ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Mannans of the Cell Walls of the Yeast and Mycelial Forms of Candida tropicalis

L. Masler, G. Kogan, V. Šimkovicová, and J. Šandula

Institute of Chemistry, Slovak Academy of Sciences, CS-842 38 Bratislava

Abstract: Yeast-mycelium dimorphism of Candida tropicalis is followed with the quantitative changes in the chemical composition of the cell wall. The mycelial form contains twofold amount of the lipids and the increased amount of amino sugars and glucans in comparison with the yeast form of the microorganism. The contents of the cellular mannans and glucans are significantly different in these two morphological forms. Both mannans, however, have very similar structure with the α-(1 --> 6)-glycosidically linked backbone, the sugar units of which are substituted in position 2 with the oligomannosidic side chains linked through α-(1 --> 2)-glycosidic bonds. The mannan of the yeast form possesses relatively more longer side chains and contains unusual branching point in some side chains, i.e. the mannosyl unit disubstituted in positions 2 and 3.

Full paper in Portable Document Format: 472a127.pdf

Chemical Papers 47 (2) 127–131 (1993)