Table 1.

Phenotypic comparison of wild-type S. virginiae, a vmsR disruptant, and a wild-type segregant

StrainVM productiona (μg/ml)Resistance (MIC, μg/ml)VB productionb (nM)VB binding activityc (pmol/mg of protein)Sporulation
Wild type863003003900.44+
Wild-type segregant873003003700.46+
  • a VM production was determined after 24 h of cultivation.

  • b VB production was determined after 12 h of cultivation.

  • c VB binding activity was determined for 12-h mycelia.