Table 3.

Effect of Yeast Extract on Appressorium Formation of mac1 Suppressor Mutants of M. griseaa

StrainMating TypeNo AdditiveYeast Extract
Guy11MAT1-292.3 ± 2.9b0.0 ± 0.0
AFTH3MAT1-196.3 ± 2.362.0 ± 4.5
DA61MAT1-292.7 ± 3.190.0 ± 3.6
DA67MAT1-297.0 ± 1.790.0 ± 1.0
DA99MAT1-297.3 ± 1.292.7 ± 3.1
  • a Hydrophobic plastic coverslips (Fisher) were used for the assays.

  • b The percentage of germinated conidia that formed appressoria was quantitated after 24 hr. The mean and standard deviation were calculated using combined data of at least three replicates. One hundred germinated conidia were examined per replicate.