CAT and infection: In our study, many genes with predicted peroxidase activity (e.g., catalase) were found upregulated (Figure 3, Table 1, and Supplementary Table S4) during the pathogen Ggt’s infection of wheat roots, a result that agrees with previous reports (Govrin and Levine, 2000; Singh et al., 2012; Bao et al., 2014).