Fig. 8From: Heterologous production and characterization of a pyomelanin of Antarctic Pseudomonas sp. ANT_H4: a metabolite protecting against UV and free radicals, interacting with iron from minerals and exhibiting priming properties toward plant hairy rootsFree oleanolic acid produced by hairy root tissue. Error bars represent standard deviations of the triplicates. *—mean statistical significance p < 0.05Back to article page