[Comparative physiological studies of Candida spec. H and its mutant H 13 during nitrogen starvation]

With Candida spec. H and the mutant H13 during nitrogen starvation we studied the changes occurring in the macromolecular cell composition. In the absence of nitrogen, but in the presence of n-alkanes as carbon source, both the nucleic acid and protein levels of the dried yeasts rapidly decreased. At the same time carbohydrates and lipids were accumulated. Candida spec. H predominantly increased carbohydrate content, whereas the mutant accumulated significantly higher amounts of lipids. The main components of the cellular carbohydrates and the fatty acid content were analyzed, and the results were discussed.