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Expression of a functional antizearalenone single-chain Fv antibody in transgenic Arabidopsis plants.

Publication ,  Journal Article
Yuan, Q; Hu, W; Pestka, JJ; He, SY; Hart, LP
Published in: Applied and environmental microbiology
August 2000

The efficacy of cloning a recombinant mycotoxin antibody in plants was tested using Arabidopsis as a model. An antizearalenone single-chain Fv (scFv) DNA fragment was first cloned in the newly constructed phage display vector (pEY.5) and then recloned in the plant transformation vector pKYLX71::35S(2). After transformation, constructs of antizearalenone scFv were introduced into immature Arabidopsis seeds via Agrobacterium tumefaciens mediation by vacuum infiltration. Only plants transformed with the construct containing a PR-1b signal peptide sequence produced transgenic offspring. The antizearalenone scFv "plantibody" from these transgenic plants bound zearalenone with a high affinity (50% inhibitory concentration, 11.2 ng/ml) that was comparable to that of bacterially produced scFv antibody and the parent monoclonal antibody (MAb). By electron microscopic immunogold labeling, the presence of antizearalenone scFv was detected mainly in the cytoplasm and only occasionally outside the cell. Like bacterially produced scFv antibody, antizearalenone scFv plantibody exhibited greater sensitivity to methanol destabilization than did the parent MAb. The sensitivity of antizearalenone scFv plantibody to acidic disassociation was similar to the sensitivities of bacterially produced scFv antibody and MAb. Expression of specific plantibodies in crops might be useful for neutralizing mycotoxins in animal feeds and for reducing mycotoxin-associated plant diseases.

Duke Scholars

Published In

Applied and environmental microbiology

DOI

EISSN

1098-5336

ISSN

0099-2240

Publication Date

August 2000

Volume

66

Issue

8

Start / End Page

3499 / 3505

Related Subject Headings

  • Zearalenone
  • Transgenes
  • Plants, Genetically Modified
  • Molecular Sequence Data
  • Microbiology
  • Methanol
  • Immunoglobulin Fragments
  • Hydrogen-Ion Concentration
  • Cloning, Molecular
  • Base Sequence
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Yuan, Q., Hu, W., Pestka, J. J., He, S. Y., & Hart, L. P. (2000). Expression of a functional antizearalenone single-chain Fv antibody in transgenic Arabidopsis plants. Applied and Environmental Microbiology, 66(8), 3499–3505. https://doi.org/10.1128/aem.66.8.3499-3505.2000
Yuan, Q., W. Hu, J. J. Pestka, S. Y. He, and L. P. Hart. “Expression of a functional antizearalenone single-chain Fv antibody in transgenic Arabidopsis plants.Applied and Environmental Microbiology 66, no. 8 (August 2000): 3499–3505. https://doi.org/10.1128/aem.66.8.3499-3505.2000.
Yuan Q, Hu W, Pestka JJ, He SY, Hart LP. Expression of a functional antizearalenone single-chain Fv antibody in transgenic Arabidopsis plants. Applied and environmental microbiology. 2000 Aug;66(8):3499–505.
Yuan, Q., et al. “Expression of a functional antizearalenone single-chain Fv antibody in transgenic Arabidopsis plants.Applied and Environmental Microbiology, vol. 66, no. 8, Aug. 2000, pp. 3499–505. Epmc, doi:10.1128/aem.66.8.3499-3505.2000.
Yuan Q, Hu W, Pestka JJ, He SY, Hart LP. Expression of a functional antizearalenone single-chain Fv antibody in transgenic Arabidopsis plants. Applied and environmental microbiology. 2000 Aug;66(8):3499–3505.

Published In

Applied and environmental microbiology

DOI

EISSN

1098-5336

ISSN

0099-2240

Publication Date

August 2000

Volume

66

Issue

8

Start / End Page

3499 / 3505

Related Subject Headings

  • Zearalenone
  • Transgenes
  • Plants, Genetically Modified
  • Molecular Sequence Data
  • Microbiology
  • Methanol
  • Immunoglobulin Fragments
  • Hydrogen-Ion Concentration
  • Cloning, Molecular
  • Base Sequence