Isolation and selection of Hemileia vastatrix antagonists

Detalhes bibliográficos
Autor(a) principal: Haddad, Fernando
Data de Publicação: 2014
Outros Autores: Saraiva, Rodrigo M., Mizubuti, Eduardo S. G., Romeiro, Reginaldo S., Maffia, Luiz A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://dx.doi.org/10.1007/s10658-014-0430-9
http://www.locus.ufv.br/handle/123456789/22424
Resumo: Organic coffee growing is rapidly increasing in Brazil, and many diseases, especially coffee leaf rust (Hemileia vastatrix), are threatening its production. This study is a first step towards a biocontrol program for coffee rust on organically grown plants. In three organic coffee farms in the state of Minas Gerais, 393 microbial strains including 154 bacterial and 239 fungal strains were isolated from leaves, leaf debris, and soil samples, and in 6 month-old coffee plants, 17 of these isolates reduced both the infection frequency (IF) and the number of H. vastatrix urediniospores produced per leaf (UPL) by more than 70 %. The isolates were identified as eight bacteria isolates, seven Bacillus spp. and one Pseudomonas sp., and nine fungal isolates, four Fusarium spp., two Penicillium spp., one Aspergillus sp., one Acremonium sp. and one Cladosporium sp. Each fungal and bacterial isolate was applied 0, 4, 8, 12 or 16 days before and 0, 4, 8, 12 or 16 days after H. vastatrix inoculation, and the efficiency in reducing both IF and UPL was evaluated. The efficiency was higher and lasted longer when the bacterial isolates were applied before H. vastatrix inoculation. Six Bacillus (B10, B25, B143, B157, B171, B175), two Fusarium (F205, F281), and one Pseudomonas (B286) isolates are potentially efficient as biocontrol agents of H. vastatrix and will be tested using field experiments.
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spelling Isolation and selection of Hemileia vastatrix antagonistsCoffea arabicaCoffeeRustDisease managementBiological controlOrganic coffee growing is rapidly increasing in Brazil, and many diseases, especially coffee leaf rust (Hemileia vastatrix), are threatening its production. This study is a first step towards a biocontrol program for coffee rust on organically grown plants. In three organic coffee farms in the state of Minas Gerais, 393 microbial strains including 154 bacterial and 239 fungal strains were isolated from leaves, leaf debris, and soil samples, and in 6 month-old coffee plants, 17 of these isolates reduced both the infection frequency (IF) and the number of H. vastatrix urediniospores produced per leaf (UPL) by more than 70 %. The isolates were identified as eight bacteria isolates, seven Bacillus spp. and one Pseudomonas sp., and nine fungal isolates, four Fusarium spp., two Penicillium spp., one Aspergillus sp., one Acremonium sp. and one Cladosporium sp. Each fungal and bacterial isolate was applied 0, 4, 8, 12 or 16 days before and 0, 4, 8, 12 or 16 days after H. vastatrix inoculation, and the efficiency in reducing both IF and UPL was evaluated. The efficiency was higher and lasted longer when the bacterial isolates were applied before H. vastatrix inoculation. Six Bacillus (B10, B25, B143, B157, B171, B175), two Fusarium (F205, F281), and one Pseudomonas (B286) isolates are potentially efficient as biocontrol agents of H. vastatrix and will be tested using field experiments.European Journal of Plant Pathology2018-10-30T20:47:25Z2018-10-30T20:47:25Z2014-04-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlepdfapplication/pdf15738469http://dx.doi.org/10.1007/s10658-014-0430-9http://www.locus.ufv.br/handle/123456789/22424engv. 139, n. 4, p. 763– 772, ago. 2014Koninklijke Nederlandse Planteziektenkundige Vereniging 2014info:eu-repo/semantics/openAccessHaddad, FernandoSaraiva, Rodrigo M.Mizubuti, Eduardo S. G.Romeiro, Reginaldo S.Maffia, Luiz A.reponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFV2024-07-12T08:20:57Zoai:locus.ufv.br:123456789/22424Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452024-07-12T08:20:57LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv Isolation and selection of Hemileia vastatrix antagonists
title Isolation and selection of Hemileia vastatrix antagonists
spellingShingle Isolation and selection of Hemileia vastatrix antagonists
Haddad, Fernando
Coffea arabica
Coffee
Rust
Disease management
Biological control
title_short Isolation and selection of Hemileia vastatrix antagonists
title_full Isolation and selection of Hemileia vastatrix antagonists
title_fullStr Isolation and selection of Hemileia vastatrix antagonists
title_full_unstemmed Isolation and selection of Hemileia vastatrix antagonists
title_sort Isolation and selection of Hemileia vastatrix antagonists
author Haddad, Fernando
author_facet Haddad, Fernando
Saraiva, Rodrigo M.
Mizubuti, Eduardo S. G.
Romeiro, Reginaldo S.
Maffia, Luiz A.
author_role author
author2 Saraiva, Rodrigo M.
Mizubuti, Eduardo S. G.
Romeiro, Reginaldo S.
Maffia, Luiz A.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Haddad, Fernando
Saraiva, Rodrigo M.
Mizubuti, Eduardo S. G.
Romeiro, Reginaldo S.
Maffia, Luiz A.
dc.subject.por.fl_str_mv Coffea arabica
Coffee
Rust
Disease management
Biological control
topic Coffea arabica
Coffee
Rust
Disease management
Biological control
description Organic coffee growing is rapidly increasing in Brazil, and many diseases, especially coffee leaf rust (Hemileia vastatrix), are threatening its production. This study is a first step towards a biocontrol program for coffee rust on organically grown plants. In three organic coffee farms in the state of Minas Gerais, 393 microbial strains including 154 bacterial and 239 fungal strains were isolated from leaves, leaf debris, and soil samples, and in 6 month-old coffee plants, 17 of these isolates reduced both the infection frequency (IF) and the number of H. vastatrix urediniospores produced per leaf (UPL) by more than 70 %. The isolates were identified as eight bacteria isolates, seven Bacillus spp. and one Pseudomonas sp., and nine fungal isolates, four Fusarium spp., two Penicillium spp., one Aspergillus sp., one Acremonium sp. and one Cladosporium sp. Each fungal and bacterial isolate was applied 0, 4, 8, 12 or 16 days before and 0, 4, 8, 12 or 16 days after H. vastatrix inoculation, and the efficiency in reducing both IF and UPL was evaluated. The efficiency was higher and lasted longer when the bacterial isolates were applied before H. vastatrix inoculation. Six Bacillus (B10, B25, B143, B157, B171, B175), two Fusarium (F205, F281), and one Pseudomonas (B286) isolates are potentially efficient as biocontrol agents of H. vastatrix and will be tested using field experiments.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-21
2018-10-30T20:47:25Z
2018-10-30T20:47:25Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv 15738469
http://dx.doi.org/10.1007/s10658-014-0430-9
http://www.locus.ufv.br/handle/123456789/22424
identifier_str_mv 15738469
url http://dx.doi.org/10.1007/s10658-014-0430-9
http://www.locus.ufv.br/handle/123456789/22424
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv v. 139, n. 4, p. 763– 772, ago. 2014
dc.rights.driver.fl_str_mv Koninklijke Nederlandse Planteziektenkundige Vereniging 2014
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Koninklijke Nederlandse Planteziektenkundige Vereniging 2014
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv European Journal of Plant Pathology
publisher.none.fl_str_mv European Journal of Plant Pathology
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str LOCUS Repositório Institucional da UFV
collection LOCUS Repositório Institucional da UFV
repository.name.fl_str_mv LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv fabiojreis@ufv.br
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