Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado

Detalhes bibliográficos
Autor(a) principal: Bresolin, Joana Dias
Data de Publicação: 2010
Outros Autores: Bustamante, Mercedes Maria da Cunha, Krüger, Ricardo Henrique, Silva, Maria Regina Silveira Sartori da, Perez, K. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UnB
Texto Completo: http://repositorio.unb.br/handle/10482/27876
https://dx.doi.org/10.1590/S1517-83822010000200021
Resumo: Soybean is the most important oilseed cultivated in the world and Brazil is the second major producer. Expansion of soybean cultivation has direct and indirect impacts on natural habitats of high conservation value, such as the Brazilian savannas (Cerrado). In addition to deforestation, land conversion includes the use of fertilizers and pesticides and can lead to changes in the soil microbial communities. This study evaluated the soil bacterial and fungal communities and the microbial biomass C in a native Cerrado and in a similar no-tillage soybean monoculture area using PCR-DGGE and sequencing of bands. Compared to the native area, microbial biomass C was lower in the soybean area and cluster analysis indicated that the structure of soil microbial communities differed. 16S and 18S rDNA dendrograms analysis did not show differences between row and inter-row samples, but microbial biomass C values were higher in inter-rows during soybean fructification and harvest. The study pointed to different responses and alterations in bacterial and fungal communities due to soil cover changes (fallow x growth period) and crop development. These changes might be related to differences in the pattern of root exudates affecting the soil microbial community. Among the bands chosen for sequencing there was a predominance of actinobacteria, y-proteobacteria and ascomycetous divisions. Even under no-tillage management methods, the soil microbial community was affected due to changes in the soil cover and crop development, hence warning of the impacts caused by changes in land use.
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spelling Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian CerradoSavanasUso da terraCultivoComunidades microbianasEletroforese em gelSojaSoybean is the most important oilseed cultivated in the world and Brazil is the second major producer. Expansion of soybean cultivation has direct and indirect impacts on natural habitats of high conservation value, such as the Brazilian savannas (Cerrado). In addition to deforestation, land conversion includes the use of fertilizers and pesticides and can lead to changes in the soil microbial communities. This study evaluated the soil bacterial and fungal communities and the microbial biomass C in a native Cerrado and in a similar no-tillage soybean monoculture area using PCR-DGGE and sequencing of bands. Compared to the native area, microbial biomass C was lower in the soybean area and cluster analysis indicated that the structure of soil microbial communities differed. 16S and 18S rDNA dendrograms analysis did not show differences between row and inter-row samples, but microbial biomass C values were higher in inter-rows during soybean fructification and harvest. The study pointed to different responses and alterations in bacterial and fungal communities due to soil cover changes (fallow x growth period) and crop development. These changes might be related to differences in the pattern of root exudates affecting the soil microbial community. Among the bands chosen for sequencing there was a predominance of actinobacteria, y-proteobacteria and ascomycetous divisions. Even under no-tillage management methods, the soil microbial community was affected due to changes in the soil cover and crop development, hence warning of the impacts caused by changes in land use.Sociedade Brasileira de Microbiologia2017-12-07T04:54:38Z2017-12-07T04:54:38Z2010-06info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfBRESOLIN, J. D. et al. Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado. Brazilian Journal of Microbiology, São Paulo, v. 41, n. 2, p. 391-403, abr./jun. 2010. DOI: http://dx.doi.org/10.1590/S1517-83822010000200021. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200021&lng=en&nrm=iso. Acesso em: 25 jan. 2021.http://repositorio.unb.br/handle/10482/27876https://dx.doi.org/10.1590/S1517-83822010000200021Brazilian Journal of Microbiology - All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License (CC BY NC 4.0). Fonte: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200021&lng=en&nrm=iso&tlng=en. Acesso em: 25 jan. 2021.info:eu-repo/semantics/openAccessBresolin, Joana DiasBustamante, Mercedes Maria da CunhaKrüger, Ricardo HenriqueSilva, Maria Regina Silveira Sartori daPerez, K. S.engreponame:Repositório Institucional da UnBinstname:Universidade de Brasília (UnB)instacron:UNB2023-05-24T23:43:26Zoai:repositorio.unb.br:10482/27876Repositório InstitucionalPUBhttps://repositorio.unb.br/oai/requestrepositorio@unb.bropendoar:2023-05-24T23:43:26Repositório Institucional da UnB - Universidade de Brasília (UnB)false
dc.title.none.fl_str_mv Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
title Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
spellingShingle Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
Bresolin, Joana Dias
Savanas
Uso da terra
Cultivo
Comunidades microbianas
Eletroforese em gel
Soja
title_short Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
title_full Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
title_fullStr Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
title_full_unstemmed Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
title_sort Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
author Bresolin, Joana Dias
author_facet Bresolin, Joana Dias
Bustamante, Mercedes Maria da Cunha
Krüger, Ricardo Henrique
Silva, Maria Regina Silveira Sartori da
Perez, K. S.
author_role author
author2 Bustamante, Mercedes Maria da Cunha
Krüger, Ricardo Henrique
Silva, Maria Regina Silveira Sartori da
Perez, K. S.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Bresolin, Joana Dias
Bustamante, Mercedes Maria da Cunha
Krüger, Ricardo Henrique
Silva, Maria Regina Silveira Sartori da
Perez, K. S.
dc.subject.por.fl_str_mv Savanas
Uso da terra
Cultivo
Comunidades microbianas
Eletroforese em gel
Soja
topic Savanas
Uso da terra
Cultivo
Comunidades microbianas
Eletroforese em gel
Soja
description Soybean is the most important oilseed cultivated in the world and Brazil is the second major producer. Expansion of soybean cultivation has direct and indirect impacts on natural habitats of high conservation value, such as the Brazilian savannas (Cerrado). In addition to deforestation, land conversion includes the use of fertilizers and pesticides and can lead to changes in the soil microbial communities. This study evaluated the soil bacterial and fungal communities and the microbial biomass C in a native Cerrado and in a similar no-tillage soybean monoculture area using PCR-DGGE and sequencing of bands. Compared to the native area, microbial biomass C was lower in the soybean area and cluster analysis indicated that the structure of soil microbial communities differed. 16S and 18S rDNA dendrograms analysis did not show differences between row and inter-row samples, but microbial biomass C values were higher in inter-rows during soybean fructification and harvest. The study pointed to different responses and alterations in bacterial and fungal communities due to soil cover changes (fallow x growth period) and crop development. These changes might be related to differences in the pattern of root exudates affecting the soil microbial community. Among the bands chosen for sequencing there was a predominance of actinobacteria, y-proteobacteria and ascomycetous divisions. Even under no-tillage management methods, the soil microbial community was affected due to changes in the soil cover and crop development, hence warning of the impacts caused by changes in land use.
publishDate 2010
dc.date.none.fl_str_mv 2010-06
2017-12-07T04:54:38Z
2017-12-07T04:54:38Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv BRESOLIN, J. D. et al. Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado. Brazilian Journal of Microbiology, São Paulo, v. 41, n. 2, p. 391-403, abr./jun. 2010. DOI: http://dx.doi.org/10.1590/S1517-83822010000200021. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200021&lng=en&nrm=iso. Acesso em: 25 jan. 2021.
http://repositorio.unb.br/handle/10482/27876
https://dx.doi.org/10.1590/S1517-83822010000200021
identifier_str_mv BRESOLIN, J. D. et al. Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado. Brazilian Journal of Microbiology, São Paulo, v. 41, n. 2, p. 391-403, abr./jun. 2010. DOI: http://dx.doi.org/10.1590/S1517-83822010000200021. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200021&lng=en&nrm=iso. Acesso em: 25 jan. 2021.
url http://repositorio.unb.br/handle/10482/27876
https://dx.doi.org/10.1590/S1517-83822010000200021
dc.language.iso.fl_str_mv eng
language eng
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 Sociedade Brasileira de Microbiologia
publisher.none.fl_str_mv Sociedade Brasileira de Microbiologia
dc.source.none.fl_str_mv reponame:Repositório Institucional da UnB
instname:Universidade de Brasília (UnB)
instacron:UNB
instname_str Universidade de Brasília (UnB)
instacron_str UNB
institution UNB
reponame_str Repositório Institucional da UnB
collection Repositório Institucional da UnB
repository.name.fl_str_mv Repositório Institucional da UnB - Universidade de Brasília (UnB)
repository.mail.fl_str_mv repositorio@unb.br
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