Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions

Detalhes bibliográficos
Autor(a) principal: Gadaga,Stélio Jorge Castro
Data de Publicação: 2020
Outros Autores: Siqueira,Carolina da Silva, Machado,José da Cruz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of Seed Science
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372020000100122
Resumo: Abstract: Anthracnose, caused by Colletotrichum lindemuthianum, is one of the main diseases affecting common bean in Brazil, and field losses can reach 100%. Transmission of this pathogen from seeds to seedlings/plants may vary according to environmental conditions and initial inoculum levels, among other factors. The aim of this study was to quantify the transmission rate of C. lindemuthianum, race 65, from infected bean seeds to seedlings/plants under controlled conditions. Seed inoculation was performed by the water conditioning technique in order to obtain seeds with different inoculum potentials as a result of the exposure time of the seeds to the fungus in pure culture, with the potentials denominated P0, P36, P72, P108, and P144. Inoculated and non-inoculated seeds were individually sown and kept in growth chambers under two temperatures, 20 and 26 °C, for a period of 28 days. There was transmission of the pathogen in both asymptomatic and symptomatic plants. The highest total transmission rate (92%) occurred in plants originating from seeds exposed for 144 hours to the fungus at 20 °C.
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spelling Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditionstransmissioncommon bean anthracnoseinoculum potentialAbstract: Anthracnose, caused by Colletotrichum lindemuthianum, is one of the main diseases affecting common bean in Brazil, and field losses can reach 100%. Transmission of this pathogen from seeds to seedlings/plants may vary according to environmental conditions and initial inoculum levels, among other factors. The aim of this study was to quantify the transmission rate of C. lindemuthianum, race 65, from infected bean seeds to seedlings/plants under controlled conditions. Seed inoculation was performed by the water conditioning technique in order to obtain seeds with different inoculum potentials as a result of the exposure time of the seeds to the fungus in pure culture, with the potentials denominated P0, P36, P72, P108, and P144. Inoculated and non-inoculated seeds were individually sown and kept in growth chambers under two temperatures, 20 and 26 °C, for a period of 28 days. There was transmission of the pathogen in both asymptomatic and symptomatic plants. The highest total transmission rate (92%) occurred in plants originating from seeds exposed for 144 hours to the fungus at 20 °C.ABRATES - Associação Brasileira de Tecnologia de Sementes2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372020000100122Journal of Seed Science v.42 2020reponame:Journal of Seed Scienceinstname:Associação Brasileira de Tecnologia de Sementes (ABRATES)instacron:ABRATES10.1590/2317-1545v42231421info:eu-repo/semantics/openAccessGadaga,Stélio Jorge CastroSiqueira,Carolina da SilvaMachado,José da Cruzeng2020-08-11T00:00:00Zoai:scielo:S2317-15372020000100122Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=2317-1537&lng=en&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||abrates@abrates.org.br2317-15452317-1537opendoar:2020-08-11T00:00Journal of Seed Science - Associação Brasileira de Tecnologia de Sementes (ABRATES)false
dc.title.none.fl_str_mv Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions
title Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions
spellingShingle Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions
Gadaga,Stélio Jorge Castro
transmission
common bean anthracnose
inoculum potential
title_short Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions
title_full Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions
title_fullStr Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions
title_full_unstemmed Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions
title_sort Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions
author Gadaga,Stélio Jorge Castro
author_facet Gadaga,Stélio Jorge Castro
Siqueira,Carolina da Silva
Machado,José da Cruz
author_role author
author2 Siqueira,Carolina da Silva
Machado,José da Cruz
author2_role author
author
dc.contributor.author.fl_str_mv Gadaga,Stélio Jorge Castro
Siqueira,Carolina da Silva
Machado,José da Cruz
dc.subject.por.fl_str_mv transmission
common bean anthracnose
inoculum potential
topic transmission
common bean anthracnose
inoculum potential
description Abstract: Anthracnose, caused by Colletotrichum lindemuthianum, is one of the main diseases affecting common bean in Brazil, and field losses can reach 100%. Transmission of this pathogen from seeds to seedlings/plants may vary according to environmental conditions and initial inoculum levels, among other factors. The aim of this study was to quantify the transmission rate of C. lindemuthianum, race 65, from infected bean seeds to seedlings/plants under controlled conditions. Seed inoculation was performed by the water conditioning technique in order to obtain seeds with different inoculum potentials as a result of the exposure time of the seeds to the fungus in pure culture, with the potentials denominated P0, P36, P72, P108, and P144. Inoculated and non-inoculated seeds were individually sown and kept in growth chambers under two temperatures, 20 and 26 °C, for a period of 28 days. There was transmission of the pathogen in both asymptomatic and symptomatic plants. The highest total transmission rate (92%) occurred in plants originating from seeds exposed for 144 hours to the fungus at 20 °C.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2317-15372020000100122
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/2317-1545v42231421
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABRATES - Associação Brasileira de Tecnologia de Sementes
publisher.none.fl_str_mv ABRATES - Associação Brasileira de Tecnologia de Sementes
dc.source.none.fl_str_mv Journal of Seed Science v.42 2020
reponame:Journal of Seed Science
instname:Associação Brasileira de Tecnologia de Sementes (ABRATES)
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