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Four-Chlorophenoxyacetic Acid Treatment Induces the Defense Resistance of Rice to White-Backed Planthopper Sogatella furcifera

Chemical elicitors can increase plant defense against herbivorous insects and pathogens. The use of synthetic chemical elicitors is likely to be an alternative to traditional pesticides for crop pest control. However, only a few synthetic chemicals are reported to protect plants by regulating signal...

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Autores principales: Wang, Wanwan, Rui, Haiyun, Yu, Lei, Jin, Nuo, Liu, Wan, Guo, Chen, Cheng, Yumeng, Lou, Yonggen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10648403/
https://www.ncbi.nlm.nih.gov/pubmed/37958711
http://dx.doi.org/10.3390/ijms242115722
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author Wang, Wanwan
Rui, Haiyun
Yu, Lei
Jin, Nuo
Liu, Wan
Guo, Chen
Cheng, Yumeng
Lou, Yonggen
author_facet Wang, Wanwan
Rui, Haiyun
Yu, Lei
Jin, Nuo
Liu, Wan
Guo, Chen
Cheng, Yumeng
Lou, Yonggen
author_sort Wang, Wanwan
collection PubMed
description Chemical elicitors can increase plant defense against herbivorous insects and pathogens. The use of synthetic chemical elicitors is likely to be an alternative to traditional pesticides for crop pest control. However, only a few synthetic chemicals are reported to protect plants by regulating signaling pathways, increasing the levels of defense metabolites and interfering with insect feeding. Here, we found that the exogenous application of a phenoxycarboxylic compound, 4-chlorophenoxyacetic acid (4-CPA), can induce chemical defenses to protect rice plants from white-backed planthoppers (WBPH, Sogatella furcifera). Four-CPA was rapidly taken up by plant roots and degraded to 4-chlorophenol (4-CP). Four-CPA treatment modulated the activity of peroxidase (POD) and directly induced the deposition of lignin-like polymers using hydrogen peroxide (H(2)O(2)) as the electron acceptor. The polymers, which are thought to prevent the planthopper’s stylet from reaching the phloem, were broken down by WBPH nymphs. Meanwhile, 4-CPA increased the levels of flavonoids and phenolamines (PAs). The increased flavonoids and PAs, together with the degradation product of the polymers, avoided nymphal feeding and prolonged the nymphal period for 1 day. These results indicate that 4-CPA has the potential to be used as a chemical elicitor to protect rice from planthoppers. Moreover, these findings also open a pathway for molecule structure design of phenoxycarboxylic compounds as chemical elicitors.
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spelling pubmed-106484032023-10-29 Four-Chlorophenoxyacetic Acid Treatment Induces the Defense Resistance of Rice to White-Backed Planthopper Sogatella furcifera Wang, Wanwan Rui, Haiyun Yu, Lei Jin, Nuo Liu, Wan Guo, Chen Cheng, Yumeng Lou, Yonggen Int J Mol Sci Article Chemical elicitors can increase plant defense against herbivorous insects and pathogens. The use of synthetic chemical elicitors is likely to be an alternative to traditional pesticides for crop pest control. However, only a few synthetic chemicals are reported to protect plants by regulating signaling pathways, increasing the levels of defense metabolites and interfering with insect feeding. Here, we found that the exogenous application of a phenoxycarboxylic compound, 4-chlorophenoxyacetic acid (4-CPA), can induce chemical defenses to protect rice plants from white-backed planthoppers (WBPH, Sogatella furcifera). Four-CPA was rapidly taken up by plant roots and degraded to 4-chlorophenol (4-CP). Four-CPA treatment modulated the activity of peroxidase (POD) and directly induced the deposition of lignin-like polymers using hydrogen peroxide (H(2)O(2)) as the electron acceptor. The polymers, which are thought to prevent the planthopper’s stylet from reaching the phloem, were broken down by WBPH nymphs. Meanwhile, 4-CPA increased the levels of flavonoids and phenolamines (PAs). The increased flavonoids and PAs, together with the degradation product of the polymers, avoided nymphal feeding and prolonged the nymphal period for 1 day. These results indicate that 4-CPA has the potential to be used as a chemical elicitor to protect rice from planthoppers. Moreover, these findings also open a pathway for molecule structure design of phenoxycarboxylic compounds as chemical elicitors. MDPI 2023-10-29 /pmc/articles/PMC10648403/ /pubmed/37958711 http://dx.doi.org/10.3390/ijms242115722 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Wanwan
Rui, Haiyun
Yu, Lei
Jin, Nuo
Liu, Wan
Guo, Chen
Cheng, Yumeng
Lou, Yonggen
Four-Chlorophenoxyacetic Acid Treatment Induces the Defense Resistance of Rice to White-Backed Planthopper Sogatella furcifera
title Four-Chlorophenoxyacetic Acid Treatment Induces the Defense Resistance of Rice to White-Backed Planthopper Sogatella furcifera
title_full Four-Chlorophenoxyacetic Acid Treatment Induces the Defense Resistance of Rice to White-Backed Planthopper Sogatella furcifera
title_fullStr Four-Chlorophenoxyacetic Acid Treatment Induces the Defense Resistance of Rice to White-Backed Planthopper Sogatella furcifera
title_full_unstemmed Four-Chlorophenoxyacetic Acid Treatment Induces the Defense Resistance of Rice to White-Backed Planthopper Sogatella furcifera
title_short Four-Chlorophenoxyacetic Acid Treatment Induces the Defense Resistance of Rice to White-Backed Planthopper Sogatella furcifera
title_sort four-chlorophenoxyacetic acid treatment induces the defense resistance of rice to white-backed planthopper sogatella furcifera
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10648403/
https://www.ncbi.nlm.nih.gov/pubmed/37958711
http://dx.doi.org/10.3390/ijms242115722
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