Development of a Monitoring Vector for Leuconostoc mesenteroides Using the Green Fluorescent Protein Gene

  • Lee, Kwan-Hoon (Graduate School of Biotechnology and Biomaterial Technology and Business Center, Institute of Life Science and Resources, Kyung Hee University) ;
  • Park, Woo-Jung (Graduate School of Biotechnology and Biomaterial Technology and Business Center, Institute of Life Science and Resources, Kyung Hee University) ;
  • Kim, Joo-Yun (Graduate School of Biotechnology and Biomaterial Technology and Business Center, Institute of Life Science and Resources, Kyung Hee University) ;
  • Kim, Han-Geun (Graduate School of Biotechnology and Biomaterial Technology and Business Center, Institute of Life Science and Resources, Kyung Hee University) ;
  • Lee, Jung-Min (Graduate School of Biotechnology and Biomaterial Technology and Business Center, Institute of Life Science and Resources, Kyung Hee University) ;
  • Kim, Jeong-Hwan (Division of Applied Life Science, Graduate School, and Institute of Agriculture & Life Science, Gyeongsang National University) ;
  • Park, Jeong-Woo (Department of Biological Sciences and Immunomodulation Research Center, University of Ulsan) ;
  • Lee, Jong-Hoon (Department of Food Science and Biotechnology, Kyonggi University) ;
  • Chung, Sung-Kyun (Department of Dental Hygiene, Shinheung College) ;
  • Chung, Dae-Kyun (Graduate School of Biotechnology and Biomaterial Technology and Business Center, Institute of Life Science and Resources, Kyung Hee University)
  • Published : 2007.07.31

Abstract

The vector pCW5 with plasmid pC7, originally isolated in Lactobacillus paraplantarum C7 derived from kimchi, was constructed using a p32 strong promoter, the pC7 replicon, and green fluorescent protein (GFP) as the reporter. The constructed vector was transformed into E. coli and Leuconostoc mesenteroides, and GFP expression detected using a Western blot analysis. GFP fluorescence was recognized in E. coli and Leuconostoc mesenteroides using a confocal microscope. In addition, GFP fluorescence was also clearly detected in several industrially important lactic acid bacteria (LAB), including Lactobacillus bulgaricus, Lactobacillus paraplantarum, and Lactobacillus plantarum. Thus, pCW5 was shown to be effective for Leuconostoc mesenteroides when using GFP as the reporter, and it can also be used as a broad-host-range vector for other lactic acid bacteria.

Keywords

References

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