Assessment of egg wash-induced cell death
Egg wash-induced HR-like cell death was scored as “HR severity” on a
scale from 0 to 4 as previously described (Caarls et al., 2023): 0, no
visible response; 1, brown spots underneath egg wash-treated spot, only
visible at abaxial side leaf; 2, cell death also visible at adaxial side
of leaf, spot smaller than 2 mm diameter; 3; cell death covering the
size of the egg wash-treated spot; 4, cell death spreading lesion beyond
the treated spot.