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Enhanced yield of pepper plants promoted by soil application of volatiles from cell-free fungal culture filtrates is associated with activation of the beneficial soil microbiota

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dc.contributor.authorBaroja Fernández, Edurne
dc.contributor.authorAlmagro Zabalza, Goizeder
dc.contributor.authorSánchez López, Ángela María
dc.contributor.authorBahaji, Abdellatif
dc.contributor.authorGámez Arcas, Samuel
dc.contributor.authorDiego, Nuria de
dc.contributor.authorDolezal, Karel
dc.contributor.authorMuñoz Pérez, Francisco José
dc.contributor.authorCliment Sanz, Eric
dc.contributor.authorPozueta Romero, Javier
dc.contributor.departmentIdAB. Instituto de Agrobiotecnología / Agrobioteknologiako Institutuaes_ES
dc.contributor.funderGobierno de Navarra / Nafarroako Gobernuaes
dc.date.accessioned2022-04-07T12:10:26Z
dc.date.available2022-04-07T12:10:26Z
dc.date.issued2021
dc.description.abstractPlants communicate with microorganisms by exchanging chemical signals throughout the phytosphere. Such interactions are important not only for plant productivity and fitness, but also for terrestrial ecosystem functioning. It is known that beneficial microorganisms emit diffusible substances including volatile organic compounds (VOCs) that promote growth. Consistently, soil application of cell-free culture filtrates (CF) of beneficial soil and plant-associated microorganisms enhances plant growth and yield. However, how this treatment acts in plants and whether it alters the resident soil microbiota, are largely unknown. In this work we characterized the responses of pepper (Capsicum annuum L.) plants cultured under both greenhouse and open field conditions and of soil microbiota to soil application of CFs of beneficial and phytopathogenic fungi. To evaluate the contribution of VOCs occurring in the CFs to these responses, we characterized the responses of plants and of soil microbiota to application of distillates (DE) of the fungal CFs. CFs and their respective DEs contained the same potentially biogenic VOCs, and application of these extracts enhanced root growth and fruit yield, and altered the nutritional characteristics of fruits. High-throughput amplicon sequencing of bacterial 16S and fungal ITS rRNA genes of the soil microbiota revealed that the CF and DE treatments altered the microbial community compositions, and led to strong enrichment of the populations of the same beneficial bacterial and fungal taxa. Our findings show that CFs of both beneficial and phytopathogenic fungi can be used as biostimulants, and provide evidence that VOCs occurring in the fungal CFs act as mediators of the plants’ responses to soil application of fungal CFs through stimulation of the beneficial soil microbiota.en
dc.description.sponsorshipThis work was supported by the Agencia Estatal de Investigación (AEI) and Fondo Europeo de Desarrollo Regional (Spain) (grants BIO2013-49125-C2-1-P, BIO2016-78747-P, and PID2019-104685GB-100), the Government of Navarra (refs. P1044 AGROESTI, P1004 PROMEBIO, and P1046 MICROBIOME), and the project “Plants as a tool for sustainable global development” (registration number: CZ.02.1.01/0.0/0.0/16_019/0000827) within the program Research, Development and Education (OP RDE).en
dc.format.extent20 p.
dc.format.mimetypeapplication/pdfen
dc.format.mimetypeapplication/zipen
dc.identifier.doi10.3389/fpls.2021.752653
dc.identifier.issn1664-462X
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/42700
dc.language.isoengen
dc.publisherFrontiers Mediaen
dc.relation.ispartofFrontiers in Plant Science, 12, 2021
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-093501-B-C21/ES/en
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-093501-B-C22/ES/en
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104685GB-I00/ES/en
dc.relation.publisherversionhttps://doi.org/10.3389/fpls.2021.752653
dc.rights© 2021 by the authors. Creative Commons Attribution 4.0 Internationalen
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBiostimulanten
dc.subjectFruit yielden
dc.subjectFungal phytopathogenen
dc.subjectPlant growth promoting microorganismen
dc.subjectPlant-microbe interactionen
dc.subjectSoil microbiotaen
dc.subjectVolatile organic compoundsen
dc.titleEnhanced yield of pepper plants promoted by soil application of volatiles from cell-free fungal culture filtrates is associated with activation of the beneficial soil microbiotaen
dc.typeArtículo / Artikuluaes
dc.typeinfo:eu-repo/semantics/articleen
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
dc.type.versionVersión publicada / Argitaratu den bertsioaes
dspace.entity.typePublication
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relation.isAuthorOfPublication.latestForDiscovery0a533d7e-81fb-4439-ad05-2927e96fa923

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