Influence of silicon (Si) application (A), Cochliobolus miyabeanus infection (B) and combined Si and C. miyabeanus treatment (C) on the expression of genes involved in central carbon/nitrogen (C/N) metabolism. Arrows in red and green indicate down‐ and up‐regulation of gene expression, respectively. AMT, ammonium transporter; CLC1, nitrate transporter; NRT, nitrate transporter; GDC, glycine dehydrogenase; GGAT, glutamate:glyoxylate aminotransferase; GOX, glycolate oxidase; GS, glutamine synthetase; NADH‐ or Fd‐GOGAT, NADH‐ or Ferredoxin‐dependent glutamate synthase; NiR, nitrite reductase; NR, nitrate reductase; PGK, phosphoglycerate kinase; PGLP, phosphoglycolate phosphatase; PLGG, plastidic glycolate/glycerate translocator; PRK, phosphoribulokinase; RPI, ribose‐5‐phosphate isomerase; RuBisCo, ribulose‐1,5‐bisphosphate carboxylase/oxygenase; SGAT, serine:glyoxylate aminotransferase; SHMT, serine hydroxymethyltransferase.