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Maize Resistance to Stem Borers Can Be Modulated by Systemic Maize Responses to Long-Term Stem Tunneling

Limited attention has been paid to maize (Zea mays L.) resistance induced by corn borer damage, although evidence shows that induced defenses have lower resource allocation costs than constitutive defenses. Maize responses to short- and long-term feeding by the Mediterranean corn borer (MCB, Sesamia...

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Autores principales: Rodríguez, Víctor Manuel, Velasco, Pablo, Cao, Ana, Santiago, Rogelio, Malvar, Rosa Ana, Butrón, Ana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7991579/
https://www.ncbi.nlm.nih.gov/pubmed/33777059
http://dx.doi.org/10.3389/fpls.2020.627468
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author Rodríguez, Víctor Manuel
Velasco, Pablo
Cao, Ana
Santiago, Rogelio
Malvar, Rosa Ana
Butrón, Ana
author_facet Rodríguez, Víctor Manuel
Velasco, Pablo
Cao, Ana
Santiago, Rogelio
Malvar, Rosa Ana
Butrón, Ana
author_sort Rodríguez, Víctor Manuel
collection PubMed
description Limited attention has been paid to maize (Zea mays L.) resistance induced by corn borer damage, although evidence shows that induced defenses have lower resource allocation costs than constitutive defenses. Maize responses to short- and long-term feeding by the Mediterranean corn borer (MCB, Sesamia nionagrioides) have been previously studied, but the suggested differences between responses could be due to experimental differences. Therefore, in the current study, a direct comparison between short- and long-term responses has been made. The objectives were (i) to determine changes in the level of antibiosis of the stems induced by feeding of S. nonagrioides larvae for 2days (short-term feeding) and 9days (long-term feeding), (ii) to characterize the metabolome of the stems’ short- and long-term responses to borer feeding, and (iii) to look for metabolic pathways that could modulate plant resistance to MCB. Defenses were progressively induced in the resistant inbred, and constitutive defenses were broken down in the susceptible inbred. Results suggest that the different resistance levels of the two inbreds to stem tunneling by MCB could depend on their ability to establish a systemic response. Based on these results, a high throughput look for specific metabolites implicated in systemic induced resistance to maize stem borers is recommended; the current focus on constitutive defense metabolites has not been successful in finding molecules that would be valuable tools for pest control.
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spelling pubmed-79915792021-03-26 Maize Resistance to Stem Borers Can Be Modulated by Systemic Maize Responses to Long-Term Stem Tunneling Rodríguez, Víctor Manuel Velasco, Pablo Cao, Ana Santiago, Rogelio Malvar, Rosa Ana Butrón, Ana Front Plant Sci Plant Science Limited attention has been paid to maize (Zea mays L.) resistance induced by corn borer damage, although evidence shows that induced defenses have lower resource allocation costs than constitutive defenses. Maize responses to short- and long-term feeding by the Mediterranean corn borer (MCB, Sesamia nionagrioides) have been previously studied, but the suggested differences between responses could be due to experimental differences. Therefore, in the current study, a direct comparison between short- and long-term responses has been made. The objectives were (i) to determine changes in the level of antibiosis of the stems induced by feeding of S. nonagrioides larvae for 2days (short-term feeding) and 9days (long-term feeding), (ii) to characterize the metabolome of the stems’ short- and long-term responses to borer feeding, and (iii) to look for metabolic pathways that could modulate plant resistance to MCB. Defenses were progressively induced in the resistant inbred, and constitutive defenses were broken down in the susceptible inbred. Results suggest that the different resistance levels of the two inbreds to stem tunneling by MCB could depend on their ability to establish a systemic response. Based on these results, a high throughput look for specific metabolites implicated in systemic induced resistance to maize stem borers is recommended; the current focus on constitutive defense metabolites has not been successful in finding molecules that would be valuable tools for pest control. Frontiers Media S.A. 2021-03-11 /pmc/articles/PMC7991579/ /pubmed/33777059 http://dx.doi.org/10.3389/fpls.2020.627468 Text en Copyright © 2021 Rodríguez, Velasco, Cao, Santiago, Malvar and Butrón. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Rodríguez, Víctor Manuel
Velasco, Pablo
Cao, Ana
Santiago, Rogelio
Malvar, Rosa Ana
Butrón, Ana
Maize Resistance to Stem Borers Can Be Modulated by Systemic Maize Responses to Long-Term Stem Tunneling
title Maize Resistance to Stem Borers Can Be Modulated by Systemic Maize Responses to Long-Term Stem Tunneling
title_full Maize Resistance to Stem Borers Can Be Modulated by Systemic Maize Responses to Long-Term Stem Tunneling
title_fullStr Maize Resistance to Stem Borers Can Be Modulated by Systemic Maize Responses to Long-Term Stem Tunneling
title_full_unstemmed Maize Resistance to Stem Borers Can Be Modulated by Systemic Maize Responses to Long-Term Stem Tunneling
title_short Maize Resistance to Stem Borers Can Be Modulated by Systemic Maize Responses to Long-Term Stem Tunneling
title_sort maize resistance to stem borers can be modulated by systemic maize responses to long-term stem tunneling
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7991579/
https://www.ncbi.nlm.nih.gov/pubmed/33777059
http://dx.doi.org/10.3389/fpls.2020.627468
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