Document Detail

Cyniclomyces guttulatus (Saccharomycopsis guttulata)--culture, ultrastructure and physiology.
MedLine Citation:
PMID:  3178189     Owner:  NLM     Status:  MEDLINE    
Organisms that form an essential extra inner lining of selected areas of the stomach mucosa occur in mice, rats and some other animals. The yeast Cyniclomyces guttulatus (Saccharomycopsis guttulata) was shown in this study to line the stomach of domestic and feral rabbits, guinea pigs, and chinchillas. The layer of yeast cells formed a loose barrier between lumen contents and mucosal surface. A rapid rate of multiplication in the stomach provided yeast cells that blended in with stomach lumen contents, passed through the gut, and were finally excreted in large numbers in fecal pellets. Ascospore formation occurred during passage through the large intestine. The layer of yeast cells lining the stomach had no evident salubrious nor deleterious effect on the animal. C. guttulatus grew rapidly from stomach contents or single fecal pellets in a new enriched semisolid medium. Growth was good at pH 1 through 8 on the solidified enriched medium. A very unusual characteristic of C. guttulatus is optimal growth at 38 degrees C, and growth at 42 degrees C, with failure to grow below 30 degrees C. TEM demonstrated a very thick, laminated cell wall which had a thick, filamentous external coating. There were mitochondria, polyribosomes, lipid droplets, and an unusually large central nucleus. The developing spore nucleus became extremely electron dense and encapsulated, along with condensed mitochondria, ribosomes, short membrane sections and other organelles, in a dense lamellar covering.
C H Zierdt; C Detlefson; J Muller; K S Waggie
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Antonie van Leeuwenhoek     Volume:  54     ISSN:  0003-6072     ISO Abbreviation:  Antonie Van Leeuwenhoek     Publication Date:  1988  
Date Detail:
Created Date:  1988-10-31     Completed Date:  1988-10-31     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0372625     Medline TA:  Antonie Van Leeuwenhoek     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  357-66     Citation Subset:  IM    
Clinical Pathology Department, National Institutes of Health, Bethesda, MD 20892.
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MeSH Terms
Culture Media
Guinea Pigs
Saccharomycetales / growth & development*
Saccharomycopsis / growth & development*,  physiology,  ultrastructure
Spores, Fungal / physiology
Reg. No./Substance:
0/Culture Media

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