Chitosan Induces Plant Hormones and Defenses in Tomato Root Exudates

Suarez-Fernandez, Marta; Marhuenda Egea, Frutos Carlos; Lopez-Moya, Federico; Arnao, Marino B.; Cabrera-Escribano, Francisca; Nueda, María José; Gunsé, Benet; Lopez-Llorca, Luis Vicente; Lopez-Llorca, Luis Vicente; Lopez-Moya, Federico; Marhuenda Egea, Frutos Carlos; Nueda, María José; Universidad de Alicante. Departamento de Agroquímica y Bioquímica; Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada; Universidad de Alicante. Departamento de Matemáticas; Universidad de Alicante. Instituto Multidisciplinar para el Estudio del Medio "Ramón Margalef"; Grupo de Fotoquímica y Electroquímica de Semiconductores; Fitopatología; Bioquímica Aplicada/Applied Biochemistry; Grupo de Estadística Aplicada

Chitosan Induces Plant Hormones and Defenses in Tomato Root Exudates

2020

In this work, we use electrophysiological and metabolomic tools to determine the role of chitosan as plant defense elicitor in soil for preventing or manage root pests and diseases sustainably. Root exudates include a wide variety of molecules that plants and root microbiota use to communicate in the rhizosphere. Tomato plants were treated with chitosan. Root exudates from tomato plants were analyzed at 3, 10, 20, and 30 days after planting (dap). We found, using high performance liquid chromatography (HPLC) and excitation emission matrix (EEM) fluorescence, that chitosan induces plant hormones, lipid signaling and defense compounds in tomato root exudates, including phenolics. High doses of chitosan induce membrane depolarization and affect membrane integrity. 1H-NMR showed the dynamic of exudation, detecting the largest number of signals in 20 dap root exudates. Root exudates from plants irrigated with chitosan inhibit ca. twofold growth kinetics of the tomato root parasitic fungus Fusarium oxysporum f. sp. radicis-lycopersici. and reduced ca. 1.5-fold egg hatching of the root-knot nematode Meloidogyne javanica.

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This work was supported by AGL 2015 66833-R Grant from the Spanish Ministry of Economy and Competitiveness and H2020 MUSA 727624 European Project.

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AGROVOC Keywords

botánica chitosan plant hormones root exudates

Bibliographic information

Publisher

Frontiers Media

Other Subjects

Plant defenses; Membrane potential; Bioquímica y biología molecular; Lipid signaling; Estadística e investigación operativa; Soil-borne pathogens

Language

English

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application/pdf

License

© 2020 Suarez-Fernandez, Marhuenda-Egea, Lopez-Moya, Arnao, Cabrera-Escribano, Nueda, Gunsé and Lopez-Llorca. 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., info:eu-repo/semantics/openAccess

ISSN

1664-462X

Type

Journal Article; Journal Part

In AGRIS since: 2024-11-28

Modification date: 2025-09-02

Format: Dublin Core

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This bibliographic record has been provided by Universitat d'Alacant

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DOI http://hdl.handle.net/10045/110077

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Chitosan Induces Plant Hormones and Defenses in Tomato Root Exudates

2020

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