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Herbivory-induced systemic signals are likely to be evolutionarily conserved in euphyllophytes
Herbivory-induced systemic signaling has been demonstrated in monocots and dicots, and is essential for plant defense against insects. However, the nature and evolution of herbivory-induced systemic signals remain unclear. Grafting is widely used for studying systemic signaling; however, grafting be...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8547156/ https://www.ncbi.nlm.nih.gov/pubmed/34293107 http://dx.doi.org/10.1093/jxb/erab349 |
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author | Lei, Yunting Xu, Yuxing Zhang, Jingxiong Song, Juan Wu, Jianqiang |
author_facet | Lei, Yunting Xu, Yuxing Zhang, Jingxiong Song, Juan Wu, Jianqiang |
author_sort | Lei, Yunting |
collection | PubMed |
description | Herbivory-induced systemic signaling has been demonstrated in monocots and dicots, and is essential for plant defense against insects. However, the nature and evolution of herbivory-induced systemic signals remain unclear. Grafting is widely used for studying systemic signaling; however, grafting between dicot plants from different families is difficult, and grafting is impossible for monocots. In this study, we took advantage of dodder’s extraordinary capability of parasitizing various plant species. Field dodder (Cuscuta campestris) was employed to connect pairs of species that are phylogenetically very distant, ranging from fern to monocot and dicot plants, and so determine whether interplant signaling occurs after simulated herbivory. It was found that simulated herbivory-induced systemic signals can be transferred by dodder between a monocot and a dicot plant and even between a fern and a dicot plant, and the plants that received the systemic signals all exhibited elevated defenses. Thus, we inferred that the herbivory-induced systemic signals are likely to be evolutionarily well conserved among vascular plants. Importantly, we also demonstrate that the jasmonate pathway is probably an ancient regulator of the biosynthesis and/or transport of systemic signals in vascular plants. These findings provide new insight into the nature and evolution of systemic signaling. |
format | Online Article Text |
id | pubmed-8547156 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-85471562021-10-27 Herbivory-induced systemic signals are likely to be evolutionarily conserved in euphyllophytes Lei, Yunting Xu, Yuxing Zhang, Jingxiong Song, Juan Wu, Jianqiang J Exp Bot Research Papers Herbivory-induced systemic signaling has been demonstrated in monocots and dicots, and is essential for plant defense against insects. However, the nature and evolution of herbivory-induced systemic signals remain unclear. Grafting is widely used for studying systemic signaling; however, grafting between dicot plants from different families is difficult, and grafting is impossible for monocots. In this study, we took advantage of dodder’s extraordinary capability of parasitizing various plant species. Field dodder (Cuscuta campestris) was employed to connect pairs of species that are phylogenetically very distant, ranging from fern to monocot and dicot plants, and so determine whether interplant signaling occurs after simulated herbivory. It was found that simulated herbivory-induced systemic signals can be transferred by dodder between a monocot and a dicot plant and even between a fern and a dicot plant, and the plants that received the systemic signals all exhibited elevated defenses. Thus, we inferred that the herbivory-induced systemic signals are likely to be evolutionarily well conserved among vascular plants. Importantly, we also demonstrate that the jasmonate pathway is probably an ancient regulator of the biosynthesis and/or transport of systemic signals in vascular plants. These findings provide new insight into the nature and evolution of systemic signaling. Oxford University Press 2021-07-22 /pmc/articles/PMC8547156/ /pubmed/34293107 http://dx.doi.org/10.1093/jxb/erab349 Text en © The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Experimental Biology. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Papers Lei, Yunting Xu, Yuxing Zhang, Jingxiong Song, Juan Wu, Jianqiang Herbivory-induced systemic signals are likely to be evolutionarily conserved in euphyllophytes |
title | Herbivory-induced systemic signals are likely to be evolutionarily conserved in euphyllophytes |
title_full | Herbivory-induced systemic signals are likely to be evolutionarily conserved in euphyllophytes |
title_fullStr | Herbivory-induced systemic signals are likely to be evolutionarily conserved in euphyllophytes |
title_full_unstemmed | Herbivory-induced systemic signals are likely to be evolutionarily conserved in euphyllophytes |
title_short | Herbivory-induced systemic signals are likely to be evolutionarily conserved in euphyllophytes |
title_sort | herbivory-induced systemic signals are likely to be evolutionarily conserved in euphyllophytes |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8547156/ https://www.ncbi.nlm.nih.gov/pubmed/34293107 http://dx.doi.org/10.1093/jxb/erab349 |
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