Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogens

Autores
Perelló, Analía; Simón, María Rosa; Sisterna, Marina Noemí; Cordo, Cristina Alicia; Arambarri, A.
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Micro-organisms on the leaf surface of Triticum aestivum L. were examined. The wheat leaves were collected from experimental fields in six localities of Buenos Aires Province (Argentina). Thirteen mycelial fungi, two yeasts and a bacterium belonging to the genus Bacillus (Bw/97) were isolated from wheat foliage and evaluated for effectiveness in suppressing Alternaria triticimaculans, Bipolaris sorokiniana, Drechslera tritici-repentis and Septoria tritici under controlled conditions. Antagonistic activity was examined with the dual cultures method on potato dextrose agar media among 10 of these micro-organisms against the four foliar pathogens. Mycelial growth inhibition and colony interactions in all possible paired combinations were evaluated. The results are discussed in relation to the biological control of these cereal pathogens. In this work, the importance of indigenous antagonists in wheat disease suppression and the possibility of managing ecosystem conditions in order to enhance natural biological control is suggested. In our assays, Aspergillus niger, Bw/97 and Nigrospora sphaerica showed a strong inhibitory effect in vitro against the average of the four necrotrophic fungi tested and justify further evaluation for biocontrol of wheat foliar pathogens. The others antagonists ranked variably among the assays. Greenhouse bioassays and field evaluations using these isolates are currently under investigation.
Materia
Agronomía, reproducción y protección de plantas
whear
biological control
phyIloplane
foliar pathogens
antagonism
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
CIC Digital (CICBA)
Institución
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
OAI Identificador
oai:digital.cic.gba.gob.ar:11746/6964

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network_acronym_str CICBA
repository_id_str 9441
network_name_str CIC Digital (CICBA)
spelling Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogensPerelló, AnalíaSimón, María RosaSisterna, Marina NoemíCordo, Cristina AliciaArambarri, A.Agronomía, reproducción y protección de plantaswhearbiological controlphyIloplanefoliar pathogensantagonismMicro-organisms on the leaf surface of Triticum aestivum L. were examined. The wheat leaves were collected from experimental fields in six localities of Buenos Aires Province (Argentina). Thirteen mycelial fungi, two yeasts and a bacterium belonging to the genus Bacillus (Bw/97) were isolated from wheat foliage and evaluated for effectiveness in suppressing Alternaria triticimaculans, Bipolaris sorokiniana, Drechslera tritici-repentis and Septoria tritici under controlled conditions. Antagonistic activity was examined with the dual cultures method on potato dextrose agar media among 10 of these micro-organisms against the four foliar pathogens. Mycelial growth inhibition and colony interactions in all possible paired combinations were evaluated. The results are discussed in relation to the biological control of these cereal pathogens. In this work, the importance of indigenous antagonists in wheat disease suppression and the possibility of managing ecosystem conditions in order to enhance natural biological control is suggested. In our assays, Aspergillus niger, Bw/97 and Nigrospora sphaerica showed a strong inhibitory effect in vitro against the average of the four necrotrophic fungi tested and justify further evaluation for biocontrol of wheat foliar pathogens. The others antagonists ranked variably among the assays. Greenhouse bioassays and field evaluations using these isolates are currently under investigation.2001-05-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/6964enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/reponame:CIC Digital (CICBA)instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Airesinstacron:CICBA2025-09-29T13:40:04Zoai:digital.cic.gba.gob.ar:11746/6964Institucionalhttp://digital.cic.gba.gob.arOrganismo científico-tecnológicoNo correspondehttp://digital.cic.gba.gob.ar/oai/snrdmarisa.degiusti@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:94412025-09-29 13:40:04.335CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse
dc.title.none.fl_str_mv Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogens
title Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogens
spellingShingle Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogens
Perelló, Analía
Agronomía, reproducción y protección de plantas
whear
biological control
phyIloplane
foliar pathogens
antagonism
title_short Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogens
title_full Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogens
title_fullStr Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogens
title_full_unstemmed Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogens
title_sort Microflora of wheat (Triticum aestivum L.) in Buenos Aires Province (Argentina) and its possible significance in biological control of foliar pathogens
dc.creator.none.fl_str_mv Perelló, Analía
Simón, María Rosa
Sisterna, Marina Noemí
Cordo, Cristina Alicia
Arambarri, A.
author Perelló, Analía
author_facet Perelló, Analía
Simón, María Rosa
Sisterna, Marina Noemí
Cordo, Cristina Alicia
Arambarri, A.
author_role author
author2 Simón, María Rosa
Sisterna, Marina Noemí
Cordo, Cristina Alicia
Arambarri, A.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Agronomía, reproducción y protección de plantas
whear
biological control
phyIloplane
foliar pathogens
antagonism
topic Agronomía, reproducción y protección de plantas
whear
biological control
phyIloplane
foliar pathogens
antagonism
dc.description.none.fl_txt_mv Micro-organisms on the leaf surface of Triticum aestivum L. were examined. The wheat leaves were collected from experimental fields in six localities of Buenos Aires Province (Argentina). Thirteen mycelial fungi, two yeasts and a bacterium belonging to the genus Bacillus (Bw/97) were isolated from wheat foliage and evaluated for effectiveness in suppressing Alternaria triticimaculans, Bipolaris sorokiniana, Drechslera tritici-repentis and Septoria tritici under controlled conditions. Antagonistic activity was examined with the dual cultures method on potato dextrose agar media among 10 of these micro-organisms against the four foliar pathogens. Mycelial growth inhibition and colony interactions in all possible paired combinations were evaluated. The results are discussed in relation to the biological control of these cereal pathogens. In this work, the importance of indigenous antagonists in wheat disease suppression and the possibility of managing ecosystem conditions in order to enhance natural biological control is suggested. In our assays, Aspergillus niger, Bw/97 and Nigrospora sphaerica showed a strong inhibitory effect in vitro against the average of the four necrotrophic fungi tested and justify further evaluation for biocontrol of wheat foliar pathogens. The others antagonists ranked variably among the assays. Greenhouse bioassays and field evaluations using these isolates are currently under investigation.
description Micro-organisms on the leaf surface of Triticum aestivum L. were examined. The wheat leaves were collected from experimental fields in six localities of Buenos Aires Province (Argentina). Thirteen mycelial fungi, two yeasts and a bacterium belonging to the genus Bacillus (Bw/97) were isolated from wheat foliage and evaluated for effectiveness in suppressing Alternaria triticimaculans, Bipolaris sorokiniana, Drechslera tritici-repentis and Septoria tritici under controlled conditions. Antagonistic activity was examined with the dual cultures method on potato dextrose agar media among 10 of these micro-organisms against the four foliar pathogens. Mycelial growth inhibition and colony interactions in all possible paired combinations were evaluated. The results are discussed in relation to the biological control of these cereal pathogens. In this work, the importance of indigenous antagonists in wheat disease suppression and the possibility of managing ecosystem conditions in order to enhance natural biological control is suggested. In our assays, Aspergillus niger, Bw/97 and Nigrospora sphaerica showed a strong inhibitory effect in vitro against the average of the four necrotrophic fungi tested and justify further evaluation for biocontrol of wheat foliar pathogens. The others antagonists ranked variably among the assays. Greenhouse bioassays and field evaluations using these isolates are currently under investigation.
publishDate 2001
dc.date.none.fl_str_mv 2001-05-15
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://digital.cic.gba.gob.ar/handle/11746/6964
url https://digital.cic.gba.gob.ar/handle/11746/6964
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:CIC Digital (CICBA)
instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
reponame_str CIC Digital (CICBA)
collection CIC Digital (CICBA)
instname_str Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron_str CICBA
institution CICBA
repository.name.fl_str_mv CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
repository.mail.fl_str_mv marisa.degiusti@sedici.unlp.edu.ar
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