Wi. Golubev et al., MYCOCINOGENY IN THE GENUS BULLERA - ANTI-TREMELLACEOUS YEAST ACTIVITYOF KILLER TOXIN PRODUCED BY BULLERA-HANNAE, Journal of General and Applied Microbiology, 42(6), 1996, pp. 471-479
The type strain of Bullera hannae produces a thermolabile protease-sen
sitive fungicidal toxin that was specified as mycocin. This killer tox
in did not act against ascomycetous, sporidiobolaceous and ustilaginac
eous yeasts. Its killing pattern is restricted to tremellaceous yeasts
and includes the species of Fibulobasidium, Filobasidium, Holtermanni
a, Sirobasidium, Trimorphomyces, and Tsuchiyaea. The members of the ge
nera Bulleromyces, Cystofilobasidium, Mrakia, Sterigmatosporidium, and
Xanthophyllomyces were insensitive to this mycocin. The anamorphic ge
nera Bullera, Cryptococcus, Fellomyces, Kockovaella, Trichosporon, and
Udeniomyces were heterogeneous in this respect. The taxonomic signifi
cance of the sensitivity to the mycocin of B. hannae is discussed.