PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEA

Detalhes bibliográficos
Autor(a) principal: Sales Júnior, Rui
Data de Publicação: 2020
Outros Autores: Silva Neto, Alfredo Nogueira da, Negreiros, Andreia Mitsa Paiva, Gomes, Thomas Rauan Rodrigues, Ambrósio, Marcia Michelle de Queiroz, Armengol, Josep
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Caatinga
Texto Completo: https://periodicos.ufersa.edu.br/caatinga/article/view/8989
Resumo: Charcoal rot caused by Macrophomina phaseolina is a major cowpea disease causing substantial losses to growers. In the semi-arid region of Brazil, cowpea is one of the most widely used alternatives for crop rotation during the off-season of melon. This favors Macrophomina multiplication because both crops are hosts of this pathogen. The objective of this study was to verify the pathogenicity of Macrophomina phaseolina and M. pseudophaseolina on cowpea. The Macrophomina spp. isolates used were obtained from the roots of Trianthema portulacastrum and Boerhavia diffusa, weed species prevalent in melon production areas in North-east Brazilian. The experiment was carried out in a greenhouse. Cowpea plants cv. ‘Paulistinha’ were inoculated with 30 M. phaseolina isolates, 30 M. pseudophaseolina isolates and a reference isolate of M. phaseolina obtained from cowpea roots. All Macrophomina isolates were able to cause disease on cowpea and there were no statistical differences between both Macrophomina species regarding disease incidence and severity. Moreover, 65.2 and 100.0% of the M. phaseolina isolates, and 56.2 and 92.8% of the M. pseudophaseolina isolates, obtained from T. portulacastrum and B. diffusa, respectively, were as severe to cowpea as the M. phaseolina reference isolate from cowpea. These results emphasize the need to establish management practices aiming to control T. portucalastrum and B. diffusa from cowpea production areas, as they can act as potential sources of inoculum and survival for Macrophomina spp.  
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spelling PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEAPATOGENICIDADE DE ESPÉCIES DE Macrophomina COLETADAS DE PLANTAS DANINHAS EM FEIJÃO-CAUPIBoerhavia diffusa. Inoculação. Patógeno habitante do solo. Trianthema portulacastrum. Vigna unguiculata.Boerhavia diffusa. Inoculation. Soil-borne pathogen. Trianthema portulacastrum. Vigna unguiculata.Charcoal rot caused by Macrophomina phaseolina is a major cowpea disease causing substantial losses to growers. In the semi-arid region of Brazil, cowpea is one of the most widely used alternatives for crop rotation during the off-season of melon. This favors Macrophomina multiplication because both crops are hosts of this pathogen. The objective of this study was to verify the pathogenicity of Macrophomina phaseolina and M. pseudophaseolina on cowpea. The Macrophomina spp. isolates used were obtained from the roots of Trianthema portulacastrum and Boerhavia diffusa, weed species prevalent in melon production areas in North-east Brazilian. The experiment was carried out in a greenhouse. Cowpea plants cv. ‘Paulistinha’ were inoculated with 30 M. phaseolina isolates, 30 M. pseudophaseolina isolates and a reference isolate of M. phaseolina obtained from cowpea roots. All Macrophomina isolates were able to cause disease on cowpea and there were no statistical differences between both Macrophomina species regarding disease incidence and severity. Moreover, 65.2 and 100.0% of the M. phaseolina isolates, and 56.2 and 92.8% of the M. pseudophaseolina isolates, obtained from T. portulacastrum and B. diffusa, respectively, were as severe to cowpea as the M. phaseolina reference isolate from cowpea. These results emphasize the need to establish management practices aiming to control T. portucalastrum and B. diffusa from cowpea production areas, as they can act as potential sources of inoculum and survival for Macrophomina spp.  A podridão de carvão causada por Macrophomina phaseolina é uma das principais doenças do feijão-caupi, causando perdas substanciais para os produtores. Na região semiárida do Brasil, o feijão-caupi é uma das alternativas utilizadas para rotação de culturas durante a entressafra do melão. Isso favorece a multiplicação de Macrophomina, uma vez que ambas as culturas são hospedeiras desse patógeno. O objetivo deste estudo foi verificar a patogenicidade em caupi de Macrophomina phaseolina e M. pseudophaseolina em caupi. Isolados de Macrophomina spp. obtidos das raízes de Trianthema portulacastrum e Boerhavia diffusa, espécies de plantas daninhas prevalentes em áreas de produção de melão no Nordeste brasileiro foram utilizadas neste estudo. O experimento foi realizado em casa de vegetação. Plantas de feijão-caupi 'Paulistinha' foram inoculados com 30 isolados de M. phaseolina, 30 isolados de M. pseudophaseolina e um isolado de referência de M. phaseolina obtido de raízes de feijão-caupi. Todos os isolados de Macrophomina foram patogênicos ao feijão-caupi, não havendo diferenças estatísticas entre as duas espécies de Macrophomina em relação à incidência e severidade da doença. Além disso, 65,2 e 100,0% dos isolados de M. phaseolina, e 56,2 e 92,8% dos isolados de M. pseudophaseolina, obtidos de T. portulacastrum e B. diffusa, respectivamente, foram tão severos ao feijão-caupi quanto o isolado de referência. Esses resultados enfatizam a necessidade de estabelecer práticas de manejo visando o controle de T. portucalastrum e B. diffusa nas áreas de produção de feijão-caupi, pois podem atuar como fontes de inóculo e sobrevivência para Macrophomina spp.  Universidade Federal Rural do Semi-Árido2020-05-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/898910.1590/1983-21252020v33n212rcREVISTA CAATINGA; Vol. 33 No. 2 (2020); 395-401Revista Caatinga; v. 33 n. 2 (2020); 395-4011983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/8989/10208Copyright (c) 2020 Revista Caatingainfo:eu-repo/semantics/openAccessSales Júnior, RuiSilva Neto, Alfredo Nogueira daNegreiros, Andreia Mitsa PaivaGomes, Thomas Rauan RodriguesAmbrósio, Marcia Michelle de QueirozArmengol, Josep2023-07-21T17:26:58Zoai:ojs.periodicos.ufersa.edu.br:article/8989Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:44.289054Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true
dc.title.none.fl_str_mv PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEA
PATOGENICIDADE DE ESPÉCIES DE Macrophomina COLETADAS DE PLANTAS DANINHAS EM FEIJÃO-CAUPI
title PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEA
spellingShingle PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEA
Sales Júnior, Rui
Boerhavia diffusa. Inoculação. Patógeno habitante do solo. Trianthema portulacastrum. Vigna unguiculata.
Boerhavia diffusa. Inoculation. Soil-borne pathogen. Trianthema portulacastrum. Vigna unguiculata.
title_short PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEA
title_full PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEA
title_fullStr PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEA
title_full_unstemmed PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEA
title_sort PATHOGENICITY OF Macrophomina SPECIES COLLECTED FROM WEEDS IN COWPEA
author Sales Júnior, Rui
author_facet Sales Júnior, Rui
Silva Neto, Alfredo Nogueira da
Negreiros, Andreia Mitsa Paiva
Gomes, Thomas Rauan Rodrigues
Ambrósio, Marcia Michelle de Queiroz
Armengol, Josep
author_role author
author2 Silva Neto, Alfredo Nogueira da
Negreiros, Andreia Mitsa Paiva
Gomes, Thomas Rauan Rodrigues
Ambrósio, Marcia Michelle de Queiroz
Armengol, Josep
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Sales Júnior, Rui
Silva Neto, Alfredo Nogueira da
Negreiros, Andreia Mitsa Paiva
Gomes, Thomas Rauan Rodrigues
Ambrósio, Marcia Michelle de Queiroz
Armengol, Josep
dc.subject.por.fl_str_mv Boerhavia diffusa. Inoculação. Patógeno habitante do solo. Trianthema portulacastrum. Vigna unguiculata.
Boerhavia diffusa. Inoculation. Soil-borne pathogen. Trianthema portulacastrum. Vigna unguiculata.
topic Boerhavia diffusa. Inoculação. Patógeno habitante do solo. Trianthema portulacastrum. Vigna unguiculata.
Boerhavia diffusa. Inoculation. Soil-borne pathogen. Trianthema portulacastrum. Vigna unguiculata.
description Charcoal rot caused by Macrophomina phaseolina is a major cowpea disease causing substantial losses to growers. In the semi-arid region of Brazil, cowpea is one of the most widely used alternatives for crop rotation during the off-season of melon. This favors Macrophomina multiplication because both crops are hosts of this pathogen. The objective of this study was to verify the pathogenicity of Macrophomina phaseolina and M. pseudophaseolina on cowpea. The Macrophomina spp. isolates used were obtained from the roots of Trianthema portulacastrum and Boerhavia diffusa, weed species prevalent in melon production areas in North-east Brazilian. The experiment was carried out in a greenhouse. Cowpea plants cv. ‘Paulistinha’ were inoculated with 30 M. phaseolina isolates, 30 M. pseudophaseolina isolates and a reference isolate of M. phaseolina obtained from cowpea roots. All Macrophomina isolates were able to cause disease on cowpea and there were no statistical differences between both Macrophomina species regarding disease incidence and severity. Moreover, 65.2 and 100.0% of the M. phaseolina isolates, and 56.2 and 92.8% of the M. pseudophaseolina isolates, obtained from T. portulacastrum and B. diffusa, respectively, were as severe to cowpea as the M. phaseolina reference isolate from cowpea. These results emphasize the need to establish management practices aiming to control T. portucalastrum and B. diffusa from cowpea production areas, as they can act as potential sources of inoculum and survival for Macrophomina spp.  
publishDate 2020
dc.date.none.fl_str_mv 2020-05-22
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/8989
10.1590/1983-21252020v33n212rc
url https://periodicos.ufersa.edu.br/caatinga/article/view/8989
identifier_str_mv 10.1590/1983-21252020v33n212rc
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.ufersa.edu.br/caatinga/article/view/8989/10208
dc.rights.driver.fl_str_mv Copyright (c) 2020 Revista Caatinga
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Revista Caatinga
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
publisher.none.fl_str_mv Universidade Federal Rural do Semi-Árido
dc.source.none.fl_str_mv REVISTA CAATINGA; Vol. 33 No. 2 (2020); 395-401
Revista Caatinga; v. 33 n. 2 (2020); 395-401
1983-2125
0100-316X
reponame:Revista Caatinga
instname:Universidade Federal Rural do Semi-Árido (UFERSA)
instacron:UFERSA
instname_str Universidade Federal Rural do Semi-Árido (UFERSA)
instacron_str UFERSA
institution UFERSA
reponame_str Revista Caatinga
collection Revista Caatinga
repository.name.fl_str_mv Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)
repository.mail.fl_str_mv patricio@ufersa.edu.br|| caatinga@ufersa.edu.br
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