Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , , , , |
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/6718 |
Resumo: | The objective of this study was to evaluate the structure and diversity of arbuscular mycorrhizal fungi (AMF) in revegetated areas at Porto Trombetas, Pará, Brazil. Composite samples were collected in August (dry season) and April (wet season) in areas with top soil after 2, 4, 6, 12 and 16 years of revegetation, in area without the top soil or vegetation, and in a pristine forest. The AMF spores were extracted, and the species identified. The relative density and frequency of occurrence of each species, the Shannon-Wiener and Simpson indexes were calculated. The results indicated that the density of AMF spores did not differ significantly with season. However, the number of AMF species was significantly higher in the dry season at the pristine forest and in the area two years after revegetation. Among the AMF species, Glomus macrocarpum and Acaulospora mellea were represented in higher numbers. After two years of planting, the diversity was highest and the dominance of AMF species was lowest. The addition of top soil with the planting of mycorrhizal seedlings were efficient to colonize areas with AMF after open cast bauxite mining. |
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Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, BrazilOcorrência de fungos micorrízicos arbusculares em áreas revegetadas após mineração de bauxita em Porto Trombetas, Parávesicular arbuscular mycorrhizae; spores; revegetation; environmental recoverymicorriza vesicular-arbuscular; esporo; revegetação; recuperação ambientalThe objective of this study was to evaluate the structure and diversity of arbuscular mycorrhizal fungi (AMF) in revegetated areas at Porto Trombetas, Pará, Brazil. Composite samples were collected in August (dry season) and April (wet season) in areas with top soil after 2, 4, 6, 12 and 16 years of revegetation, in area without the top soil or vegetation, and in a pristine forest. The AMF spores were extracted, and the species identified. The relative density and frequency of occurrence of each species, the Shannon-Wiener and Simpson indexes were calculated. The results indicated that the density of AMF spores did not differ significantly with season. However, the number of AMF species was significantly higher in the dry season at the pristine forest and in the area two years after revegetation. Among the AMF species, Glomus macrocarpum and Acaulospora mellea were represented in higher numbers. After two years of planting, the diversity was highest and the dominance of AMF species was lowest. The addition of top soil with the planting of mycorrhizal seedlings were efficient to colonize areas with AMF after open cast bauxite mining.O objetivo deste trabalho foi avaliar a composição e a diversidade de fungos micorrízicos arbusculares (FMA) em áreas em processo de revegetação na região de Porto Trombetas, PA. Coletaram-se amostras compostas de solo em revegetação com 2, 4, 6, 12 e 16 anos, em subsolo exposto sem vegetação e em floresta primária, nos meses de agosto de 1998 (estação seca) e abril de 1999 (estação chuvosa). Os esporos de FMA foram extraídos e identificados taxonomicamente. Analisou-se a densidade relativa, a freqüência de cada espécie e os índices de Shannon-Wiener e de Simpson. Os resultados indicaram que a densidade de esporos de FMA não diferiu significativamente em razão da estação do ano. O número de espécies foi maior no período seco, na floresta primária e na área revegetada aos 2 anos de idade. Entre as espécies de FMA recuperadas, Glomus macrocarpum e Acaulospora mellea foram as que apresentaram maior ocorrência. A diversidade de espécies de FMA foi mais alta e a dominância de espécies foi mais baixa na área revegetada com 2 anos de idade. O retorno do horizonte superficial orgânico com o plantio de mudas micorrizadas é uma prática eficiente para a produção de esporos em subsolo resultante da mineração de bauxita.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCaproni, Ana LucyFranco, Avílio AntônioBerbara, Ricardo Luis LouroTrufem, Sandra BotelhoGranha, José Rodolfo Dantas de OliveiraMonteiro, Ana Beatriz2003-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6718Pesquisa Agropecuaria Brasileira; v.38, n.12, dez. 2003; 1409-1418Pesquisa Agropecuária Brasileira; v.38, n.12, dez. 2003; 1409-14181678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6718/3775info:eu-repo/semantics/openAccess2010-08-20T18:28:46Zoai:ojs.seer.sct.embrapa.br:article/6718Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-08-20T18:28:46Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, Brazil Ocorrência de fungos micorrízicos arbusculares em áreas revegetadas após mineração de bauxita em Porto Trombetas, Pará |
title |
Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, Brazil |
spellingShingle |
Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, Brazil Caproni, Ana Lucy vesicular arbuscular mycorrhizae; spores; revegetation; environmental recovery micorriza vesicular-arbuscular; esporo; revegetação; recuperação ambiental |
title_short |
Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, Brazil |
title_full |
Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, Brazil |
title_fullStr |
Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, Brazil |
title_full_unstemmed |
Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, Brazil |
title_sort |
Arbuscular mycorrhizal fungi occurrence in revegetated areas after bauxite mining at Porto Trombetas, Pará State, Brazil |
author |
Caproni, Ana Lucy |
author_facet |
Caproni, Ana Lucy Franco, Avílio Antônio Berbara, Ricardo Luis Louro Trufem, Sandra Botelho Granha, José Rodolfo Dantas de Oliveira Monteiro, Ana Beatriz |
author_role |
author |
author2 |
Franco, Avílio Antônio Berbara, Ricardo Luis Louro Trufem, Sandra Botelho Granha, José Rodolfo Dantas de Oliveira Monteiro, Ana Beatriz |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Caproni, Ana Lucy Franco, Avílio Antônio Berbara, Ricardo Luis Louro Trufem, Sandra Botelho Granha, José Rodolfo Dantas de Oliveira Monteiro, Ana Beatriz |
dc.subject.por.fl_str_mv |
vesicular arbuscular mycorrhizae; spores; revegetation; environmental recovery micorriza vesicular-arbuscular; esporo; revegetação; recuperação ambiental |
topic |
vesicular arbuscular mycorrhizae; spores; revegetation; environmental recovery micorriza vesicular-arbuscular; esporo; revegetação; recuperação ambiental |
description |
The objective of this study was to evaluate the structure and diversity of arbuscular mycorrhizal fungi (AMF) in revegetated areas at Porto Trombetas, Pará, Brazil. Composite samples were collected in August (dry season) and April (wet season) in areas with top soil after 2, 4, 6, 12 and 16 years of revegetation, in area without the top soil or vegetation, and in a pristine forest. The AMF spores were extracted, and the species identified. The relative density and frequency of occurrence of each species, the Shannon-Wiener and Simpson indexes were calculated. The results indicated that the density of AMF spores did not differ significantly with season. However, the number of AMF species was significantly higher in the dry season at the pristine forest and in the area two years after revegetation. Among the AMF species, Glomus macrocarpum and Acaulospora mellea were represented in higher numbers. After two years of planting, the diversity was highest and the dominance of AMF species was lowest. The addition of top soil with the planting of mycorrhizal seedlings were efficient to colonize areas with AMF after open cast bauxite mining. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-12-01 |
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/6718 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/6718 |
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/6718/3775 |
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.38, n.12, dez. 2003; 1409-1418 Pesquisa Agropecuária Brasileira; v.38, n.12, dez. 2003; 1409-1418 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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1793416675214753792 |