Microcin production by the yeast Cryptococcus humicola.
Cryptococcus humicola strains secrete killer toxins inhibitory (at pH values ranging from 3 to 5.5) to many ascomycetous and basidiomycetous yeast-like fungi. RNA or DNA plasmids were not detected in the killers. The amino acid-containing toxins were of low M(r), soluble in methanol, resistant to proteolysis, thermostable, cellophane-diffusible and were specified as microcins. These findings show that the killer phenomenon in yeasts such as bacteriocinogeny may be due to excretion of two types of killer toxins: mycocins and microcins.
All-Russian Collection of Microorganisms, Russian Academy of Sciences, Pushchino.
W
W
Golubev
Y
Y
Shabalin
D000900:Anti-Bacterial Agents / Q000096:biosynthesis*; D001430:Bacteriocins / Q000096:biosynthesis*; D003454:Cryptococcus / Q000378:metabolism*
D000900:Anti-Bacterial Agents; D001430:Bacteriocins; C020411:microcin