Acid treatment of the cell-wall D-mannas of Candida stellatoidea strains ATCC 36232 (Type I, A3 strain) and ATCC 20408 (Type II, A2 strain) gave (1----2)-linked beta-D-manno-oligosaccharides (dp 2-5), whereas treatment with alkali gave the (1----2)-linked alpha-D-mannobiose. Conventional acetolysis
Structure of the d-mannan of Candida stellatoidea IFO 1397 strain. Comparison with that of the phospho-d-mannan of Candida albicans NIH B-792 strain
โ Scribed by Minehiro Tojo; Nobuyuki Shibata; Yohko Ban; Shigeo Suzuki
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 776 KB
- Volume
- 199
- Category
- Article
- ISSN
- 0008-6215
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โฆ Synopsis
The structure of the D-mannan of Candida stellatoidea IFO 1397 strain, which has properties identical to those of the phospho-D-mannan of C. albicans serotype B strain, does not contain phosphate groups, and its 1H- and 13C-n.m.r. spectra are quite similar to those of the phospho-D-mannan of C. albicans NIH B-792 strain. However, the 1H-n.m.r. and 1H-13C-correlation n.m.r. spectra of the products obtained by digestion with alpha-D-mannosidase of C. stellatoidea D-mannan considerably differed from those of the corresponding digestion products of the C. albicans phospho-D-mannan. Additionally, the enzyme-linked immunosorbent assay, by means of a monoclonal antibody corresponding to (1----2)-linked beta-D-oligomannosyl residues, of the phospho-D-mannan of the same C. albicans strain indicated that the C. stellatoidea D-mannan does not contain any (1----2)-linked beta-D-oligomannosyl residues. The absence of these residues may be used as one of the criteria of chemotaxonomical identification of C. stellatoidea spp.
๐ SIMILAR VOLUMES
The immunochemical properties between phospho-D-mannan-protein complexes of yeast (Y) and mycelial (M) forms of Candida ulbicans NIH A-207 (serotype A) strain were compared. Hydrolysis of the Y-form complex gave a mixture of P-(1+2)-linked D-mannooligosaccharides consisting mainly of tri-and tetra-o