Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteria

Detalhes bibliográficos
Autor(a) principal: Toledo, Carla Neves
Data de Publicação: 2022
Outros Autores: Rocha, Elisa, Araújo, Bruna Aparecida, Silva, Nhayandra Christina Dias, Rezende, Adauton Vilela, Florentino, Ligiane Aparecida
Tipo de documento: Artigo
Idioma: por
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/26287
Resumo: The objective of this study was to verify the influence of allelopathic compounds released by Brachiaria brizantha cv. Marandu on the tolerance of plant growth-promoting bacteria (PGPB). Extracts of shoots and roots of B. brizantha were obtained at concentrations of 12.5; 25.0; 50.0 and 75.0% and evaluated the effect on the growth of 10 PGPB strains using agar drilling and serial dilution methodologies. The experiment was installed in a completely randomized design (CRD) in a factorial scheme, 10 x 5 x 2 with 4 replications, 10 bacterial strains, 5 constituting the four different concentrations and a control treatment (without extract) and 2 extracts of allelopathic compounds, shoot and root, of B. brizantha. Inhibition was verified by the root extract at a concentration of 75% for the UNIFENAS 100-01 strains; 100-13; 100-39; 100-02 and 100-94 by the agar perforation method. The other strains grew normally in the culture medium at all concentrations. According to the data obtained, it was possible to observe that allelopathic extracts of B. brizantha may interfere with the growth of PGPB strains, which may compromise their efficiency when used as inoculants.
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spelling Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteriaAlelopatía de Brachiaria brizantha cv. Marandu en bacterias promotoras del crecimiento vegetalAlelopatia de Brachiaria brizantha cv. Marandu em bactérias promotoras do crescimento vegetal The objective of this study was to verify the influence of allelopathic compounds released by Brachiaria brizantha cv. Marandu on the tolerance of plant growth-promoting bacteria (PGPB). Extracts of shoots and roots of B. brizantha were obtained at concentrations of 12.5; 25.0; 50.0 and 75.0% and evaluated the effect on the growth of 10 PGPB strains using agar drilling and serial dilution methodologies. The experiment was installed in a completely randomized design (CRD) in a factorial scheme, 10 x 5 x 2 with 4 replications, 10 bacterial strains, 5 constituting the four different concentrations and a control treatment (without extract) and 2 extracts of allelopathic compounds, shoot and root, of B. brizantha. Inhibition was verified by the root extract at a concentration of 75% for the UNIFENAS 100-01 strains; 100-13; 100-39; 100-02 and 100-94 by the agar perforation method. The other strains grew normally in the culture medium at all concentrations. According to the data obtained, it was possible to observe that allelopathic extracts of B. brizantha may interfere with the growth of PGPB strains, which may compromise their efficiency when used as inoculants.El objetivo de este estudio fue verificar la influencia de los compuestos alelopáticos liberados por Brachiaria brizantha cv. Marandu sobre la tolerancia de las bacterias promotoras del crecimiento vegetal (BPCV). Se obtuvieron extractos de brotes y raíces de B. brizantha a concentraciones de 12,5; 25,0; 50,0 y 75,0% y evaluó el efecto sobre el crecimiento de 10 cepas de BPCV utilizando metodologías de perforación en agar y dilución en serie. El experimento se instaló en un diseño completamente aleatorizado (DCA) en esquema factorial, 10 x 5 x 2 con 4 repeticiones, 10 cepas bacterianas, 5 constituyendo las cuatro diferentes concentraciones y un tratamiento control (sin extracto) y 2 extractos de compuestos alelopáticos, brote y raíz, de B. brizantha. La inhibición fue verificada por el extracto de raíz a una concentración de 75% para las cepas UNIFENAS 100-01; 100-13; 100-39; 100-02 y 100-94 por el método de perforación de agar. Las otras cepas crecieron normalmente en el medio de cultivo en todas las concentraciones. De acuerdo con los datos obtenidos, fue posible observar que los extractos alelopáticos de B. brizantha pueden interferir en el crecimiento de las cepas de BPCV, lo que puede comprometer su eficiencia cuando se utilizan como inoculantes.Objetivou-se com este estudo verificar a influência de compostos alelopáticos liberados por Brachiaria brizantha cv. Marandu na tolerância de bactérias promotoras do crescimento vegetal (BPCV). Foram obtidos extratos da parte aérea e raiz de B. brizantha nas concentrações de 12,5; 25,0; 50,0 e 75,0% e avaliado o efeito no crescimento de 10 estirpes de BPCV utilizando as metodologias de perfuração em ágar e diluição seriada. O experimento foi instalado em delineamento inteiramente casualizado (DIC) em esquema fatorial, 10 x 5 x 2 com 4 repetições, sendo 10 estirpes bacterianas, 5 constituindo as quatro diferentes concentrações e um tratamento controle (sem extrato) e 2 extratos de compostos alelopáticos, parte aérea e radicular, de B. brizantha. Foi verificado inibição pelo extrato radicular na concentração de 75% para as estirpes UNIFENAS 100-01; 100-13; 100-39; 100-02 e 100-94 pelo método da perfuração do ágar. As demais estirpes cresceram normalmente no meio de cultura em todas as concentrações. De acordo com os dados obtidos foi possível observar que os extratos alelopático de B. brizantha podem interferir no crescimento de estirpes de BPCV, podendo comprometer a eficiência destas quando utilizadas como inoculantes.Research, Society and Development2022-02-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/2628710.33448/rsd-v11i3.26287Research, Society and Development; Vol. 11 No. 3; e3311326287Research, Society and Development; Vol. 11 Núm. 3; e3311326287Research, Society and Development; v. 11 n. 3; e33113262872525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/26287/22961Copyright (c) 2022 Carla Neves Toledo; Elisa Rocha; Bruna Aparecida Araújo; Nhayandra Christina Dias Silva; Adauton Vilela Rezende; Ligiane Aparecida Florentinohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessToledo, Carla NevesRocha, ElisaAraújo, Bruna AparecidaSilva, Nhayandra Christina DiasRezende, Adauton VilelaFlorentino, Ligiane Aparecida 2022-03-09T13:44:38Zoai:ojs.pkp.sfu.ca:article/26287Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:44:22.016378Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteria
Alelopatía de Brachiaria brizantha cv. Marandu en bacterias promotoras del crecimiento vegetal
Alelopatia de Brachiaria brizantha cv. Marandu em bactérias promotoras do crescimento vegetal
title Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteria
spellingShingle Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteria
Toledo, Carla Neves
title_short Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteria
title_full Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteria
title_fullStr Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteria
title_full_unstemmed Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteria
title_sort Allelopathy of Brachiaria brizantha cv. Marandu in plant growth-promoting bacteria
author Toledo, Carla Neves
author_facet Toledo, Carla Neves
Rocha, Elisa
Araújo, Bruna Aparecida
Silva, Nhayandra Christina Dias
Rezende, Adauton Vilela
Florentino, Ligiane Aparecida
author_role author
author2 Rocha, Elisa
Araújo, Bruna Aparecida
Silva, Nhayandra Christina Dias
Rezende, Adauton Vilela
Florentino, Ligiane Aparecida
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Toledo, Carla Neves
Rocha, Elisa
Araújo, Bruna Aparecida
Silva, Nhayandra Christina Dias
Rezende, Adauton Vilela
Florentino, Ligiane Aparecida
description The objective of this study was to verify the influence of allelopathic compounds released by Brachiaria brizantha cv. Marandu on the tolerance of plant growth-promoting bacteria (PGPB). Extracts of shoots and roots of B. brizantha were obtained at concentrations of 12.5; 25.0; 50.0 and 75.0% and evaluated the effect on the growth of 10 PGPB strains using agar drilling and serial dilution methodologies. The experiment was installed in a completely randomized design (CRD) in a factorial scheme, 10 x 5 x 2 with 4 replications, 10 bacterial strains, 5 constituting the four different concentrations and a control treatment (without extract) and 2 extracts of allelopathic compounds, shoot and root, of B. brizantha. Inhibition was verified by the root extract at a concentration of 75% for the UNIFENAS 100-01 strains; 100-13; 100-39; 100-02 and 100-94 by the agar perforation method. The other strains grew normally in the culture medium at all concentrations. According to the data obtained, it was possible to observe that allelopathic extracts of B. brizantha may interfere with the growth of PGPB strains, which may compromise their efficiency when used as inoculants.
publishDate 2022
dc.date.none.fl_str_mv 2022-02-10
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://rsdjournal.org/index.php/rsd/article/view/26287
10.33448/rsd-v11i3.26287
url https://rsdjournal.org/index.php/rsd/article/view/26287
identifier_str_mv 10.33448/rsd-v11i3.26287
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/26287/22961
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 11 No. 3; e3311326287
Research, Society and Development; Vol. 11 Núm. 3; e3311326287
Research, Society and Development; v. 11 n. 3; e3311326287
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
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instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
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reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
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