Figure 4

The S. cerevisiae deletion strains annotated as involved in the sulfate metabolic pathway and its regulation are enriched in the Sbb and quality lists. (a) Schematic representation of the sulfate metabolic pathway. APS: Adenosine phosphosulfate; PAPS: Phosphoadenosine phosphosulfate; SAM; S-adenosyl-L-methionine; Met: Methionine; Hcy: Homocystein. (b) The detailed fitness effect of each gene deletion in relation to the Sbb index of maple samples. SUL1 and SUL2 gene deletion strains present opposite fitness as they are low- and high-affinity sulfate transporter, respectively. Line represent the loess regression curve between the fitness and the Sbb index.