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Antiviral Activity of TiO 2 NPs against Tobacco Mosaic Virus in Chili Pepper ( Capsicum annuum L.)

Author

Listed:
  • Noemi L. Acuña-Fuentes

    (Laboratory of Biosystems Engineering, Faculty of Engineering, Campus Amazcala, Autonomous University of Queretaro, Carretera a Chichimequillas, km 1 S/N, El Marques 76265, Queretaro, Mexico)

  • Marcela Vargas-Hernandez

    (Faculty of Engineering, Campus Amealco, Autonomous University of Queretaro, Carretera Amealco Temazcaltzingo, km 1, Centro, Amealco de Bonfil 76850, Queretaro, Mexico)

  • Samantha de Jesus Rivero-Montejo

    (Laboratory of Biosystems Engineering, Faculty of Engineering, Campus Amazcala, Autonomous University of Queretaro, Carretera a Chichimequillas, km 1 S/N, El Marques 76265, Queretaro, Mexico)

  • Luisa K. Rivas-Ramirez

    (Laboratory of Biosystems Engineering, Faculty of Engineering, Campus Amazcala, Autonomous University of Queretaro, Carretera a Chichimequillas, km 1 S/N, El Marques 76265, Queretaro, Mexico)

  • Israel Macias-Bobadilla

    (Faculty of Engineering, Campus Conca, Autonomous University of Queretaro, Valle Agrícola S/N, Arroyo Seco 76410, Queretaro, Mexico)

  • Viviana Palos-Barba

    (Department of Nanotechnology, Center of Applied Physics and Advanced Technology, National Autonomous University of Mexico, A.P. 1-1010, Querétaro 76010, Queretaro, Mexico)

  • Eric M. Rivera-Muñoz

    (Department of Nanotechnology, Center of Applied Physics and Advanced Technology, National Autonomous University of Mexico, A.P. 1-1010, Querétaro 76010, Queretaro, Mexico)

  • Ramon G. Guevara-Gonzalez

    (Laboratory of Biosystems Engineering, Faculty of Engineering, Campus Amazcala, Autonomous University of Queretaro, Carretera a Chichimequillas, km 1 S/N, El Marques 76265, Queretaro, Mexico)

  • Irineo Torres-Pacheco

    (Laboratory of Biosystems Engineering, Faculty of Engineering, Campus Amazcala, Autonomous University of Queretaro, Carretera a Chichimequillas, km 1 S/N, El Marques 76265, Queretaro, Mexico)

Abstract

Tobacco mosaic virus is the etiological agent of one of the most critical diseases limiting chili pepper production. Various practices have been used to manage the disease, e.g., the use of resistant varieties and interference with the vector through chemical control. However, these practices are not helpful once the virus has been established in the plant. There is still no effective method for the sustainable management of the disease; therefore, exploring new options is required. Currently, some studies have reported the activity of TiO 2 NPs against viruses in plants, although not against TMV in chili pepper. The present work aims to determine a possible direct action of TiO 2 NPs against TMV and if there is a relationship between the amount of virus and symptoms. The application of TiO 2 NPs at 150 μg/mL in infected pepper plants reduced symptoms and viral load and improved the morphological characteristics compared to the control. Incubation of 150 µg/mL TiO 2 NPs with the virus for 6 and 8 h before infection decreased viral concentration significantly after infection compared to the control. In this work, it is reported, for the first time, that the use of TiO 2 NPs is a novel practice for the control of TMV in chili pepper.

Suggested Citation

  • Noemi L. Acuña-Fuentes & Marcela Vargas-Hernandez & Samantha de Jesus Rivero-Montejo & Luisa K. Rivas-Ramirez & Israel Macias-Bobadilla & Viviana Palos-Barba & Eric M. Rivera-Muñoz & Ramon G. Guevara-, 2022. "Antiviral Activity of TiO 2 NPs against Tobacco Mosaic Virus in Chili Pepper ( Capsicum annuum L.)," Agriculture, MDPI, vol. 12(12), pages 1-14, December.
    • Handle: RePEc:gam:jagris:v:12:y:2022:i:12:p:2101-:d:997071
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    References listed on IDEAS

    as
    1. Samantha de Jesus Rivero-Montejo & Marcela Vargas-Hernandez & Irineo Torres-Pacheco, 2021. "Nanoparticles as Novel Elicitors to Improve Bioactive Compounds in Plants," Agriculture, MDPI, vol. 11(2), pages 1-16, February.
    2. Marcela Vargas-Hernandez & Israel Macias-Bobadilla & Ramon Gerardo Guevara-Gonzalez & Enrique Rico-Garcia & Rosalia Virginia Ocampo-Velazquez & Luciano Avila-Juarez & Irineo Torres-Pacheco, 2020. "Nanoparticles as Potential Antivirals in Agriculture," Agriculture, MDPI, vol. 10(10), pages 1-18, September.
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