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The exposure of field-grown maize seedlings to weed volatiles affects their growth and seed quality

Plants exposed to volatiles emitted from artificially damaged conspecific or heterospecific plants exhibit increased resistance to herbivorous insects. Here, we examined whether volatiles from artificially damaged weeds affect maize growth and reproduction. Seven days after germination, maize seedli...

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Autores principales: Sakurai, Yusuke, Ishizaki, Satomi, Izumi, Shota, Yoshida, Takuma, Shiojiri, Kaori, Takabayashi, Junji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10464949/
https://www.ncbi.nlm.nih.gov/pubmed/37649992
http://dx.doi.org/10.3389/fpls.2023.1141338
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author Sakurai, Yusuke
Ishizaki, Satomi
Izumi, Shota
Yoshida, Takuma
Shiojiri, Kaori
Takabayashi, Junji
author_facet Sakurai, Yusuke
Ishizaki, Satomi
Izumi, Shota
Yoshida, Takuma
Shiojiri, Kaori
Takabayashi, Junji
author_sort Sakurai, Yusuke
collection PubMed
description Plants exposed to volatiles emitted from artificially damaged conspecific or heterospecific plants exhibit increased resistance to herbivorous insects. Here, we examined whether volatiles from artificially damaged weeds affect maize growth and reproduction. Seven days after germination, maize seedlings were exposed to volatiles emitted by artificially damaged mugwort (Artemisia indica var. maximowiczii) or tall goldenrod (Solidago altissima) plants either separately, or as a mixture of the two, for seven days. Unexposed seedlings were used as controls. Treated and control seedlings were cultivated in an experimental field without any insecticides applied. Plants exposed to either of the three volatile treatments sustained significantly less damage than controls. Additionally, seedlings exposed to either goldenrod or mixed volatiles produced more leaves and tillers than control plants. Furthermore, a significant increase in the number of ears was observed in plants exposed to the volatile mixture. In all treated plants, ear sugar content was significantly higher than that in the controls. Further, we cultivated seedlings that were either exposed to the volatile mixture or unexposed, under the conventional farming method using pesticides. Similar significant differences were observed for sugar content, number of tillers, leaves, damaged leaves, and ears. Laboratory experiments were conducted to further evaluate the mechanisms involved in the improved performance of volatile-treated plants. A significant reduction in the growth of common armyworm (Mythimna separata) larvae was observed when maize plants were exposed to the volatile mixture. This treatment did not affect the amount of jasmonic acid in the seedlings, whereas salicylic acid content increased upon exposure. The characteristic differences in chemical composition of mugwort and goldenrod volatiles were confirmed and, in turn, the volatile mixture differed significantly from the volatiles of either species.
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spelling pubmed-104649492023-08-30 The exposure of field-grown maize seedlings to weed volatiles affects their growth and seed quality Sakurai, Yusuke Ishizaki, Satomi Izumi, Shota Yoshida, Takuma Shiojiri, Kaori Takabayashi, Junji Front Plant Sci Plant Science Plants exposed to volatiles emitted from artificially damaged conspecific or heterospecific plants exhibit increased resistance to herbivorous insects. Here, we examined whether volatiles from artificially damaged weeds affect maize growth and reproduction. Seven days after germination, maize seedlings were exposed to volatiles emitted by artificially damaged mugwort (Artemisia indica var. maximowiczii) or tall goldenrod (Solidago altissima) plants either separately, or as a mixture of the two, for seven days. Unexposed seedlings were used as controls. Treated and control seedlings were cultivated in an experimental field without any insecticides applied. Plants exposed to either of the three volatile treatments sustained significantly less damage than controls. Additionally, seedlings exposed to either goldenrod or mixed volatiles produced more leaves and tillers than control plants. Furthermore, a significant increase in the number of ears was observed in plants exposed to the volatile mixture. In all treated plants, ear sugar content was significantly higher than that in the controls. Further, we cultivated seedlings that were either exposed to the volatile mixture or unexposed, under the conventional farming method using pesticides. Similar significant differences were observed for sugar content, number of tillers, leaves, damaged leaves, and ears. Laboratory experiments were conducted to further evaluate the mechanisms involved in the improved performance of volatile-treated plants. A significant reduction in the growth of common armyworm (Mythimna separata) larvae was observed when maize plants were exposed to the volatile mixture. This treatment did not affect the amount of jasmonic acid in the seedlings, whereas salicylic acid content increased upon exposure. The characteristic differences in chemical composition of mugwort and goldenrod volatiles were confirmed and, in turn, the volatile mixture differed significantly from the volatiles of either species. Frontiers Media S.A. 2023-08-15 /pmc/articles/PMC10464949/ /pubmed/37649992 http://dx.doi.org/10.3389/fpls.2023.1141338 Text en Copyright © 2023 Sakurai, Ishizaki, Izumi, Yoshida, Shiojiri and Takabayashi https://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
Sakurai, Yusuke
Ishizaki, Satomi
Izumi, Shota
Yoshida, Takuma
Shiojiri, Kaori
Takabayashi, Junji
The exposure of field-grown maize seedlings to weed volatiles affects their growth and seed quality
title The exposure of field-grown maize seedlings to weed volatiles affects their growth and seed quality
title_full The exposure of field-grown maize seedlings to weed volatiles affects their growth and seed quality
title_fullStr The exposure of field-grown maize seedlings to weed volatiles affects their growth and seed quality
title_full_unstemmed The exposure of field-grown maize seedlings to weed volatiles affects their growth and seed quality
title_short The exposure of field-grown maize seedlings to weed volatiles affects their growth and seed quality
title_sort exposure of field-grown maize seedlings to weed volatiles affects their growth and seed quality
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10464949/
https://www.ncbi.nlm.nih.gov/pubmed/37649992
http://dx.doi.org/10.3389/fpls.2023.1141338
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