[Effect of temperature on Candida utilis morphology and growth rate under limited and unlimited cultivation...

The effect of temperature on the growth rate, morphology and ultrastructure of the yeast Candida utilis was studied under the conditions of turbidostat and chemostat. The mean size of the yeast cell was found to increase at suboptimal and supraoptimal temperatures while the quantity of membranous structures was shown to decrease under the same conditions. The mean size of cells grown under the conditions of turbidostat was much greater than that of cells grown under the conditions limited with glucose. The mechanisms involved in morphocytological changes at suboptimal and supraoptimal temperatures appear to be different.