Document Detail


Capsulated cells of Aeromonas salmonicida grown in vitro have different functional properties than capsulated cells grown in vivo.
MedLine Citation:
PMID:  8590408     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
When grown in vivo in the peritoneal cavity of rainbow trout, Aeromonas salmonicida produces a clearly defined capsule with virulence-related functions. Aeromonas salmonicida grown in vitro in a glucose-rich medium (GRM) has also been reported to reproduce capsular material. Because in vitro mimicry of in vivo induced traits is highly desirable in vaccine design, the extent to which growth in GRM mimicked in vivo growth was examined. Antibodies specific to in vivo grown cells partially labeled the surface of GRM-grown cells, as well as two distinct proteins (81,700 and 41,000 Mr) in immunoblots of mutants with S-layer or lipopolysaccharide defects. GRM-grown strains showed an increased sensitivity to trout serum in contradistinction to the complete serum resistance of in vivo grown cells; as well, GRM-grown cells were more adherent to trout macrophages. Thus in spite of possessing some surface antigens normally expressed in vivo, cells grown on solid GRM did not possess all functional properties of in vivo grown cells.
Authors:
R A Garduño; W W Kay
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Canadian journal of microbiology     Volume:  41     ISSN:  0008-4166     ISO Abbreviation:  Can. J. Microbiol.     Publication Date:  1995 Oct 
Date Detail:
Created Date:  1996-03-25     Completed Date:  1996-03-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0372707     Medline TA:  Can J Microbiol     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  941-5     Citation Subset:  IM    
Affiliation:
Department of Biochemistry and Microbiology, University of Victoria, BC, Canada.
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MeSH Terms
Descriptor/Qualifier:
Aeromonas / growth & development*,  immunology,  physiology
Animals
Bacterial Adhesion
Bacterial Capsules / biosynthesis,  immunology,  physiology*
Blood Bactericidal Activity
Culture Media
Immunoblotting
Immunohistochemistry
Macrophages / microbiology
Oncorhynchus mykiss / blood,  microbiology
Chemical
Reg. No./Substance:
0/Bacterial Capsules; 0/Culture Media

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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