| Comparison of survival of Campylobacter jejuni in the phyllosphere with that in the rhizosphere of spinach and radish plants. | |
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MedLine Citation:
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PMID: 14766604 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Campylobacter jejuni has been isolated previously from market produce and has caused gastroenteritis outbreaks linked to produce. We have tested the ability of this human pathogen to utilize organic compounds that are present in leaf and root exudates and to survive in the plant environment under various conditions. Carbon utilization profiles revealed that C. jejuni can utilize many organic acids and amino acids available on leaves and roots. Despite the presence of suitable substrates in the phyllosphere and the rhizosphere, C. jejuni was unable to grow on lettuce and spinach leaves and on spinach and radish roots of plants incubated at 33 degrees C, a temperature that is conducive to its growth in vitro. However, C. jejuni was cultured from radish roots and from the spinach rhizosphere for at least 23 and 28 days, respectively, at 10 degrees C. This enteric pathogen also persisted in the rhizosphere of spinach for prolonged periods of time at 16 degrees C, a temperature at which many cool-season crops are grown. The decline rate constants of C. jejuni populations in the spinach and radish rhizosphere were 10- and 6-fold lower, respectively, than on healthy spinach leaves at 10 degrees C. The enhanced survival of C. jejuni in soil and in the rhizosphere may be a significant factor in its contamination cycle in the environment and may be associated with the sporadic C. jejuni incidence and campylobacteriosis outbreaks linked to produce. |
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Authors:
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Maria T Brandl; Aileen F Haxo; Anna H Bates; Robert E Mandrell |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Applied and environmental microbiology Volume: 70 ISSN: 0099-2240 ISO Abbreviation: Appl. Environ. Microbiol. Publication Date: 2004 Feb |
Date Detail:
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Created Date: 2004-02-09 Completed Date: 2004-06-04 Revised Date: 2010-09-20 |
Medline Journal Info:
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Nlm Unique ID: 7605801 Medline TA: Appl Environ Microbiol Country: United States |
Other Details:
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Languages: eng Pagination: 1182-9 Citation Subset: IM |
Affiliation:
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Produce Safety and Microbiology Research Unit, Agricultural Research Service, U.S. Department of Agriculture, Albany, California 94710, USA. mbrandl@pw.usda.gov |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Campylobacter jejuni / growth & development*, isolation & purification Carbon / metabolism Humans Plant Leaves / microbiology* Plant Roots / microbiology Raphanus / microbiology* Soil Microbiology* Spinacia oleracea / microbiology* |
| Chemical | |
Reg. No./Substance:
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7440-44-0/Carbon |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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