Aboveground Herbivory Influences Belowground Defense Responses in Maize

The European corn borer (ECB; Ostrinia nubilalis) is an economically damaging insect pest of maize (Zea mays L.), an important cereal crop widely grown globally. Among inbred lines, the maize genotype Mp708 has shown resistance to diverse herbivorous insects, although several aspects of the defense...

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Autores principales: Lise Pingault, Saumik Basu, Prince Zogli, W. Paul Williams, Nathan Palmer, Gautam Sarath, Joe Louis
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Lenguaje:EN
Publicado: Frontiers Media S.A. 2021
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spelling oai:doaj.org-article:9fd3936a37914531a06e114314ade8212021-11-10T08:34:04ZAboveground Herbivory Influences Belowground Defense Responses in Maize2296-701X10.3389/fevo.2021.765940https://doaj.org/article/9fd3936a37914531a06e114314ade8212021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fevo.2021.765940/fullhttps://doaj.org/toc/2296-701XThe European corn borer (ECB; Ostrinia nubilalis) is an economically damaging insect pest of maize (Zea mays L.), an important cereal crop widely grown globally. Among inbred lines, the maize genotype Mp708 has shown resistance to diverse herbivorous insects, although several aspects of the defense mechanisms of Mp708 plants are yet to be explored. Here, the changes in root physiology arising from short-term feeding by ECB on the shoot tissues of Mp708 plants was evaluated directly using transcriptomics, and indirectly by monitoring changes in growth of western corn rootworm (WCR; Diabrotica virgifera virgifera) larvae. Mp708 defense responses negatively impacted both ECB and WCR larval weights, providing evidence for changes in root physiology in response to ECB feeding on shoot tissues. There was a significant downregulation of genes in the root tissues following short-term ECB feeding, including genes needed for direct defense (e.g., proteinase inhibitors and chitinases). Our transcriptomic analysis also revealed specific regulation of the genes involved in hormonal and metabolite pathways in the roots of Mp708 plants subjected to ECB herbivory. These data provide support for the long-distance signaling-mediated defense in Mp708 plants and suggest that altered metabolite profiles of roots in response to ECB feeding of shoots likely negatively impacted WCR growth.Lise PingaultSaumik BasuPrince ZogliW. Paul WilliamsNathan PalmerGautam SarathGautam SarathJoe LouisJoe LouisFrontiers Media S.A.articlemaizeMp708European corn borerRNA-seqphytohormonesrootsEvolutionQH359-425EcologyQH540-549.5ENFrontiers in Ecology and Evolution, Vol 9 (2021)
institution DOAJ
collection DOAJ
language EN
topic maize
Mp708
European corn borer
RNA-seq
phytohormones
roots
Evolution
QH359-425
Ecology
QH540-549.5
spellingShingle maize
Mp708
European corn borer
RNA-seq
phytohormones
roots
Evolution
QH359-425
Ecology
QH540-549.5
Lise Pingault
Saumik Basu
Prince Zogli
W. Paul Williams
Nathan Palmer
Gautam Sarath
Gautam Sarath
Joe Louis
Joe Louis
Aboveground Herbivory Influences Belowground Defense Responses in Maize
description The European corn borer (ECB; Ostrinia nubilalis) is an economically damaging insect pest of maize (Zea mays L.), an important cereal crop widely grown globally. Among inbred lines, the maize genotype Mp708 has shown resistance to diverse herbivorous insects, although several aspects of the defense mechanisms of Mp708 plants are yet to be explored. Here, the changes in root physiology arising from short-term feeding by ECB on the shoot tissues of Mp708 plants was evaluated directly using transcriptomics, and indirectly by monitoring changes in growth of western corn rootworm (WCR; Diabrotica virgifera virgifera) larvae. Mp708 defense responses negatively impacted both ECB and WCR larval weights, providing evidence for changes in root physiology in response to ECB feeding on shoot tissues. There was a significant downregulation of genes in the root tissues following short-term ECB feeding, including genes needed for direct defense (e.g., proteinase inhibitors and chitinases). Our transcriptomic analysis also revealed specific regulation of the genes involved in hormonal and metabolite pathways in the roots of Mp708 plants subjected to ECB herbivory. These data provide support for the long-distance signaling-mediated defense in Mp708 plants and suggest that altered metabolite profiles of roots in response to ECB feeding of shoots likely negatively impacted WCR growth.
format article
author Lise Pingault
Saumik Basu
Prince Zogli
W. Paul Williams
Nathan Palmer
Gautam Sarath
Gautam Sarath
Joe Louis
Joe Louis
author_facet Lise Pingault
Saumik Basu
Prince Zogli
W. Paul Williams
Nathan Palmer
Gautam Sarath
Gautam Sarath
Joe Louis
Joe Louis
author_sort Lise Pingault
title Aboveground Herbivory Influences Belowground Defense Responses in Maize
title_short Aboveground Herbivory Influences Belowground Defense Responses in Maize
title_full Aboveground Herbivory Influences Belowground Defense Responses in Maize
title_fullStr Aboveground Herbivory Influences Belowground Defense Responses in Maize
title_full_unstemmed Aboveground Herbivory Influences Belowground Defense Responses in Maize
title_sort aboveground herbivory influences belowground defense responses in maize
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/9fd3936a37914531a06e114314ade821
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