Extracts of Mexican mistletoe on the development and recovery of Phytophthora capsici
Por:
Sevillano-Serrano, J, Xoca-Orozco, LA, Orona-Tamayo, D, Shimada-Beltrán, H, Rojas-Rojas, FU, Vega-Arreguín, JC
Publicada:
1 ene 2026
Resumen:
Phytophthora capsici affects a wide range of food crops; the use of natural products for its control is crucial to reducing the use of agrochemicals. The activity of four concentrations of extracts from the leaves and flowers of Mexican mistletoe (Psittacanthus calyculatus) on the development and recovery of the oomycete was evaluated during and after treatment. At the highest concentration (33.3%), the mistletoe leaf extracts inhibited pathogen growth by 50.6% and the flower extracts by 54.4%. They also caused decreased sporangium formation, alterations in colonial morphology, sparse mycelial development, hyphal modification and deformation, reduced pigment production in the culture medium, and loss of zoospore viability. However, the phytopathogen recovered its growth in 87% to 97% of cases, demonstrating the adaptability of P. capsici and the ability of the extracts to delay its development.
Filiaciones:
Sevillano-Serrano, J:
UNAM, Escuela Nacl Estudios Super, Unidad Leon, Blvd UNAM 2011, Leon 37684, Guanajuato, Mexico
Univ Nacl Autonoma Mexico, Unidad Posgrad, Posgrad Ciencias Biol, Edificio D,1 Piso,Ciudad Univ, Coyoacan 04510, Cdmx, Mexico
Xoca-Orozco, LA:
Inst Tecnol Super Purisima Rincon, Ingn Bioquim TecNM, Blvd Valle 2301, Guanajuato 36425, Mexico
Orona-Tamayo, D:
Ctr Innovac Aplicada Tecnol Competit CIATEC, Omega 201 Col Ind Delta, Leon 37545, Guanajuato, Mexico
Shimada-Beltrán, H:
UNAM, Escuela Nacl Estudios Super, Unidad Leon, Blvd UNAM 2011, Leon 37684, Guanajuato, Mexico
Rojas-Rojas, FU:
UNAM, Escuela Nacl Estudios Super, Unidad Leon, Blvd UNAM 2011, Leon 37684, Guanajuato, Mexico
Vega-Arreguín, JC:
UNAM, Escuela Nacl Estudios Super, Unidad Leon, Blvd UNAM 2011, Leon 37684, Guanajuato, Mexico
gold
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