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Title 

A real-time PCR assay for detection and quantification of Lactococcus garvieae

Authors 

M Y JungY H ChangW Kim

Publisher 

Wiley-Blackwell

Issue Date 

2010

Citation 

Journal of Applied Microbiology, vol. 108, no. 5, pp. 1694-1701

Keywords 

16S rRNADetectionFishPathogenQuantitative polymerase chain reaction

Abstract 

Aims: To develop a rapid, sensitive, specific tool for the detection and quantification of Lactococcus garvieae in food and environmental samples. Methods and Results: A real-time quantitative PCR (qPCR) assay with primers for CAU12F and CAU12R based on the 16S rRNA gene of L. garvieae was successfully established. The limit of detection for L. garvieae genomic DNA was 1 ng DNA in conventional PCR and 32 fg with a mean CT value of 36·75 in qPCR. Quantification of L. garvieae vegetative cells was linear (R2 = 0·99) over a 7-log-unit dynamic range down to ten L. garvieae cells. Conclusions: This method is highly specific, sensitive and reproducible for the detection of L. garvieae compared to gel-based conventional PCR assays, thus providing precise quantification of L. garvieae in food and natural environments. Significance and Impact of the Study: This work provides efficient diagnostic and monitoring tools for the rapid identification of L. garvieae, an emerging pathogen in aquaculture and an occasional human pathogen from other members of the genus Lactobacillus.

ISSN 

1364-5072

Link 

http://dx.doi.org/10.1111/j.1365-2672.2009.04568.x

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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