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Monoclonal antibody-based diagnostic assays for pepper mild mottle virus

  • Teewasit Phatsaman
  • Ratchanee HongprayoonEmail author
  • Sirikul Wasee
Original Article
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Abstract

A triple antibody sandwich enzyme-linked immunosorbent assay (TAS-ELISA) and an immunocapture reverse transcription-polymerase chain reaction (IC-RT-PCR) for pepper mild mottle virus (PMMoV) detection were developed based on monoclonal and polyclonal antibodies produced in this study. Production of anti-PMMoV monoclonal antibodies (MAbs) was achieved using the hybridoma technique and a recombinant protein of the PMMoV coat protein as the antigen. Production of a polyclonal antibody (PAb) against the recombinant coat protein of PMMoV was carried out in a New Zealand White rabbit. The PAb was specific to five tobamoviruses consisting of PMMoV, tobacco mosaic virus (TMV), odontoglossum ringspot virus (ORSV), tomato mosaic virus (ToMV) and ribgrass mosaic virus (RMV). Two TAS-ELISA protocols were developed based on the characteristics of the antibodies produced. One protocol, based on MAb TOBA1, could detect five tobamoviruses (TMV, PMMoV, ORSV, ToMV, and RMV), four of which infect peppers. In the other protocol, TOBA10 was used to specifically detect PMMoV. We also successfully developed an IC-RT-PCR procedure using TOBA1. The sensitivity of the IC-RT-PCR (1:2,000,000) was much higher than TAS-ELISA (1:5120) for detection of the virus in plant sap. We anticipate these assays to facilitate the screening process of tobamovirus-resistant pepper cultivars in breeding programs.

Keywords

Coat protein Detection method Monoclonal antibody Pepper viruses IC-RT-PCR 

Notes

Acknowledgements

This work was supported by the Center for Advanced Studies for Agriculture and Food, Institute for Advanced Studies, Kasetsart University, Bangkok, Thailand under the Higher Education Research Promotion and National Research University Project of Thailand, Office of the Higher Education Commission, Ministry of Education, Thailand and by the Kasetsart University Research and Development Institute (KURDI).

Compliance with ethical standards

Conflict of interest

The authors declare that we have no conflicts of interest.

Ethical approval

All procedures performed in studies involving animals were in accordance with the guidelines of animal care and use under the Ethical Review Board of the Office of National Research Council of Thailand (NRCT) for the conduction of the scientific research.

Informed consent

Informed consent was obtained from all individual participants included in this study.

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Copyright information

© Società Italiana di Patologia Vegetale (S.I.Pa.V.) 2019

Authors and Affiliations

  • Teewasit Phatsaman
    • 1
    • 2
    • 3
    • 4
  • Ratchanee Hongprayoon
    • 1
    • 2
    • 3
    • 4
    Email author
  • Sirikul Wasee
    • 3
    • 4
    • 5
  1. 1.Department of Plant Pathology, Faculty of Agriculture at Kamphaeng SaenKasetsart UniversityNakhon PathomThailand
  2. 2.Center for Advanced Studies for Agriculture and Food, Kasetsart University Institute for Advanced Studies (CASAF, NRU-KU, Thailand)Kasetsart UniversityBangkokThailand
  3. 3.Center for Agricultural BiotechnologyKasetsart UniversityNakhon PathomThailand
  4. 4.Center of Excellence on Agricultural Biotechnology: (AG-BIO/PERDO-CHE)BangkokThailand
  5. 5.Tropical Vegetable Research Center, Faculty of Agriculture at Kamphaeng SaenKasetsart UniversityNakhon PathomThailand

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