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Microorganisms
Volume 13
Issue 5
10.3390/microorganisms13051055
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Article

Microbicidal Activity of Extract Larrea tridentata (Sessé and Moc. ex DC.) Coville on Pseudomonas syringae Van Hall and Botrytis cinerea Pers

by
Diego Rivera-Escareño
1,
Jorge Cadena-Iñiguez
1,*,
Dalia Abigail García-Flores
1,
Gerardo Loera-Alvarado
1,
Lizeth Aguilar-Galaviz
1 and
María Azucena Ortega-Amaro
2
1
Colegio de Postgraduados, Innovación en Manejo de Recursos Naturales, Campus San Luis Potosí, Iturbide 73, Salinas de Hidalgo C.P. 78600, SLP, Mexico
2
Coordinación Académica Región Altiplano Oeste, Universidad Autónoma de San Luis Potosí, Carretera Salinas-Santo Domingo 200, Salinas de Hidalgo C.P. 78600, SLP, Mexico
*
Author to whom correspondence should be addressed.
Microorganisms 2025, 13(5), 1055; https://doi.org/10.3390/microorganisms13051055
Submission received: 19 March 2025 / Revised: 24 April 2025 / Accepted: 25 April 2025 / Published: 30 April 2025
(This article belongs to the Section Antimicrobial Agents and Resistance)
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Abstract

Due to their secondary metabolite content, plant extracts are an alternative method for controlling pathogenic organisms in agriculture and post-harvest operations. Botrytis cinerea and Pseudomonas syringae are among the causative agents of diseases and losses in agricultural production. The species Larrea tridentata is abundant in the arid and semi-arid zones of Mexico and has no defined use; however, it contains secondary metabolites with microbicidal potential that could aid in biological control and enhance its harvest status. Growth inhibition (halo) of B. cinerea and P. syringae was evaluated by applying alcoholic extract of L. tridentata leaves at doses of 50, 100, 250, 500, 750, 1000, and 2000 µg mL−1 in vitro, using poisoned medium and potato dextrose agar for the fungus and the agar well method for the bacteria, in a completely randomized design with five replicates. The flavonoids quercetin, apigenin, narigenin, kaempferol, and galangin were identified as possible agents of microbicidal activity. The extract inhibited the growth of B. cinerea from 100 µg mL−1 and completely inhibited it with 1000 and 2000 µg mL−1. For P. syringae, inhibition was observed from 250 µg mL−1, demonstrating that the higher the concentration, the greater the growth inhibitory effect. The secondary metabolite content of the L. tridentata extract is sufficient to have an impact on microorganisms with economic impact in agriculture.
Keywords: phytochemicals; crop diseases; botanical extracts; sustainable control phytochemicals; crop diseases; botanical extracts; sustainable control

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MDPI and ACS Style

Rivera-Escareño, D.; Cadena-Iñiguez, J.; García-Flores, D.A.; Loera-Alvarado, G.; Aguilar-Galaviz, L.; Ortega-Amaro, M.A. Microbicidal Activity of Extract Larrea tridentata (Sessé and Moc. ex DC.) Coville on Pseudomonas syringae Van Hall and Botrytis cinerea Pers. Microorganisms 2025, 13, 1055. https://doi.org/10.3390/microorganisms13051055

AMA Style

Rivera-Escareño D, Cadena-Iñiguez J, García-Flores DA, Loera-Alvarado G, Aguilar-Galaviz L, Ortega-Amaro MA. Microbicidal Activity of Extract Larrea tridentata (Sessé and Moc. ex DC.) Coville on Pseudomonas syringae Van Hall and Botrytis cinerea Pers. Microorganisms. 2025; 13(5):1055. https://doi.org/10.3390/microorganisms13051055

Chicago/Turabian Style

Rivera-Escareño, Diego, Jorge Cadena-Iñiguez, Dalia Abigail García-Flores, Gerardo Loera-Alvarado, Lizeth Aguilar-Galaviz, and María Azucena Ortega-Amaro. 2025. "Microbicidal Activity of Extract Larrea tridentata (Sessé and Moc. ex DC.) Coville on Pseudomonas syringae Van Hall and Botrytis cinerea Pers" Microorganisms 13, no. 5: 1055. https://doi.org/10.3390/microorganisms13051055

APA Style

Rivera-Escareño, D., Cadena-Iñiguez, J., García-Flores, D. A., Loera-Alvarado, G., Aguilar-Galaviz, L., & Ortega-Amaro, M. A. (2025). Microbicidal Activity of Extract Larrea tridentata (Sessé and Moc. ex DC.) Coville on Pseudomonas syringae Van Hall and Botrytis cinerea Pers. Microorganisms, 13(5), 1055. https://doi.org/10.3390/microorganisms13051055

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