Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkanii

Detalhes bibliográficos
Autor(a) principal: Ramos, Maria Lucrecia Gerosa
Data de Publicação: 2005
Outros Autores: Parsons, Richard, Sprent, Janet Irene
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6978
Resumo: The objective of this work was to study the response to water stress of a drought sensitive soybean cultivar inoculated with Bradyrhizobium japonicum (strain CB1809, Semia 586) and B. elkanii (strain 29W, Semia 5019). CB1809 nodulated plants produced a significantly higher root fraction (19%) than 29W (14.6%). Plants inoculated with CB1809 produced less nodules and accumulated more nitrogen than those inoculated with 29W. In general, low amounts of ureides in nodules were found in watered plants inoculated with either CB1809 or 29W strains, but those levels were five-fold increased in stressed plants inoculated with CB1809. Nodules formed by strain CB1809 had aspartate and glutamate as major amino acids, while those formed by 29W had glutamate, asparagine and alanine. In nodules of plants inoculated with CB1809 aspartate showed the highest accumulation (5 mmol g-1); in stressed plants this amino acid reached a value of 26 mmol g-1, and asparagine was not detected. Nodules formed by the strain 29W accumulated 1 mmol g-1 of aspartate, whether plants were stressed or not. Asparagine was the major amino acid found in nodules from watered plants (6 mmol g-1) and the amount of this amino acid was six-fold increased when plants were water stressed.
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spelling Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkaniiAlterações na concentração de ureídos e aminoácidos em soja sob estresse hídrico com inoculação de Bradyrhizobium japonicum e B. elkaniiGlycine max; alanine; asparagine; aspartate; glutamate; nitrogen fixationGlycine max; alanina; asparagina; aspartato; fixação de nitrogênio; glutamatoThe objective of this work was to study the response to water stress of a drought sensitive soybean cultivar inoculated with Bradyrhizobium japonicum (strain CB1809, Semia 586) and B. elkanii (strain 29W, Semia 5019). CB1809 nodulated plants produced a significantly higher root fraction (19%) than 29W (14.6%). Plants inoculated with CB1809 produced less nodules and accumulated more nitrogen than those inoculated with 29W. In general, low amounts of ureides in nodules were found in watered plants inoculated with either CB1809 or 29W strains, but those levels were five-fold increased in stressed plants inoculated with CB1809. Nodules formed by strain CB1809 had aspartate and glutamate as major amino acids, while those formed by 29W had glutamate, asparagine and alanine. In nodules of plants inoculated with CB1809 aspartate showed the highest accumulation (5 mmol g-1); in stressed plants this amino acid reached a value of 26 mmol g-1, and asparagine was not detected. Nodules formed by the strain 29W accumulated 1 mmol g-1 of aspartate, whether plants were stressed or not. Asparagine was the major amino acid found in nodules from watered plants (6 mmol g-1) and the amount of this amino acid was six-fold increased when plants were water stressed. O objetivo deste trabalho foi estudar a resposta da soja, com inoculação de Bradyrhizobium japonicum (estirpe CB1809, Semia 586) ou B. elkanii (estirpe 29W, Semia 5019), ao estresse hídrico. Plantas com inoculação da estirpe CB1809 produziram maior fração de raízes (19%) do que aquelas com inoculação de 29W (14,6%). As plantas com inoculação de CB1809 produziram menos nódulos e acumularam mais nitrogênio do que aquelas com inoculação de 29W. Em geral, baixos teores de ureídos nos nódulos foram encontrados em plantas irrigadas, com inoculação de CB1809 ou 29W, mas esses valores aumentaram cinco vezes em plantas com CB1809, sob estresse hídrico. Os nódulos formados pela estirpe CB1809 produziram, principalmente, aspartato e glutamato, ao passo que aqueles formados pela estirpe 29W produziram mais glutamato, asparagina e alanina. Nos nódulos de plantas com inoculação de CB1809, o aspartato foi o aminoácido que apresentou maior acumulação (5 mmol g-1); em plantas sob estresse hídrico, esse aminoácido alcançou 26 mmol g-1; e não foi detectada asparagina. Os nódulos formados pela estirpe 29W acumularam 1 mmol g-1 de aspartato, em plantas com ou sem estresse. A asparagina foi o principal aminoácido encontrado nos nódulos de plantas irrigadas (6 mmol g-1); a quantidade desse aminoácido foi aumentada em seis vezes, quando as plantas foram submetidas ao estresse hídrico.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraRamos, Maria Lucrecia GerosaParsons, RichardSprent, Janet Irene2005-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6978Pesquisa Agropecuaria Brasileira; v.40, n.5, maio 2005; 453-458Pesquisa Agropecuária Brasileira; v.40, n.5, maio 2005; 453-4581678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/6978/4026info:eu-repo/semantics/openAccess2014-09-22T18:14:09Zoai:ojs.seer.sct.embrapa.br:article/6978Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-22T18:14:09Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkanii
Alterações na concentração de ureídos e aminoácidos em soja sob estresse hídrico com inoculação de Bradyrhizobium japonicum e B. elkanii
title Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkanii
spellingShingle Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkanii
Ramos, Maria Lucrecia Gerosa
Glycine max; alanine; asparagine; aspartate; glutamate; nitrogen fixation
Glycine max; alanina; asparagina; aspartato; fixação de nitrogênio; glutamato
title_short Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkanii
title_full Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkanii
title_fullStr Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkanii
title_full_unstemmed Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkanii
title_sort Differences in ureide and amino acid content of water stressed soybean inoculated with Bradyrhizobium japonicum and B. elkanii
author Ramos, Maria Lucrecia Gerosa
author_facet Ramos, Maria Lucrecia Gerosa
Parsons, Richard
Sprent, Janet Irene
author_role author
author2 Parsons, Richard
Sprent, Janet Irene
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Ramos, Maria Lucrecia Gerosa
Parsons, Richard
Sprent, Janet Irene
dc.subject.por.fl_str_mv Glycine max; alanine; asparagine; aspartate; glutamate; nitrogen fixation
Glycine max; alanina; asparagina; aspartato; fixação de nitrogênio; glutamato
topic Glycine max; alanine; asparagine; aspartate; glutamate; nitrogen fixation
Glycine max; alanina; asparagina; aspartato; fixação de nitrogênio; glutamato
description The objective of this work was to study the response to water stress of a drought sensitive soybean cultivar inoculated with Bradyrhizobium japonicum (strain CB1809, Semia 586) and B. elkanii (strain 29W, Semia 5019). CB1809 nodulated plants produced a significantly higher root fraction (19%) than 29W (14.6%). Plants inoculated with CB1809 produced less nodules and accumulated more nitrogen than those inoculated with 29W. In general, low amounts of ureides in nodules were found in watered plants inoculated with either CB1809 or 29W strains, but those levels were five-fold increased in stressed plants inoculated with CB1809. Nodules formed by strain CB1809 had aspartate and glutamate as major amino acids, while those formed by 29W had glutamate, asparagine and alanine. In nodules of plants inoculated with CB1809 aspartate showed the highest accumulation (5 mmol g-1); in stressed plants this amino acid reached a value of 26 mmol g-1, and asparagine was not detected. Nodules formed by the strain 29W accumulated 1 mmol g-1 of aspartate, whether plants were stressed or not. Asparagine was the major amino acid found in nodules from watered plants (6 mmol g-1) and the amount of this amino acid was six-fold increased when plants were water stressed.
publishDate 2005
dc.date.none.fl_str_mv 2005-05-01
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/6978
url https://seer.sct.embrapa.br/index.php/pab/article/view/6978
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6978/4026
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.40, n.5, maio 2005; 453-458
Pesquisa Agropecuária Brasileira; v.40, n.5, maio 2005; 453-458
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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