Accession Number : AD0781058

Title :   The Effect of Environment on the Free and Hydrosoluble Sterols of 'Mucor rouxii,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA HALIFAX (NOVA SCOTIA) ATLANTIC REGIONAL LAB

Personal Author(s) : Safe,S.

Report Date : 07 AUG 1973

Pagination or Media Count : 6

Abstract : Examination of the sterols produced by Mucor rouxii showed significant variations in the relative amounts of free (i.e. lipid extractable) and bound sterols contained in the aerobic and anaerobic cells. The filamentous aerobic cells contained primarily free sterols with only small amounts of the bound material. The reverse situation was true for the yeast-like anaerobic cells in which over 75% of the total sterols were bound and were released only after treatment with methanolic KOH solution. Extensive examination of the sterol fractions revealed a number of different sterols present; in the aerobic cells ergosterol was the main sterol (approx. 85%) but in the anaerobic cells (i.e. oxygen limiting) the concentration of this component was considerable diminished (36.5%) with increased amounts of ergosta-5,7,24(28)-trien-3 beta-ol (37.0%), ergosta-5,7-dien-3 beta-ol and ergosta-7,22,24(28)-trien-3 beta-ol present. (Modified author abstract)

Descriptors :   *Fungi, *Steroids, Cells(Biology), Biochemistry, Morphology(Biology), Environments, Canada

Subject Categories : Biochemistry
      Microbiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE