Amino acids, carboxylic acids and derivatives metabolized during in vitro growth of rice-infecting Pythium spp. A, B and C represent the profiles of P. inflatum, P. arrhenomanes and P. graminicola, respectively. Turbidimetrical measurements were executed 24 hpi. The experiment consisted of three replicate plates per treatment and was repeated in time (n ≥ 6). Only carbon sources with OD-values significantly different from the control-treatment are presented. Statistical analyses were performed using the Kruskal-Wallis non-parametric test in SPSS 21 (α = 0.05, P ≤ α).