Three Hevea genotypes with contrasting resistances to SALB presented different behaviours in ROS regulation.
Basal expression levels of HbRBOHA (low), HbCAT (low) and HbDHAR (high) indicated a balanced cellular redox state in MDF180.
Pseudocercospora ulei infection induced a permanent up-regulation of the WRKY2 expression level in MDF180.
In FX2784, up-regulation of HbRBOHD expression level and down-regulation of HbCAT indicated an oxidative burst at 48 hpi.
In FX2784, signalisation (HbWRKY2), enzymatic ROS (HbGPX) and non-enzymatic ROS (HbGCL) elimination were also regulated at 48 hpi.
In PB314, HbRBOHC, HbCuZnSOD cyto and HbCAT expression levels strengthened histo- and cytological observations at 216 hpi.