Accession Number : AD0723997

Title :   Systematics of the genus Torulopsis: Proton Magnetic Resonance Spectra of the Mannose-Containing Polysaccharides as an Aid in Classification,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA SASKATOON (SASKATCHEWAN) PRAIRIE REGIONAL LAB

Personal Author(s) : Spencer,J. F. T. ; Gorin,P. A. J.

Report Date : 01 JUN 1970

Pagination or Media Count : 20

Abstract : The proton magnetic resonance spectra of the mannose-containing polysaccharides of 42 Torulopsis species were determined and used as a basis for placing these species in seven groups. Five of the groups consisted of species which formed mannose-containing polysaccharides with spectra whose H-1 regions were like those of the mannans and galactomannans of species of Saccharomyces, Pichia, Hansenula, Debaryomyces or Metschnikowia. The sixth group consisted of Torulopsis bombicola, Torulopsis apicola and a number of other yeasts which were mostly sugar- and salt-tolerant. The seventh group consisted of species whose mannose-containing polysaccharides had spectra unlike those in the preceding groups. Some of the spectra had similarities to those of the mannose-containing polysaccharides of a miscellany of yeast species. (Author)

Descriptors :   (*NUCLEAR MAGNETIC RESONANCE, *POLYSACCHARIDES), (*YEASTS, POLYSACCHARIDES), IDENTIFICATION, CHEMICAL ANALYSIS, CANADA

Subject Categories : Biochemistry
      Microbiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE