Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous Communities

Wheat production around the world is severely compromised by the occurrence of “take-all” disease, which is caused by the soil-borne pathogen Gaeumannomyces graminis var. tritici (Ggt). In this context, suppressive soils are those environments in which plants comparatively suffer less soil-borne pat...

Full description

Bibliographic Details
Authors: Durán, Paola, Jorquera, Milko, Viscardi, Sharon, Carrión, Víctor J., Mora, María de la Luz, Pozo Jiménez, María José
Format: article
Status:Published version
Publication Date:2017
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/167520
Online Access:http://hdl.handle.net/10261/167520
Access Level:Open access
Keyword:Gaeumannomyces graminis
Mapuche
Microbial communities
Suppressive soils
Triticum aestivum
Take-all disease
Biocontrol
id ES_65d15afec16f8f03e2963fe9d2149eef
oai_identifier_str oai:digital.csic.es:10261/167520
network_acronym_str ES
network_name_str España
repository_id_str
spelling Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous CommunitiesDurán, PaolaJorquera, MilkoViscardi, SharonCarrión, Víctor J.Mora, María de la LuzPozo Jiménez, María JoséGaeumannomyces graminisMapucheMicrobial communitiesSuppressive soilsTriticum aestivumTake-all diseaseBiocontrolWheat production around the world is severely compromised by the occurrence of “take-all” disease, which is caused by the soil-borne pathogen Gaeumannomyces graminis var. tritici (Ggt). In this context, suppressive soils are those environments in which plants comparatively suffer less soil-borne pathogen diseases than expected, owing to native soil microorganism activities. In southern Chile, where 85% of the national cereal production takes place, several studies have suggested the existence of suppressive soils under extensive wheat cropping. Thus, this study aimed to screen Ggt-suppressive soil occurrence in 16 locations managed by indigenous “Mapuche” communities, using extensive wheat cropping for more than 10 years. Ggt growth inhibition in vitro screenings allowed the identification of nine putative suppressive soils. Six of these soils, including Andisols and Ultisols, were confirmed to be suppressive, since they reduced take-all disease in wheat plants growing under greenhouse conditions. Suppressiveness was lost upon soil sterilization, and recovered by adding 1% of the natural soil, hence confirming that suppressiveness was closely associated to the soil microbiome community composition. Our results demonstrate that long-term extensive wheat cropping, established by small Mapuche communities, can generate suppressive soils that can be used as effective microorganism sources for take-all disease biocontrol. Accordingly, suppressive soil identification and characterization are key steps for the development of environmentally-friendly and efficient biotechnological applications for soil-borne disease control.This study was supported by the Comisión Nacional de Investigación Científica and Tecnológica (CONICYT), FONDECYT Iniciation Project No. 11150540 from Chilean Government. MJ thanks the support by FONDECYT No. 1160302. We acknowledge support of the publication fee by the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI).Peer reviewedFrontiers MediaCSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)Comisión Nacional de Investigación Científica y Tecnológica (Chile)Fondo Nacional de Desarrollo Científico y Tecnológico (Chile)Gobierno de ChileConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201820182017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/167520reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3389/fmicb.2017.01552Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1675202026-05-22T06:33:51Z
dc.title.none.fl_str_mv Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous Communities
title Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous Communities
spellingShingle Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous Communities
Durán, Paola
Gaeumannomyces graminis
Mapuche
Microbial communities
Suppressive soils
Triticum aestivum
Take-all disease
Biocontrol
title_short Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous Communities
title_full Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous Communities
title_fullStr Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous Communities
title_full_unstemmed Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous Communities
title_sort Screening and Characterization of Potentially Suppressive Soils against Gaeumannomyces graminis under Extensive Wheat Cropping by Chilean Indigenous Communities
dc.creator.none.fl_str_mv Durán, Paola
Jorquera, Milko
Viscardi, Sharon
Carrión, Víctor J.
Mora, María de la Luz
Pozo Jiménez, María José
author Durán, Paola
author_facet Durán, Paola
Jorquera, Milko
Viscardi, Sharon
Carrión, Víctor J.
Mora, María de la Luz
Pozo Jiménez, María José
author_role author
author2 Jorquera, Milko
Viscardi, Sharon
Carrión, Víctor J.
Mora, María de la Luz
Pozo Jiménez, María José
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv CSIC - Unidad de Recursos de Información Científica para la Investigación (URICI)
Comisión Nacional de Investigación Científica y Tecnológica (Chile)
Fondo Nacional de Desarrollo Científico y Tecnológico (Chile)
Gobierno de Chile
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Gaeumannomyces graminis
Mapuche
Microbial communities
Suppressive soils
Triticum aestivum
Take-all disease
Biocontrol
topic Gaeumannomyces graminis
Mapuche
Microbial communities
Suppressive soils
Triticum aestivum
Take-all disease
Biocontrol
description Wheat production around the world is severely compromised by the occurrence of “take-all” disease, which is caused by the soil-borne pathogen Gaeumannomyces graminis var. tritici (Ggt). In this context, suppressive soils are those environments in which plants comparatively suffer less soil-borne pathogen diseases than expected, owing to native soil microorganism activities. In southern Chile, where 85% of the national cereal production takes place, several studies have suggested the existence of suppressive soils under extensive wheat cropping. Thus, this study aimed to screen Ggt-suppressive soil occurrence in 16 locations managed by indigenous “Mapuche” communities, using extensive wheat cropping for more than 10 years. Ggt growth inhibition in vitro screenings allowed the identification of nine putative suppressive soils. Six of these soils, including Andisols and Ultisols, were confirmed to be suppressive, since they reduced take-all disease in wheat plants growing under greenhouse conditions. Suppressiveness was lost upon soil sterilization, and recovered by adding 1% of the natural soil, hence confirming that suppressiveness was closely associated to the soil microbiome community composition. Our results demonstrate that long-term extensive wheat cropping, established by small Mapuche communities, can generate suppressive soils that can be used as effective microorganism sources for take-all disease biocontrol. Accordingly, suppressive soil identification and characterization are key steps for the development of environmentally-friendly and efficient biotechnological applications for soil-borne disease control.
publishDate 2017
dc.date.none.fl_str_mv 2017
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/167520
url http://hdl.handle.net/10261/167520
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3389/fmicb.2017.01552
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869409770792812544
score 15,812455

Similar Items