Document Detail

Toxin production by bacterial endosymbionts of a Rhizopus microsporus strain used for tempe/sufu processing.
MedLine Citation:
PMID:  19942312     Owner:  NLM     Status:  MEDLINE    
Mould fungi are not only well known for food spoilage through toxin formation but also for the production of fermented foods. In Asian countries, the fermentation of soy beans and tofu for tempe and sufu production with various Rhizopus strains is widespread. Here we report the finding of toxinogenic bacteria in a starter culture used for sufu production. By means of metabolic profiling of the fungus under standard conditions for tempe and sufu production, we found that toxins of the rhizoxin complex are produced in critical amounts. Considering that rhizoxins are severe toxins with strong antimitotic activity it is important to notice that our findings uncover a health-threatening symbiosis in food processing. A simple PCR method for detecting toxinogenic endofungal bacteria in starter cultures is proposed.
Barbara Rohm; Kirstin Scherlach; Nadine M?bius; Laila P Partida-Martinez; Christian Hertweck
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-10-19
Journal Detail:
Title:  International journal of food microbiology     Volume:  136     ISSN:  1879-3460     ISO Abbreviation:  Int. J. Food Microbiol.     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-01-19     Completed Date:  2010-03-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8412849     Medline TA:  Int J Food Microbiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  368-71     Citation Subset:  IM    
Copyright Information:
2009 Elsevier B.V. All rights reserved.
Leibniz Institute for Natural Product Research and Infection Biology (HKI), Dept. of Biomolecular Chemistry, Beutenbergstr. 11a, 07745 Jena, Germany.
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MeSH Terms
Burkholderia / growth & development,  metabolism*
Food Microbiology*
Macrolides / metabolism
Mycotoxins / metabolism*
Rhizopus / growth & development*,  metabolism
Soybeans / microbiology*
Reg. No./Substance:
0/Macrolides; 0/Mycotoxins; 90996-54-6/rhizoxin

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