Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphere

Detalhes bibliográficos
Autor(a) principal: Andrade, Sara Adrián López de
Data de Publicação: 2004
Outros Autores: Silveira, Adriana Parada Dias da
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/6895
Resumo: The objective of this work was to evaluate the effects of lead addition on soil microbial biomass and activity under the influence of the rhizosphere of mycorrhizal soybean. The experimental design was completely randomized and arranged in a 4x2x2 factorial scheme, using 0, 150, 300 and 600 mg dm-3, inoculation or not of the arbuscular mycorrhizal fungus (AMF) Glomus macrocarpum and two sampling periods: soybean flowering and maturity. Microbial biomass C, soil respiration and the activity of three soil enzymes (deshydrogenase, alkaline phosphatase and arilsulphatase) were determined. The most affected enzyme was alkaline phophatase, whose activity was reduced in 60%, and which was a sensible indicator of the microbial metabolic stress caused by high Pb concentrations. Soybean mycorrhization directly influenced the rhizospheric microbiota leading to higher activity and biomass, mainly at soybean maturity stage. Soil microbiota showed stress symptoms due to Pb addition to soil.
id EMBRAPA-4_9f81f86212f0c734162acf96da4389f0
oai_identifier_str oai:ojs.seer.sct.embrapa.br:article/6895
network_acronym_str EMBRAPA-4
network_name_str Pesquisa Agropecuária Brasileira (Online)
repository_id_str
spelling Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphereBiomassa e atividade microbianas do solo sob influência de chumbo e da rizosfera da soja micorrizadasoil basal respiration; enzimatic activity; arbuscular mycorrhizal fungus; heavy metal; soil qualityrespiração basal do solo; atividade enzimática; fungo micorrízico arbuscular; metal pesado; qualidade do soloThe objective of this work was to evaluate the effects of lead addition on soil microbial biomass and activity under the influence of the rhizosphere of mycorrhizal soybean. The experimental design was completely randomized and arranged in a 4x2x2 factorial scheme, using 0, 150, 300 and 600 mg dm-3, inoculation or not of the arbuscular mycorrhizal fungus (AMF) Glomus macrocarpum and two sampling periods: soybean flowering and maturity. Microbial biomass C, soil respiration and the activity of three soil enzymes (deshydrogenase, alkaline phosphatase and arilsulphatase) were determined. The most affected enzyme was alkaline phophatase, whose activity was reduced in 60%, and which was a sensible indicator of the microbial metabolic stress caused by high Pb concentrations. Soybean mycorrhization directly influenced the rhizospheric microbiota leading to higher activity and biomass, mainly at soybean maturity stage. Soil microbiota showed stress symptoms due to Pb addition to soil.O objetivo deste trabalho foi avaliar o efeito da adição de chumbo (Pb) ao solo na biomassa e atividade microbianas do solo sob influência da rizosfera de soja micorrizada. O trabalho foi realizado em casa de vegetação, com delineamento inteiramente casualizado num esquema fatorial 4x2x2 utilizando-se 0, 150, 300 e 600 mg dm-3 de Pb, inoculação ou não do fungo micorrízico arbuscular (FMA), Glomus macrocarpum, e duas épocas de amostragem – florescimento e maturação da soja. Avaliaram-se o C da biomassa microbiana, a liberação de CO2 do solo e a atividade de três enzimas, desidrogenase, fosfatase alcalina e arilssulfatase. O Pb afetou negativamente o C da biomassa e a atividade da microbiota rizosférica, ocorrendo interação entre a presença de propágulos de FMA e o estádio de desenvolvimento da planta. A atividade da fosfatase alcalina foi a mais afetada pelas altas concentrações de Pb adicionadas ao solo, com redução de 60% na sua atividade, mostrando-se um indicador sensível do estresse metabólico da comunidade microbiana do solo causado pelo excesso de chumbo. A micorrização da soja influenciou de forma direta a microbiota rizosférica, resultando em maior atividade e biomassa, principalmente no estádio de maturação da soja. A microbiota do solo apresentou sintomas de estresse decorrentes da adição de chumbo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraAndrade, Sara Adrián López deSilveira, Adriana Parada Dias da2004-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6895Pesquisa Agropecuaria Brasileira; v.39, n.12, dez. 2004; 1191-1198Pesquisa Agropecuária Brasileira; v.39, n.12, dez. 2004; 1191-11981678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6895/3951info:eu-repo/semantics/openAccess2014-09-08T17:24:19Zoai:ojs.seer.sct.embrapa.br:article/6895Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-08T17:24:19Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphere
Biomassa e atividade microbianas do solo sob influência de chumbo e da rizosfera da soja micorrizada
title Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphere
spellingShingle Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphere
Andrade, Sara Adrián López de
soil basal respiration; enzimatic activity; arbuscular mycorrhizal fungus; heavy metal; soil quality
respiração basal do solo; atividade enzimática; fungo micorrízico arbuscular; metal pesado; qualidade do solo
title_short Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphere
title_full Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphere
title_fullStr Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphere
title_full_unstemmed Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphere
title_sort Soil microbial biomass and activity under the influence of lead addition and mycorrhizal soybean rhizosphere
author Andrade, Sara Adrián López de
author_facet Andrade, Sara Adrián López de
Silveira, Adriana Parada Dias da
author_role author
author2 Silveira, Adriana Parada Dias da
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Andrade, Sara Adrián López de
Silveira, Adriana Parada Dias da
dc.subject.por.fl_str_mv soil basal respiration; enzimatic activity; arbuscular mycorrhizal fungus; heavy metal; soil quality
respiração basal do solo; atividade enzimática; fungo micorrízico arbuscular; metal pesado; qualidade do solo
topic soil basal respiration; enzimatic activity; arbuscular mycorrhizal fungus; heavy metal; soil quality
respiração basal do solo; atividade enzimática; fungo micorrízico arbuscular; metal pesado; qualidade do solo
description The objective of this work was to evaluate the effects of lead addition on soil microbial biomass and activity under the influence of the rhizosphere of mycorrhizal soybean. The experimental design was completely randomized and arranged in a 4x2x2 factorial scheme, using 0, 150, 300 and 600 mg dm-3, inoculation or not of the arbuscular mycorrhizal fungus (AMF) Glomus macrocarpum and two sampling periods: soybean flowering and maturity. Microbial biomass C, soil respiration and the activity of three soil enzymes (deshydrogenase, alkaline phosphatase and arilsulphatase) were determined. The most affected enzyme was alkaline phophatase, whose activity was reduced in 60%, and which was a sensible indicator of the microbial metabolic stress caused by high Pb concentrations. Soybean mycorrhization directly influenced the rhizospheric microbiota leading to higher activity and biomass, mainly at soybean maturity stage. Soil microbiota showed stress symptoms due to Pb addition to soil.
publishDate 2004
dc.date.none.fl_str_mv 2004-12-01
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/6895
url https://seer.sct.embrapa.br/index.php/pab/article/view/6895
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/6895/3951
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.39, n.12, dez. 2004; 1191-1198
Pesquisa Agropecuária Brasileira; v.39, n.12, dez. 2004; 1191-1198
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
_version_ 1793416693177909248

Registros relacionados