Document Detail

Effect of iron limitation on the growth and cytotoxin production of Salmonella choleraesuis SC-5.
MedLine Citation:
PMID:  14751684     Owner:  NLM     Status:  MEDLINE    
This study investigated the effect of iron limitation on the growth and cytotoxin production of Salmonella choleraesuis and examined the iron-accruing capability of various Salmonella strains. It was found that the growth of S. choleraesuis SC-5 was retarded by the presence of iron-chelating agents, 2,2'-dipyridyl or ethylenediamine di-o-hydroxyphenylactic acid (EDDA). Addition of 2,2'-dipyridyl to Trypticase soy broth (TSB) resulted in a smaller maximum population of S. choleraesuis noted at the stationary phase, while addition of EDDA in TSB only caused an extended period of lag phase. A significant increase in cytotoxin production was found when S. choleraesuis SC-5 was cultured in iron-limited TSB containing 2,2'-dipyridyl. On the other hand, pre-culture in an iron-limited medium increased the growth of S. choleraesuis SC-5 in mouse serum with or without complement inactivated. Testing with a plate assay method revealed that the ability and efficiency of Salmonella to acquire iron under iron-limited condition varied with strains, and the kinds and dosages of iron-containing compounds present.
Wei-Li Ho; Roch-Chui Yu; Cheng-Chun Chou
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of food microbiology     Volume:  90     ISSN:  0168-1605     ISO Abbreviation:  Int. J. Food Microbiol.     Publication Date:  2004 Feb 
Date Detail:
Created Date:  2004-01-30     Completed Date:  2004-04-23     Revised Date:  2009-11-03    
Medline Journal Info:
Nlm Unique ID:  8412849     Medline TA:  Int J Food Microbiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  295-302     Citation Subset:  IM    
Department of Food Science, Ching Kuo Institute of Management and Health, Keelung, Taiwan.
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MeSH Terms
2,2'-Dipyridyl / pharmacology
Culture Media / chemistry
Cytotoxins / biosynthesis*
Edetic Acid / analogs & derivatives*,  pharmacology
Food Preservation
Iron / metabolism*,  pharmacology
Iron Chelating Agents / pharmacology*
Salmonella / growth & development*,  metabolism*
Species Specificity
Reg. No./Substance:
0/Culture Media; 0/Cytotoxins; 0/Iron Chelating Agents; 366-18-7/2,2'-Dipyridyl; 5657-17-0/EDDA; 60-00-4/Edetic Acid; 7439-89-6/Iron

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