3.2.4
Killer activity
Film yeast strains were tested for killer acitivity in YPD-MB medium and a bluish coloured zone of dead sensitivity yeast strains was apparent surrounding
killer yeast (Fig. 1). All of film yeasts showed killer activity to 5 sensitive yeast strains (C. tropicalis TISTR 5045, Hansenula anomala TISTR 5113, S. cerevisiae TISTR 5020, S. cerevisiae TISTR 5055 and Torulopsis glabrata TISTR 5241). The results in this study indicated that killer toxin produced by film yeasts. It may have some advantages to controlling growth of pathogenic yeast or bacteria in the future.