Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouse

Detalhes bibliográficos
Autor(a) principal: Malty, Juliano dos Santos
Data de Publicação: 2006
Outros Autores: Siqueira, José Oswaldo, Moreira, Fátima Maria de Souza
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/7135
Resumo: The effects of the Roundup herbicide on three strains of Bradyrhizobium elkanii (BR 29, INPA 80A and INPA 553A), one of B. japonicum (BR 86), and on three species of arbuscular mycorrhizal fungi (AMF) (Gigaspora margarita, Glomus etunicatum and Scutellospora heterogama), were evaluated in culture media containing increasing concentrations of the herbicide (0–454 µM); evaluations were also made on the effects on nodulation and mycorrhiza colonization of soybean grown in a soil treated with Roundup doses equivalent to 1.25 to 10 L ha-1 before sowing. The herbicide inhibited growth of Bradyrhizobium spp. and AMF in culture medium. These effects were directly related to increasing concentrations, and varied depending on the strain and species evaluated. However, in vitro inhibition occurred only when concentrations were greater than that recommended for use in the field. Strains BR 29, INPA 553A and INPA 80A showed to be more resistant to glyphosate, when compared to BR 86. Herbicide inhibition on germination and growth of AMF spore germ tubes decreased from G. etunicatum to S. heterogama and G. margarita. Soil application of Roundup before sowing up to a dose equivalent to 10 L ha-1 had no effect on nodulation and mycorrhiza colonization of soybean.
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spelling Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouseEfeitos do glifosato sobre microrganismos simbiotróficos de soja, em meio de cultura e casa de vegetaçãosymbiosis; mycorrhiza; Bradyrhizobium; nodulationsimbiose; fungos micorrízicos; Bradyrhizobium; nodulaçãoThe effects of the Roundup herbicide on three strains of Bradyrhizobium elkanii (BR 29, INPA 80A and INPA 553A), one of B. japonicum (BR 86), and on three species of arbuscular mycorrhizal fungi (AMF) (Gigaspora margarita, Glomus etunicatum and Scutellospora heterogama), were evaluated in culture media containing increasing concentrations of the herbicide (0–454 µM); evaluations were also made on the effects on nodulation and mycorrhiza colonization of soybean grown in a soil treated with Roundup doses equivalent to 1.25 to 10 L ha-1 before sowing. The herbicide inhibited growth of Bradyrhizobium spp. and AMF in culture medium. These effects were directly related to increasing concentrations, and varied depending on the strain and species evaluated. However, in vitro inhibition occurred only when concentrations were greater than that recommended for use in the field. Strains BR 29, INPA 553A and INPA 80A showed to be more resistant to glyphosate, when compared to BR 86. Herbicide inhibition on germination and growth of AMF spore germ tubes decreased from G. etunicatum to S. heterogama and G. margarita. Soil application of Roundup before sowing up to a dose equivalent to 10 L ha-1 had no effect on nodulation and mycorrhiza colonization of soybean.Os efeitos do herbicida Roundup, formulado à base de glifosato, foram avaliados sobre três estirpes de Bradyrhizobium elkanii (BR 29, INPA 80A e INPA 553A), e uma de B. japonicum (BR 86), e sobre três espécies de fungos micorrízicos arbusculares (FMA) (Gigaspora margarita, Glomus etunicatum e Scutellospora heterogama), em meios de cultivo com concentrações crescentes do herbicida (0 a 454 µmol L-1); foram também avaliados os efeitos sobre a nodulação e micorrização da soja, em casa de vegetação, em solo que recebeu, antes da semeadura, doses do herbicida equivalentes a 1,25 até 10 L ha-1. O Roundup mostrou-se inibitório ao crescimento de Bradyrhizobium spp. e aos fungos em meio de cultura, e esse efeito foi crescente com o aumento das concentrações aplicadas, tendo variado em razão das espécies ou estirpes avaliadas. No entanto, a inibição in vitro só ocorreu em concentrações muito superiores à dose recomendada para aplicações no campo. As estirpes BR 29, INPA 553A e INPA 80A mostraram-se mais tolerantes ao glifosato, em relação à estirpe BR 86. O efeito do herbicida sobre a germinação e o crescimento dos tubos germinativos dos esporos dos FMA foi diferenciado, tendo sido observada inibição decrescente de G. etunicatum para S. heterogama e G. margarita. A aplicação do herbicida ao solo, antes da semeadura, até a dose equivalente a 10 L ha-1 não influenciou na nodulação e na colonização micorrízica da soja.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMalty, Juliano dos SantosSiqueira, José OswaldoMoreira, Fátima Maria de Souza2006-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7135Pesquisa Agropecuaria Brasileira; v.41, n.2, fev. 2006; 285-291Pesquisa Agropecuária Brasileira; v.41, n.2, fev. 2006; 285-2911678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7135/4180info:eu-repo/semantics/openAccess2014-09-26T17:34:21Zoai:ojs.seer.sct.embrapa.br:article/7135Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-26T17:34:21Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouse
Efeitos do glifosato sobre microrganismos simbiotróficos de soja, em meio de cultura e casa de vegetação
title Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouse
spellingShingle Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouse
Malty, Juliano dos Santos
symbiosis; mycorrhiza; Bradyrhizobium; nodulation
simbiose; fungos micorrízicos; Bradyrhizobium; nodulação
title_short Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouse
title_full Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouse
title_fullStr Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouse
title_full_unstemmed Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouse
title_sort Effects of glyphosate on soybean symbiotic microorganisms, in culture media and in greenhouse
author Malty, Juliano dos Santos
author_facet Malty, Juliano dos Santos
Siqueira, José Oswaldo
Moreira, Fátima Maria de Souza
author_role author
author2 Siqueira, José Oswaldo
Moreira, Fátima Maria de Souza
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Malty, Juliano dos Santos
Siqueira, José Oswaldo
Moreira, Fátima Maria de Souza
dc.subject.por.fl_str_mv symbiosis; mycorrhiza; Bradyrhizobium; nodulation
simbiose; fungos micorrízicos; Bradyrhizobium; nodulação
topic symbiosis; mycorrhiza; Bradyrhizobium; nodulation
simbiose; fungos micorrízicos; Bradyrhizobium; nodulação
description The effects of the Roundup herbicide on three strains of Bradyrhizobium elkanii (BR 29, INPA 80A and INPA 553A), one of B. japonicum (BR 86), and on three species of arbuscular mycorrhizal fungi (AMF) (Gigaspora margarita, Glomus etunicatum and Scutellospora heterogama), were evaluated in culture media containing increasing concentrations of the herbicide (0–454 µM); evaluations were also made on the effects on nodulation and mycorrhiza colonization of soybean grown in a soil treated with Roundup doses equivalent to 1.25 to 10 L ha-1 before sowing. The herbicide inhibited growth of Bradyrhizobium spp. and AMF in culture medium. These effects were directly related to increasing concentrations, and varied depending on the strain and species evaluated. However, in vitro inhibition occurred only when concentrations were greater than that recommended for use in the field. Strains BR 29, INPA 553A and INPA 80A showed to be more resistant to glyphosate, when compared to BR 86. Herbicide inhibition on germination and growth of AMF spore germ tubes decreased from G. etunicatum to S. heterogama and G. margarita. Soil application of Roundup before sowing up to a dose equivalent to 10 L ha-1 had no effect on nodulation and mycorrhiza colonization of soybean.
publishDate 2006
dc.date.none.fl_str_mv 2006-02-01
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/7135
url https://seer.sct.embrapa.br/index.php/pab/article/view/7135
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7135/4180
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.41, n.2, fev. 2006; 285-291
Pesquisa Agropecuária Brasileira; v.41, n.2, fev. 2006; 285-291
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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