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Expression of Escherichia coli heat-labile enterotoxin B subunit in transgenic tomato (Solanum lycopersicum L.) fruit

Author

Listed:
  • Nguyen Hoang LOC

    (Institute of Resources, Environment and Biotechnology, Hue University, Hue, Vietnam)

  • Dang Thanh LONG

    (Institute of Resources, Environment and Biotechnology, Hue University, Hue, Vietnam)

  • Tae-Geum KIM

    (Department of Molecular Biology, Chonbuk National University, Jeonju, Republic of Korea)

  • Moon-Sik YANG

    (Department of Molecular Biology, Chonbuk National University, Jeonju, Republic of Korea
    Jeonju Center, Korea Basic Science Institute, Jeonju, Republic of Korea)

Abstract

We report a feasibility study for expressing the LTB protein (Escherichia coli heat-labile enterotoxin B subunit) via Agrobacterium-mediated transformation of tomato (Solanum lycopersicum L.). We produced five regenerated plants obtained on the selection medium supplemented with an antibiotic. Stable integrations of the LTB gene into the genome of these plants were confirmed by Southern blot hybridization. Western blot analysis showed that only two of the five T0 transgenic tomato plants expressed the pentameric LTB protein in the fruits. An enzyme-linked immunosorbent assay indicated that these two plants synthesized the LTB protein bound specifically to GM1 ganglioside, suggesting that the LTB subunits formed active pentamers. The LTB protein produced in tomatoes can be a potential candidate for inexpensive, safe, and effective plant-based vaccines.

Suggested Citation

  • Nguyen Hoang LOC & Dang Thanh LONG & Tae-Geum KIM & Moon-Sik YANG, 2014. "Expression of Escherichia coli heat-labile enterotoxin B subunit in transgenic tomato (Solanum lycopersicum L.) fruit," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 50(1), pages 26-31.
    • Handle: RePEc:caa:jnlcjg:v:50:y:2014:i:1:id:77-2013-cjgpb
    DOI: 10.17221/77/2013-CJGPB
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