Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum)
- Autores
- Perelló, Analía; Simón, María Rosa; Arambarri, A.M.; Cordo, Cristina Alicia
- Año de publicación
- 2001
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión enviada
- Descripción
- Ten microorganisms of the epiphytic microflora of wheat leaves in Buenos Aires Province, Argentina, were evaluated under greenhouse conditions as potential biocontrol agents of the pathogensAlternaria triticimaculans, Bipolaris sorokiniana, Drechslera tritici-repentisandSeptoria triticiin two application sequences (prior to or together with the pathogens). The antagonists significantly reduced the expression of the diseases on wheat plants compared with control plants not inoculated with the antagonists. Maximum percentage of reduction of the necrotic lesion area (NLA) (40–55%) ofS. triticiresulted whenCryptococcussp.,Rhodotorula rubraandPenicillium lilacinwnwere sprayed on leaves prior to inoculations with the pathogen.Bacillussp.,Cryptococcussp.,Fusarium moniliformevar.anthophylium,P. lilacinumandR. rubrareduced significantly (34–52%) the NLA ofB. sorokinianain both of the application sequences. The best antagonistic effect againstA. triticimaculanswas shown byAspergillus niger, Bacillussp.,Chaetomium globosum, F. moniliformevar.anthophyliumandNigrospora sphaerica, with a NLA reduction from 21% to 35% in the co-inoculation or in the sequential application. All microorganisms exceptN. sphaericaperformed better than the control againstD. tritici-repentis. The area under disease progress curve (AUDPC) of the pathogens appeared to progress similarly, but at lower values, in treated plants than in untreated controls. The two yeasts and the bacteria decreased AUDPC to 50–55% ofS. triticiandB. sorokinianacompared with the control in both application sequences, whereas the maximum efficacy againstA. triticimaculanswas reached byN. sphaericaandA. nigerfor the sequential application and byF. moniliformevar.anthophyliumfor the co-inoculation. If the parasitism occurs also in nature, application of antagonists for biological control might provide the opportunity to compete with the pathogens and regulate their colonization in wheat leaves.
- Materia
-
Ciencias Naturales y Exactas
biological control
wheat
foliar pathogens
phylloplane - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
- Institución
- Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
- OAI Identificador
- oai:digital.cic.gba.gob.ar:11746/5864
Ver los metadatos del registro completo
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CIC Digital (CICBA) |
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Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum)Perelló, AnalíaSimón, María RosaArambarri, A.M.Cordo, Cristina AliciaCiencias Naturales y Exactasbiological controlwheatfoliar pathogensphylloplaneTen microorganisms of the epiphytic microflora of wheat leaves in Buenos Aires Province, Argentina, were evaluated under greenhouse conditions as potential biocontrol agents of the pathogens<em>Alternaria triticimaculans, Bipolaris sorokiniana, Drechslera tritici-repentis</em>and<em>Septoria tritici</em>in two application sequences (prior to or together with the pathogens). The antagonists significantly reduced the expression of the diseases on wheat plants compared with control plants not inoculated with the antagonists. Maximum percentage of reduction of the necrotic lesion area (NLA) (40–55%) of<em>S. tritici</em>resulted when<em>Cryptococcus</em>sp.,<em>Rhodotorula rubra</em>and<em>Penicillium lilacinwn</em>were sprayed on leaves prior to inoculations with the pathogen.<em>Bacillus</em>sp.,<em>Cryptococcus</em>sp.,<em>Fusarium moniliforme</em>var.<em>anthophylium</em>,<em>P. lilacinum</em>and<em>R. rubra</em>reduced significantly (34–52%) the NLA of<em>B. sorokiniana</em>in both of the application sequences. The best antagonistic effect against<em>A. triticimaculans</em>was shown by<em>Aspergillus niger, Bacillus</em>sp.,<em>Chaetomium globosum, F. moniliforme</em>var.<em>anthophylium</em>and<em>Nigrospora sphaerica</em>, with a NLA reduction from 21% to 35% in the co-inoculation or in the sequential application. All microorganisms except<em>N. sphaerica</em>performed better than the control against<em>D. tritici-repentis</em>. The area under disease progress curve (AUDPC) of the pathogens appeared to progress similarly, but at lower values, in treated plants than in untreated controls. The two yeasts and the bacteria decreased AUDPC to 50–55% of<em>S. tritici</em>and<em>B. sorokiniana</em>compared with the control in both application sequences, whereas the maximum efficacy against<em>A. triticimaculans</em>was reached by<em>N. sphaerica</em>and<em>A. niger</em>for the sequential application and by<em>F. moniliforme</em>var.<em>anthophylium</em>for the co-inoculation. If the parasitism occurs also in nature, application of antagonists for biological control might provide the opportunity to compete with the pathogens and regulate their colonization in wheat leaves.2001info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/5864enginfo: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:CICBA2025-09-29T13:39:47Zoai:digital.cic.gba.gob.ar:11746/5864Institucionalhttp://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 13:39:48.044CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse |
dc.title.none.fl_str_mv |
Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum) |
title |
Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum) |
spellingShingle |
Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum) Perelló, Analía Ciencias Naturales y Exactas biological control wheat foliar pathogens phylloplane |
title_short |
Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum) |
title_full |
Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum) |
title_fullStr |
Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum) |
title_full_unstemmed |
Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum) |
title_sort |
Greenhouse Screening of the Saprophytic Resident Microflora for Control of Leaf Spots of Wheat (Triticum aestivum) |
dc.creator.none.fl_str_mv |
Perelló, Analía Simón, María Rosa Arambarri, A.M. Cordo, Cristina Alicia |
author |
Perelló, Analía |
author_facet |
Perelló, Analía Simón, María Rosa Arambarri, A.M. Cordo, Cristina Alicia |
author_role |
author |
author2 |
Simón, María Rosa Arambarri, A.M. Cordo, Cristina Alicia |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Ciencias Naturales y Exactas biological control wheat foliar pathogens phylloplane |
topic |
Ciencias Naturales y Exactas biological control wheat foliar pathogens phylloplane |
dc.description.none.fl_txt_mv |
Ten microorganisms of the epiphytic microflora of wheat leaves in Buenos Aires Province, Argentina, were evaluated under greenhouse conditions as potential biocontrol agents of the pathogens<em>Alternaria triticimaculans, Bipolaris sorokiniana, Drechslera tritici-repentis</em>and<em>Septoria tritici</em>in two application sequences (prior to or together with the pathogens). The antagonists significantly reduced the expression of the diseases on wheat plants compared with control plants not inoculated with the antagonists. Maximum percentage of reduction of the necrotic lesion area (NLA) (40–55%) of<em>S. tritici</em>resulted when<em>Cryptococcus</em>sp.,<em>Rhodotorula rubra</em>and<em>Penicillium lilacinwn</em>were sprayed on leaves prior to inoculations with the pathogen.<em>Bacillus</em>sp.,<em>Cryptococcus</em>sp.,<em>Fusarium moniliforme</em>var.<em>anthophylium</em>,<em>P. lilacinum</em>and<em>R. rubra</em>reduced significantly (34–52%) the NLA of<em>B. sorokiniana</em>in both of the application sequences. The best antagonistic effect against<em>A. triticimaculans</em>was shown by<em>Aspergillus niger, Bacillus</em>sp.,<em>Chaetomium globosum, F. moniliforme</em>var.<em>anthophylium</em>and<em>Nigrospora sphaerica</em>, with a NLA reduction from 21% to 35% in the co-inoculation or in the sequential application. All microorganisms except<em>N. sphaerica</em>performed better than the control against<em>D. tritici-repentis</em>. The area under disease progress curve (AUDPC) of the pathogens appeared to progress similarly, but at lower values, in treated plants than in untreated controls. The two yeasts and the bacteria decreased AUDPC to 50–55% of<em>S. tritici</em>and<em>B. sorokiniana</em>compared with the control in both application sequences, whereas the maximum efficacy against<em>A. triticimaculans</em>was reached by<em>N. sphaerica</em>and<em>A. niger</em>for the sequential application and by<em>F. moniliforme</em>var.<em>anthophylium</em>for the co-inoculation. If the parasitism occurs also in nature, application of antagonists for biological control might provide the opportunity to compete with the pathogens and regulate their colonization in wheat leaves. |
description |
Ten microorganisms of the epiphytic microflora of wheat leaves in Buenos Aires Province, Argentina, were evaluated under greenhouse conditions as potential biocontrol agents of the pathogens<em>Alternaria triticimaculans, Bipolaris sorokiniana, Drechslera tritici-repentis</em>and<em>Septoria tritici</em>in two application sequences (prior to or together with the pathogens). The antagonists significantly reduced the expression of the diseases on wheat plants compared with control plants not inoculated with the antagonists. Maximum percentage of reduction of the necrotic lesion area (NLA) (40–55%) of<em>S. tritici</em>resulted when<em>Cryptococcus</em>sp.,<em>Rhodotorula rubra</em>and<em>Penicillium lilacinwn</em>were sprayed on leaves prior to inoculations with the pathogen.<em>Bacillus</em>sp.,<em>Cryptococcus</em>sp.,<em>Fusarium moniliforme</em>var.<em>anthophylium</em>,<em>P. lilacinum</em>and<em>R. rubra</em>reduced significantly (34–52%) the NLA of<em>B. sorokiniana</em>in both of the application sequences. The best antagonistic effect against<em>A. triticimaculans</em>was shown by<em>Aspergillus niger, Bacillus</em>sp.,<em>Chaetomium globosum, F. moniliforme</em>var.<em>anthophylium</em>and<em>Nigrospora sphaerica</em>, with a NLA reduction from 21% to 35% in the co-inoculation or in the sequential application. All microorganisms except<em>N. sphaerica</em>performed better than the control against<em>D. tritici-repentis</em>. The area under disease progress curve (AUDPC) of the pathogens appeared to progress similarly, but at lower values, in treated plants than in untreated controls. The two yeasts and the bacteria decreased AUDPC to 50–55% of<em>S. tritici</em>and<em>B. sorokiniana</em>compared with the control in both application sequences, whereas the maximum efficacy against<em>A. triticimaculans</em>was reached by<em>N. sphaerica</em>and<em>A. niger</em>for the sequential application and by<em>F. moniliforme</em>var.<em>anthophylium</em>for the co-inoculation. If the parasitism occurs also in nature, application of antagonists for biological control might provide the opportunity to compete with the pathogens and regulate their colonization in wheat leaves. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
submittedVersion |
dc.identifier.none.fl_str_mv |
https://digital.cic.gba.gob.ar/handle/11746/5864 |
url |
https://digital.cic.gba.gob.ar/handle/11746/5864 |
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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1844618576826204160 |
score |
13.070432 |