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Characterization of food chain-derived Listeria monocytogenes and the role of Listeria genomic island (LGI1) in virulence, survival, and tolerance to food-related stress Kovacevic, Jovana
Abstract
The presence of Listeria spp. and L. monocytogenes (Lm) was investigated in provincially inspected food processing and retail facilities in British Columbia. Lm (n=56) was recovered in food processing environment (FPE) of dairy, meat and fish facilities, and in ready-to-eat fish products. The majority of Lm belonged to listeriosis causing serotypes 1/2a and 4b. Isolate fingerprinting revealed 14 sequence types, and 38 pulsotypes, with 66% of Lm possessing the full-length inlA, a causally linked virulence determinant. Unexpectedly, 4b serotypes more readily acquired point mutations leading to rifampicin resistance compared to other serotypes (p
Item Metadata
| Title |
Characterization of food chain-derived Listeria monocytogenes and the role of Listeria genomic island (LGI1) in virulence, survival, and tolerance to food-related stress
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| Creator | |
| Publisher |
University of British Columbia
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| Date Issued |
2014
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| Description |
The presence of Listeria spp. and L. monocytogenes (Lm) was investigated in provincially inspected food processing and retail facilities in British Columbia. Lm (n=56) was recovered in food processing environment (FPE) of dairy, meat and fish facilities, and in ready-to-eat fish products. The majority of Lm belonged to listeriosis causing serotypes 1/2a and 4b. Isolate fingerprinting revealed 14 sequence types, and 38 pulsotypes, with 66% of Lm possessing the full-length inlA, a causally linked virulence determinant. Unexpectedly, 4b serotypes more readily acquired point mutations leading to rifampicin resistance compared to other serotypes (p
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| Genre | |
| Type | |
| Language |
eng
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| Date Available |
2014-10-17
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| Provider |
Vancouver : University of British Columbia Library
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| Rights |
Attribution-NonCommercial-NoDerivs 2.5 Canada
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| DOI |
10.14288/1.0167020
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| URI | |
| Degree (Theses) | |
| Program (Theses) | |
| Affiliation | |
| Degree Grantor |
University of British Columbia
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| Graduation Date |
2014-11
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| Campus | |
| Scholarly Level |
Graduate
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| Rights URI | |
| Aggregated Source Repository |
DSpace
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Rights
Attribution-NonCommercial-NoDerivs 2.5 Canada