Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soil

Detalhes bibliográficos
Autor(a) principal: da Silva, Silvana
Data de Publicação: 2006
Outros Autores: Siqueira, José Oswaldo, Sousa Soares, Cláudio Roberto Fonsêca
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/7341
Resumo: –The influence of 14 arbuscular mycorrhiza fungal isolates (AMF) on brachiariagrass growth and extraction of Zn, Cd, Cu and Pb from a contaminated soil was evaluated in a greenhouse experiment. Mycorrhizal and nonmycorrhizal Brachiaria decumbens plants were grown in pots with 0.92 kg of soil containing (mg kg-1): Zn, 3,300; Cu, 60; Cd, 29; Pb, 73. The AMF increased dry matter yield in 84%. Plant heavy metal concentrations were high and were inversely related to dry matter yield. Isolates caused no effect on Pb, but reduced shoot Zn, Cd and Cu concentrations by 20, 28 and 63%, respectively. It was observed effect of mycorrhiza on Cu accumulation in roots (over 1,000%). Isolates enhanced the total amount of soil extracted metals by 845, 142, 68 and 54% for Cu, Pb, Zn and Cd, respectively. Only Acaulospora spinosa, Acaulospora morrowiae-UFLA and Gigaspora gigantea enhanced simultaneous soil extraction of all the four metals. The AMF increase the capacity of B. decumbens to extract contaminant heavy metals from soil, with differentiated effects amongst species.
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spelling Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soilFungos micorrízicos no crescimento e na extração de metais pesados pela braquiária em solo contaminadoBrachiaria decumbens; root symbiosis; phytoextraction; soil fungi; soil polutionBrachiaria decumbens; simbiose radicular; fitoextração; fungos do solo; poluição do solo–The influence of 14 arbuscular mycorrhiza fungal isolates (AMF) on brachiariagrass growth and extraction of Zn, Cd, Cu and Pb from a contaminated soil was evaluated in a greenhouse experiment. Mycorrhizal and nonmycorrhizal Brachiaria decumbens plants were grown in pots with 0.92 kg of soil containing (mg kg-1): Zn, 3,300; Cu, 60; Cd, 29; Pb, 73. The AMF increased dry matter yield in 84%. Plant heavy metal concentrations were high and were inversely related to dry matter yield. Isolates caused no effect on Pb, but reduced shoot Zn, Cd and Cu concentrations by 20, 28 and 63%, respectively. It was observed effect of mycorrhiza on Cu accumulation in roots (over 1,000%). Isolates enhanced the total amount of soil extracted metals by 845, 142, 68 and 54% for Cu, Pb, Zn and Cd, respectively. Only Acaulospora spinosa, Acaulospora morrowiae-UFLA and Gigaspora gigantea enhanced simultaneous soil extraction of all the four metals. The AMF increase the capacity of B. decumbens to extract contaminant heavy metals from soil, with differentiated effects amongst species.–Avaliou-se, em casa de vegetação, a influência de 14 isolados de fungos micorrízicos arbusculares (FMA) no crescimento e extração de Zn, Cd, Cu e Pb pela Brachiaria decumbens em solo contaminado. Foram utilizadas plantas com e sem FMA, em vasos com 0,92 kg de solo com (mg kg-1): Zn, 3.300; Cu, 60; Cd, 29; Pb, 73. Os isolados fúngicos tiveram efeitos diferenciados no crescimento e aumentaram a produção de matéria seca em 84%. Os teores de metais na planta foram elevados e apresentaram relação inversa com a produção de matéria seca. Verificou-se que os FMA não afetaram os teores de Pb, mas reduziram em 20, 28 e 63% os teores de Zn, Cd e Cu na parte aérea, respectivamente, e aumentaram os teores de Cu nas raízes em mais de 1.000%. Os FMA aumentaram a quantidade de metais extraídos do solo em 845, 142, 68 e 54% para Cu, Pb, Zn e Cd, respectivamente. Acaulospora spinosa, Acaulospora morrowiae-UFLA e Gigaspora gigantea aumentaram a extração simultânea dos quatro metais contaminantes. Os FMA, de acordo com a espécie, aumentam a capacidade da B. decumbens de extrair metais pesados do solo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária Brasileirada Silva, SilvanaSiqueira, José OswaldoSousa Soares, Cláudio Roberto Fonsêca2006-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7341Pesquisa Agropecuaria Brasileira; v.41, n.12, dez. 2006; 1749-1757Pesquisa Agropecuária Brasileira; v.41, n.12, dez. 2006; 1749-17571678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7341/4386info:eu-repo/semantics/openAccess2014-10-08T16:10:40Zoai:ojs.seer.sct.embrapa.br:article/7341Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-10-08T16:10:40Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soil
Fungos micorrízicos no crescimento e na extração de metais pesados pela braquiária em solo contaminado
title Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soil
spellingShingle Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soil
da Silva, Silvana
Brachiaria decumbens; root symbiosis; phytoextraction; soil fungi; soil polution
Brachiaria decumbens; simbiose radicular; fitoextração; fungos do solo; poluição do solo
title_short Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soil
title_full Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soil
title_fullStr Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soil
title_full_unstemmed Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soil
title_sort Mycorrhizal fungi influence on brachiariagrass growth and heavy metal extraction in a contaminated soil
author da Silva, Silvana
author_facet da Silva, Silvana
Siqueira, José Oswaldo
Sousa Soares, Cláudio Roberto Fonsêca
author_role author
author2 Siqueira, José Oswaldo
Sousa Soares, Cláudio Roberto Fonsêca
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv da Silva, Silvana
Siqueira, José Oswaldo
Sousa Soares, Cláudio Roberto Fonsêca
dc.subject.por.fl_str_mv Brachiaria decumbens; root symbiosis; phytoextraction; soil fungi; soil polution
Brachiaria decumbens; simbiose radicular; fitoextração; fungos do solo; poluição do solo
topic Brachiaria decumbens; root symbiosis; phytoextraction; soil fungi; soil polution
Brachiaria decumbens; simbiose radicular; fitoextração; fungos do solo; poluição do solo
description –The influence of 14 arbuscular mycorrhiza fungal isolates (AMF) on brachiariagrass growth and extraction of Zn, Cd, Cu and Pb from a contaminated soil was evaluated in a greenhouse experiment. Mycorrhizal and nonmycorrhizal Brachiaria decumbens plants were grown in pots with 0.92 kg of soil containing (mg kg-1): Zn, 3,300; Cu, 60; Cd, 29; Pb, 73. The AMF increased dry matter yield in 84%. Plant heavy metal concentrations were high and were inversely related to dry matter yield. Isolates caused no effect on Pb, but reduced shoot Zn, Cd and Cu concentrations by 20, 28 and 63%, respectively. It was observed effect of mycorrhiza on Cu accumulation in roots (over 1,000%). Isolates enhanced the total amount of soil extracted metals by 845, 142, 68 and 54% for Cu, Pb, Zn and Cd, respectively. Only Acaulospora spinosa, Acaulospora morrowiae-UFLA and Gigaspora gigantea enhanced simultaneous soil extraction of all the four metals. The AMF increase the capacity of B. decumbens to extract contaminant heavy metals from soil, with differentiated effects amongst species.
publishDate 2006
dc.date.none.fl_str_mv 2006-12-01
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/7341
url https://seer.sct.embrapa.br/index.php/pab/article/view/7341
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/7341/4386
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.12, dez. 2006; 1749-1757
Pesquisa Agropecuária Brasileira; v.41, n.12, dez. 2006; 1749-1757
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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