Repositorio Institucional
Repositorio Institucional
CONICET Digital
  • Inicio
  • EXPLORAR
    • AUTORES
    • DISCIPLINAS
    • COMUNIDADES
  • Estadísticas
  • Novedades
    • Noticias
    • Boletines
  • Ayuda
    • General
    • Datos de investigación
  • Acerca de
    • CONICET Digital
    • Equipo
    • Red Federal
  • Contacto
JavaScript is disabled for your browser. Some features of this site may not work without it.
  • INFORMACIÓN GENERAL
  • RESUMEN
  • ESTADISTICAS
 
Artículo

Activity of grindelanes against important maize pest Spodoptera frugiperda and their selectivity of action on non-target environmental bacteria

Mesurado, María de Los Angeles; Chalup, Adriana Elizabeth; Ortiz, Javier EstebanIcon ; Zaragoza Puchol, José DanielIcon ; Feresin, Gabriela EglyIcon ; Bardon, Alicia del ValleIcon ; Cartagena, Elena
Fecha de publicación: 09/2021
Editorial: Wiley Blackwell Publishing, Inc
Revista: Entomologia Experimentalis et Applicata
ISSN: 0013-8703
e-ISSN: 1570-7458
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Química Orgánica

Resumen

In the search for new plant-derived products with antifeedant and insecticidal potential against economically important insects, 11 grindelanes (two as natural acids and nine as methylated derivatives) purified from the foliar tissue of Grindelia chiloensis (Cornel.) Cabrera (Asteraceae) were evaluated against the fall armyworm, Spodoptera frugiperda (JE Smith) (Lepidoptera: Noctuidae). Larvae of this moth are considered to be the main pest of maize that causes severe losses on local agricultural production. Remarkable alterations in feeding behavior, larval weight, larval and pupal stage lengths, and adult fertility, as well as malformations and mortality in specimens during their life cycle were noticed in the feeding preference tests and no-choice diet assays. Antifeedant indexes (AI%) calculated in food preference bioassays reached up to 79% for the lipophilic grindelane 3b, the most potent antifeedant agent. Grindelane 7b showed a better insecticidal activity (median lethal dose, LD50 = 26.49 µg g−1) and 8b was potentially neurotoxic due to acetylcholinesterase inhibition. Ultrastructure of the middle portion of the digestive tract of larvae fed with small amounts of natural grindelane 9a supplemented to the diet revealed cell damage, and thickening of the peritrophic membrane and a striking number of mitochondria, as evident signs of defense against toxic substances ingested by the larvae. Besides, this study demonstrated that these effective insecticides did not have inhibitory effects on beneficial plant and soil bacteria which would allow ecological pest management.
Palabras clave: ACETYLCHOLINESTERASE ACTIVITY , ANTIFEEDANTS , ASTERACEAE , FALL ARMYWORM , GRINDELIA CHILOENSIS , INSECTICIDES , LEPIDOPTERA , MAIZE PEST , NOCTUIDAE , NON-TARGET ENVIRONMENTAL BACTERIA , SPODOPTERA FRUGIPERDA , SURFACE ACTIVITY
Ver el registro completo
 
Archivos asociados
Thumbnail
 
Tamaño: 13.69Mb
Formato: PDF
.
Descargar
Licencia
info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/147763
URL: https://onlinelibrary.wiley.com/doi/10.1111/eea.13067
DOI: http://dx.doi.org/10.1111/eea.13067
Colecciones
Articulos(CCT - SAN JUAN)
Articulos de CENTRO CIENTIFICO TECNOLOGICO CONICET - SAN JUAN
Citación
Mesurado, María de Los Angeles; Chalup, Adriana Elizabeth; Ortiz, Javier Esteban; Zaragoza Puchol, José Daniel; Feresin, Gabriela Egly; et al.; Activity of grindelanes against important maize pest Spodoptera frugiperda and their selectivity of action on non-target environmental bacteria; Wiley Blackwell Publishing, Inc; Entomologia Experimentalis et Applicata; 169; 9; 9-2021; 825-837
Compartir
Altmétricas
 

Enviar por e-mail
Separar cada destinatario (hasta 5) con punto y coma.
  • Facebook
  • X Conicet Digital
  • Instagram
  • YouTube
  • Sound Cloud
  • LinkedIn

Los contenidos del CONICET están licenciados bajo Creative Commons Reconocimiento 2.5 Argentina License

https://www.conicet.gov.ar/ - CONICET

Inicio

Explorar

  • Autores
  • Disciplinas
  • Comunidades

Estadísticas

Novedades

  • Noticias
  • Boletines

Ayuda

Acerca de

  • CONICET Digital
  • Equipo
  • Red Federal

Contacto

Godoy Cruz 2290 (C1425FQB) CABA – República Argentina – Tel: +5411 4899-5400 repositorio@conicet.gov.ar
TÉRMINOS Y CONDICIONES