ZFP36L2 and infection: Supporting this, it was found that although both these pathogenicity genes are up-regulated in TAG5 and ZG14, the level of expression was significantly higher in the moderately resistant host and this increased expression could be attributed to ERF2. JA is another signaling pathway that has been implicated in necrotrophic defence, however we did not observe an increase of this phytohormone at the metabolite level following infection until 7 dpi.