Vol. 36 No. NE-1 (2026): XXVIII Congreso Internacional en Ciencias Agrícolas
Artículos de investigación

Influence of the LED light spectrum on the in vitro development of Phytophthora capsici

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  • Norma Delia Zazueta Torres,
  • Moisés Gilberto Yáñez-Juárez,
  • Héctor Rojas-Pérez,
  • Luz Llarely Cazarez Flores,
  • Aurelia Mendoza-Gómez,
  • Jesús Enrique López-Avendaño,
  • Mirta Candelaria Cano-Campos
Norma Delia Zazueta Torres http://orcid.org/0000-0001-5185-8283
Luz Llarely Cazarez Flores https://orcid.org/0000-0002-8285-0601

Published 2026-09-23

Copyright (c) 2026 Norma Delia Zazueta Torres, Moisés Gilberto Yáñez-Juárez, Héctor Rojas-Pérez, Luz Llarely Cazarez Flores, Aurelia Mendoza-Gómez, Jesús Enrique López-Avendaño, Mirta Candelaria Cano-Campos

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

How to Cite

Zazueta Torres, N. D., Yáñez-Juárez, M. G., Rojas-Pérez, H., Cazarez Flores, L. L., Mendoza-Gómez, A., López-Avendaño, J. E., & Cano-Campos, M. C. (2026). Influence of the LED light spectrum on the in vitro development of Phytophthora capsici. Acta Universitaria, 36(NE-1), 1-6. https://doi.org/10.15174/au.2026.4912

Abstract

This research was conducted to determine the influence of light quality emitted by LED combinations on the radial growth and biomass of Phytophthora capsici mycelium cultivated in vitro. Four treatments were used, consisting of combinations of white (B), red (R), and blue (A) LED located in growth chambers, with the following percentages: 100B-0R-0A, 70B-30R-0A, 80B-0R-20A, and 60B-27R-13A. These treatments were established using a completely randomized design with 10 replicates. The light spectrum emitted by LED lamps influenced the in vitro growth of P. capsici. Treatment 80B-0R-20A, characterized by a higher emission in the blue light range (400 nm-500 nm), reduced radial growth by 13.3%, 17.7%, and 6.16%, respectively, compared to the fungus that grew under the effect of 70B-30R-0A, with a higher emission of red light, as well as the biomass of P. capsici, suggesting an inhibitory effect associated with the predominance of this spectrum.

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