Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/48079 |
Resumo: | 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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Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditionsTransmissão potencial de Colletotrichum lindemuthianum (raça 65) em associação com sementes de feijão sob condições controladasAnthracnose - TransmissionBeans - Diseases and pestsInoculum potentialAntracnose - TransmissãoFeijão - Doenças e pragasPotencial de inóculoAnthracnose, 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.A antracnose do feijoeiro, causada por Colletotrichum lindemuthianum, é uma das principais doenças que ocorre no feijoeiro e as perdas podem chegar a 100%. A transmissão deste patógeno de sementes para plântulas/plantas pode variar de acordo com as condições ambientais e nível de inóculo, dentre outros fatores. O objetivo deste trabalho foi quantificar a taxa de transmissão de C. lindemuthianum, raça 65, a partir de sementes de feijão infectadas. A inoculação das sementes foi realizada pela técnica de condicionamento hídrico com o intuito de se obter sementes com diferentes potenciais de inóculo, em função do tempo de exposição das sementes com o fungo em cultura pura, sendo os potenciais denominados: P0, P36, P72, P108 e P144. Sementes não inoculadas e inoculadas foram semeadas individualmente e mantidas em câmaras de crescimento vegetal sob duas temperaturas de crescimento, 20 e 26 °C pelo período de 28 dias. Observou-se que, tanto em plantas assintomáticas, quanto nas sintomáticas, houve transmissão do patógeno. A maior taxa de transmissão total (92%) ocorreu nas plantas originadas a partir de sementes expostas por 144 horas ao fungo e a 20 °C.Associação Brasileira de Tecnologia de Sementes - ABRATES2021-09-08T19:17:31Z2021-09-08T19:17:31Z2020-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGADAGA, S. J. C.; SIQUEIRA, C. da S.; MACHADO, J. da C. Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions. Journal of Seed Science, Londrina, v. 42, e202042025, 2020. DOI: http://dx.doi.org/10.1590/2317-1545v42231421.http://repositorio.ufla.br/jspui/handle/1/48079Journal of Seed Sciencereponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessGadaga, Stélio Jorge CastroSiqueira, Carolina da SilvaMachado, José da Cruzeng2023-05-26T19:53:16Zoai:localhost:1/48079Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T19:53:16Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions Transmissão potencial de Colletotrichum lindemuthianum (raça 65) em associação com sementes de feijão sob condições controladas |
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 Anthracnose - Transmission Beans - Diseases and pests Inoculum potential Antracnose - Transmissão Feijão - Doenças e pragas Potencial de inóculo |
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 |
Anthracnose - Transmission Beans - Diseases and pests Inoculum potential Antracnose - Transmissão Feijão - Doenças e pragas Potencial de inóculo |
topic |
Anthracnose - Transmission Beans - Diseases and pests Inoculum potential Antracnose - Transmissão Feijão - Doenças e pragas Potencial de inóculo |
description |
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 |
2020-08 2021-09-08T19:17:31Z 2021-09-08T19:17:31Z |
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 |
GADAGA, S. J. C.; SIQUEIRA, C. da S.; MACHADO, J. da C. Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions. Journal of Seed Science, Londrina, v. 42, e202042025, 2020. DOI: http://dx.doi.org/10.1590/2317-1545v42231421. http://repositorio.ufla.br/jspui/handle/1/48079 |
identifier_str_mv |
GADAGA, S. J. C.; SIQUEIRA, C. da S.; MACHADO, J. da C. Transmission potential of Colletotrichum lindemuthianum (race 65) in association with bean seeds under controlled conditions. Journal of Seed Science, Londrina, v. 42, e202042025, 2020. DOI: http://dx.doi.org/10.1590/2317-1545v42231421. |
url |
http://repositorio.ufla.br/jspui/handle/1/48079 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Tecnologia de Sementes - ABRATES |
publisher.none.fl_str_mv |
Associação Brasileira de Tecnologia de Sementes - ABRATES |
dc.source.none.fl_str_mv |
Journal of Seed Science reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1807835152757293056 |