extremely significantp < 0.0001
For plipastatins, this effect compared with that of the control without lipopeptide was statistically significant ( p = 0.0023, using the Dunn's multiple comparison test) for 300 mg.L −1 of the sample and extremely significant ( p < 0.0001) for the higher concentration (500 mg.L −1 ) of plipastatins.