VEGETATIVE INCOMPATIBILITY AND MYCELIAL DEATH OF CRYPHONECTRIA-PARASITICA DETECTED WITH A PH INDICATOR

Incorporation of the pH indicator bromocresol green in medium makes my celial cell death easier to detect and makes it easier to recognize we akly barraging vegetatively incompatible strains of Cryphonectria para sitica. It also aides in detection of cell death caused by antimicrobi al agents and mechanical injury. The method should be applicable to ot her fungi which have the capacity to lower the pH of their medium.