Fig. 3. Comparison of titers of the three amino acids tyrosine, proline, and glutamic acid that were influenced by symbiont presence.

Shown are free amino acid titers in the whole body (without elytrae in case of adults) of symbiotic and aposymbiotic O. surinamensis beetles. Red: aposymbiotic beetles, Blue: symbiotic beetles. The data distribution is visualized with violin plots and an additional horizontal line depicting the median. The FDR-orrected unpaired, two-sided Wilcoxon-rank-sum-tests: ns p > 0.05, *0.05 < p < 0.01, **p < 0.01.