In general, the G-protein mutants showed a substantial reduction in all examined JA-related gene (LOX1, LOX2, CORI3 and AOS) expressions at both 12 and 24 hpi in response to nonhost pathogen infections, except LOX1 that was markedly induced at 12 hpi in agg1-1c agg2-1 mutant. This evidence concerns the gene ARHGAP31 and infection.