three distinct Methylobacterium strains when cultured in tryptic soy broth (TSB) containing a fixed quantity of pure glyphosate (0.1% w/v) in relation to changes in the presence of Tween20 (polysorbate-20), relative to controls containing Tween20 alone (n = 4). The Student’s t-test was used to assess statistical difference between groups. A star (*) indicates statistical difference in pellet weight between control conditions (TSB only) and following the application of a treatment (p < 0.05 = *, p < 0.01 = **, p < 0.001 = ***). A dagger (†) indicates statistical difference comparing pellet weight between the application of Tween20 and the corresponding application of Tween20 with the addition of glyphosate (p < 0.05 = †, p < 0.01 = ††, p < 0.001 = †††)