Bar graphs showing Rab3GAPL expression (28.8%,n= 118 haustoria) or Rab3GAPLAIM expression (30.8%,n= 143 haustoria) significantly reduce the frequency of callose deposition around haustoria compared with EV control (51.1%,n= 92 haustoria), while Rab3GAPLCM expression (47.8%,n= 186 haustoria) has no significant effect compared with EV control. Statistical differences were analyzed by chi-squared test in R. Measurements were significant when p< 0.05 (*). Protein expression levels of GFP constructs are provided (Figure S6).