Fig. 8.

Model explaining the establishment of local hypoxia at the sites of Botrytis cinerea infection. Botrytis cinerea infection results in increased respiration, inducing hypoxic conditions that lead to subgroup VII of ETHYLENE RESPONSE FACTOR (ERF‐VII) stabilization and translocation to the nucleus. Here, these transcription factors induce the expression of genes required for hypoxia adaptation as well as, together with OCTADECANOID‐RESPONSIVE ARABIDOPSIS 59 (ORA59) (Kim et al., 2018) and other still nonidentified partners, genes involved in plant defence. Hypoxia may also influence the fate of oligogalacturonides (OGs), that are oxidized by OXOG in a reaction requiring molecular oxygen (Benedetti et al., 2018).