Spathaspora passalidarum cultivated under fully aerobic conditions. Cells were cultivated at 30°C in 2,000 ml of defined minimal medium (CBS) with glucose (A), xylose (B), or a 50:50 mixture of the two sugars (C). Cultures were aerated with 1 vvm air and an agitation rate of 700 rpm. Symbols: open triangles, glucose; solid squares, xylose; circles, cell mass; diamonds, ethanol.