| The relationship between glycogen synthesis, biofilm formation and virulence in salmonella enteritidis. | |
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MedLine Citation:
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PMID: 11004396 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Salmonella enteritidis accumulated large quantities of intracellular polysaccharide when grown in unrestricted nutrient conditions. Dense, abundant cytoplasmic granules were observed by electron microscopy in sections stained by the periodic acid-chlorite technique, indicating that the polysaccharide was of the glycogen type. When biofilm-producing S. enteritidis was pre-incubated in media containing increasing levels of glucose concentration, the levels of both cytoplasmic glycogen and biofilm rose correlatively to a point where a ceiling effect was observed. Studies carried out with activators and inhibitors of glycogen biosynthesis confirmed that biofilm was formed from glycogen cell stores. On the other hand, the virulence of the biofilm-producing strain in infected chickens increased proportionally to the amount of stored glycogen, suggesting a possible role of the glycogen depot in the virulence of S. enteritidis. |
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Authors:
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M A Bonafonte; C Solano; B Sesma; M Alvarez; L Montuenga; D García-Ros; C Gamazo |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: FEMS microbiology letters Volume: 191 ISSN: 0378-1097 ISO Abbreviation: FEMS Microbiol. Lett. Publication Date: 2000 Oct |
Date Detail:
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Created Date: 2000-12-01 Completed Date: 2000-12-01 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7705721 Medline TA: FEMS Microbiol Lett Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 31-6 Citation Subset: IM |
Affiliation:
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Departamento de Microbiologia, Universidad de Navarra, Pamplona, Spain. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Biofilms / growth & development* Chickens Glucose / metabolism Glycogen / biosynthesis* Microscopy, Electron Poultry Diseases / microbiology Salmonella Infections, Animal / microbiology Salmonella enteritidis / growth & development, metabolism*, pathogenicity* Virulence |
| Chemical | |
Reg. No./Substance:
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50-99-7/Glucose; 9005-79-2/Glycogen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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