Effect of Beauveria bassiana-Seed Treatment on Zea mays L. Response against Spodoptera frugiperda

Kuzhuppillymyal Prabhakarankutty, Laiju y Ferrara Rivero, Fernando H y Tamez Guerra, Patricia y Gómez Flores, Ricardo Alberto y Rodríguez Padilla, Cristina y Ek Ramos, María Julissa (2021) Effect of Beauveria bassiana-Seed Treatment on Zea mays L. Response against Spodoptera frugiperda. Applied sciences, 11. pp. 1-15. ISSN 2076-3417

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Resumen

Spodoptera frugiperda is a widely distributed insect pest that causes major economic losses in various crops, particularly maize. On the other hand, Beauveria bassiana is an entomopathogenic fungus that establishes symbiotic associations with many plants and contributes to tolerance against biotic and abiotic stresses. In the present work, in laboratory experiments, the effects of the B. bassiana strain GHA, in addition to a native strain (PTG4), delivered via seed treatment in maize seedlings, were evaluated on S. frugiperda growth, development, and mortality. We inoculated maize seeds with 1 × 106B. bassiana blastospores; then these seeds were germinated and grown to seedlings under growth chamber conditions. Third-instar S. frugiperda larvae were allowed to feed on B. bassiana-treated and -untreated (negative control) seedlings until reaching the sixth instar and transferred to an artificial diet until reaching adult stage. Results showed that larvae feeding on B. bassiana strain PTG4-treated plants prolonged their larval stage. Furthermore, feeding on plants treated with B. bassiana strains yielded fewer S. frugiperda male moths compared with feeding with the untreated control plants. Under field conditions, 1 × 106 (first trial) and 1 × 108 (second trial) of B. bassiana (GHA strain) blastospores were used for corn seed inoculation. In the first field trial, there were a higher number of larvae in the negative control plants compared to those in the plants treated with B. bassiana. No larvae were found in negative control and B. bassiana-treated plants in the second field trial. In conclusion, seed treatment with B. bassiana in maize reduced S. frugiperda infestation of maize plants in field trials. S. frugiperda development was also affected in laboratory trials.

Tipo de elemento:

Article

Palabras claves no controlados:

Beauveria bassiana, control biológico, hongos entomopatógenos, Spodoptera frugiperda, Zea mays

Materias:

Q Ciencia > QH Historia Natural, Biología

Divisiones:

Ciencias Biológicas

Usuario depositante:

Editor Repositorio

Creadores:

Creador	Email	ORCID
Kuzhuppillymyal Prabhakarankutty, Laiju	laijuprabha@gmail.com	NO ESPECIFICADO
Ferrara Rivero, Fernando H	NO ESPECIFICADO	NO ESPECIFICADO
Tamez Guerra, Patricia	NO ESPECIFICADO	orcid.org/0000-0002-4831-2340
Gómez Flores, Ricardo Alberto	ricardo.gomezfl@uanl.edu.mx	NO ESPECIFICADO
Rodríguez Padilla, Cristina	cristina.rodriguezpd@uanl.edu.mx	orcid.org/0000-0001-5469-8449
Ek Ramos, María Julissa	maria.ekramos@uanl.edu.mx	NO ESPECIFICADO