ASSIMILATION OF VOLATILES FROM RIPE APPLES BY SPORIDIOBOLUS-SALMONICOLOR AND TILLETIOPSIS-WASHINGTONENSIS

Sporidiobolus salmonicolor ATCC 623 and Tilletiopsis washingtonensis N RRL Y-2555 grew on carbon resources provided as volatiles by ripe 'Gol den Delicious' apples. This ability was not correlated with the report ed natural habitats of the 21 species (26 strains) tested. Ethylene, t he major volatile produced, was not utilized but butyl acetate, hexyl acetate and hexyl-2-methyl-butanoate (identified by GC-MS) were. These yeasts also assimilated ethanol, butanol, hexanol (Tilletiopsis excep ted), acetate, propionate, butyrate and ethyl acetate at appropriately low concentrations. Ethanol and acetate aside, this is the first repo rt of such assimilations by any yeast.