The CMMs can be divided into two groups (R1 type and R2 type) according to their colony morphology on PSA, and they lose or have reduced virulence on seedlings and spikelets (Tsushima et al. 1991).
TheCMMs can be divided into two groups (R1 type and R2type) according to their colony morphology on PSA, andthey lose or have reduced virulence on seedlings andspikelets (Tsushima et al. 1991).