Probing behavior of the corn leafhopper Dalbulus maidis on susceptible and resistant maize hybrids

The corn leafhopper Dalbulus maidis is the main vector of the pathogens that cause corn stunt, a major disease of maize in the Americas. In line with plant resistance being an efficient tool to control diseases, the findings of a previous work showed that some corn hybrids are resistant to D. maidis...

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Autores principales: Catalano, María Inés, Carpane, Pablo Daniel
Otros Autores: 0000-0002-8382-7403
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: PLOS 2023
Materias:
EPG
Achaparramiento
Maíz
Interacción planta-insecto
Dalbulus maidis
Acceso en línea:http://repositorio.unnoba.edu.ar/xmlui/handle/23601/687
Aporte de:
Re DI Repositorio Digital UNNOBA de Universidad Nacional del Noroeste de la Provincia de Buenos Aires
id I103-R405-23601-687
record_format dspace
institution Universidad Nacional del Noroeste de la Provincia de Buenos Aires
institution_str I-103
repository_str R-405
collection Re DI Repositorio Digital UNNOBA
language Inglés
topic EPG
Achaparramiento
Maíz
Interacción planta-insecto
Dalbulus maidis
spellingShingle EPG
Achaparramiento
Maíz
Interacción planta-insecto
Dalbulus maidis
Catalano, María Inés
Carpane, Pablo Daniel
Probing behavior of the corn leafhopper Dalbulus maidis on susceptible and resistant maize hybrids
topic_facet EPG
Achaparramiento
Maíz
Interacción planta-insecto
Dalbulus maidis
description The corn leafhopper Dalbulus maidis is the main vector of the pathogens that cause corn stunt, a major disease of maize in the Americas. In line with plant resistance being an efficient tool to control diseases, the findings of a previous work showed that some corn hybrids are resistant to D. maidis. In this work, we assessed the probing behavior of D. maidis on susceptible and resistant corn hybrids using EPG (Electrical Penetration Graph) technology. Feeding of fifteen-day-old, non-inoculative females was recorded for 20 hours, with access to hybrids DK390, DK670, DK79-10, and DK72-10. Compared to the susceptible hybrid DK670, the other hybrids shifted D. maidis probing behavior in a way consistent with plant resistance to insects. This shift consisted of a higher number of probes of short duration, difficulties in attaining phloem ingestion and increase in xylem ingestion. In addition to this common shift in probing behavior, a phloem-located resistance factor was inferred in DK72-10 based on the longer time spent in phloem conditioning to attain phloem ingestion. In contrast, DK390 expressed the highest level of mesophyll and phloem-based resistance, in both cases seen with repeated attempts of short duration, a behavior typically associated with failed attempts to ingest. These findings support and are consistent with previous research, providing useful information to characterize maize hybrids resistant to D. maidis, and consequently to corn stunt.
author2 0000-0002-8382-7403
author_facet 0000-0002-8382-7403
Catalano, María Inés
Carpane, Pablo Daniel
format Artículo
publishedVersion
Artículo
publishedVersion
Artículo
publishedVersion
Artículo
author Catalano, María Inés
Carpane, Pablo Daniel
author_sort Catalano, María Inés
title Probing behavior of the corn leafhopper Dalbulus maidis on susceptible and resistant maize hybrids
title_short Probing behavior of the corn leafhopper Dalbulus maidis on susceptible and resistant maize hybrids
title_full Probing behavior of the corn leafhopper Dalbulus maidis on susceptible and resistant maize hybrids
title_fullStr Probing behavior of the corn leafhopper Dalbulus maidis on susceptible and resistant maize hybrids
title_full_unstemmed Probing behavior of the corn leafhopper Dalbulus maidis on susceptible and resistant maize hybrids
title_sort probing behavior of the corn leafhopper dalbulus maidis on susceptible and resistant maize hybrids
publisher PLOS
publishDate 2023
url http://repositorio.unnoba.edu.ar/xmlui/handle/23601/687
work_keys_str_mv AT catalanomariaines probingbehaviorofthecornleafhopperdalbulusmaidisonsusceptibleandresistantmaizehybrids
AT carpanepablodaniel probingbehaviorofthecornleafhopperdalbulusmaidisonsusceptibleandresistantmaizehybrids
_version_ 1850060748375457792
spelling I103-R405-23601-6872025-10-17T21:04:59Z Probing behavior of the corn leafhopper Dalbulus maidis on susceptible and resistant maize hybrids Catalano, María Inés Carpane, Pablo Daniel 0000-0002-8382-7403 0000-0002-6481-2214 EPG Achaparramiento Maíz Interacción planta-insecto Dalbulus maidis The corn leafhopper Dalbulus maidis is the main vector of the pathogens that cause corn stunt, a major disease of maize in the Americas. In line with plant resistance being an efficient tool to control diseases, the findings of a previous work showed that some corn hybrids are resistant to D. maidis. In this work, we assessed the probing behavior of D. maidis on susceptible and resistant corn hybrids using EPG (Electrical Penetration Graph) technology. Feeding of fifteen-day-old, non-inoculative females was recorded for 20 hours, with access to hybrids DK390, DK670, DK79-10, and DK72-10. Compared to the susceptible hybrid DK670, the other hybrids shifted D. maidis probing behavior in a way consistent with plant resistance to insects. This shift consisted of a higher number of probes of short duration, difficulties in attaining phloem ingestion and increase in xylem ingestion. In addition to this common shift in probing behavior, a phloem-located resistance factor was inferred in DK72-10 based on the longer time spent in phloem conditioning to attain phloem ingestion. In contrast, DK390 expressed the highest level of mesophyll and phloem-based resistance, in both cases seen with repeated attempts of short duration, a behavior typically associated with failed attempts to ingest. These findings support and are consistent with previous research, providing useful information to characterize maize hybrids resistant to D. maidis, and consequently to corn stunt. La chicharrita del maíz Dalbulus maidis es el principal vector de los patógenos que causan el achaparramiento del maíz, una de las principales enfermedades del maíz en América. En línea con que la resistencia de las plantas es una herramienta eficaz para controlar las enfermedades, los resultados de un trabajo anterior mostraron que algunos híbridos de maíz son resistentes a D. maidis. En este trabajo, evaluamos el comportamiento de D. maidis en híbridos de maíz susceptibles y resistentes utilizando la tecnología EPG (Gráfico de Penetración Eléctrica). Se registró la alimentación de hembras no inoculantes de quince días de edad durante 20 horas, con acceso a los híbridos DK390, DK670, DK79-10 y DK72-10. En comparación con el híbrido susceptible DK670, los otros híbridos cambiaron el comportamiento de sondeo de D. maidis de forma coherente con la resistencia de la planta a los insectos. Este cambio consistió en un mayor número de sondeos de corta duración, dificultades para lograr la ingestión del floema y aumento de la ingestión del xilema. Además de este cambio común en el comportamiento de sondeo, se dedujo un factor de resistencia localizado en el floema en DK72-10 basado en el mayor tiempo empleado en el acondicionamiento del floema para alcanzar la ingestión del floema. Por el contrario, DK390 expresó el nivel más alto de resistencia basada en el mesófilo y el floema, en ambos casos observados con intentos repetidos de corta duración, un comportamiento típicamente asociado con intentos fallidos de ingestión. Estos hallazgos apoyan y son consistentes con investigaciones previas, proporcionando información útil para caracterizar híbridos de maíz resistentes a D. maidis, y consecuentemente al achaparramiento del maíz. Fil: Carpane, Pablo Daniel. Bayer CropScience; Argentina. Fil: Catalano, Maria Inés. Centro de BioInvestigaciones. Universidad Nacional del Noroeste de la Provincia de Buenos Aires. Comisión de Investigaciones Científicas de la provincia de Buenos Aires. Centro de Investigaciones y Transferencias del Noroeste de la Provincia de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Con referato 2023-12-27T16:55:59Z 2023-12-27T16:55:59Z 2022-05-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion info:ar-repo/semantics/artículo Carpane, P., y Catalano, M. I. (2022). Probing behavior of the corn leafhopper Dalbulus maidis on susceptible and resistant maize hybrids. Plos one, 17(5), e0259481. 1932-6203 http://repositorio.unnoba.edu.ar/xmlui/handle/23601/687 eng https://doi.org/10.1371/journal.pone.0259481 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf application/pdf PLOS PLOS ONE

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