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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Cerrados. |
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Data corrente: |
15/09/2010 |
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Data da última atualização: |
15/09/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEIXOTO, R. S.; CHAER, G. M.; FRANCO, N.; REIS JUNIOR, F. B. dos; MENDES, I. de C.; ROSADO, A. S. |
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Afiliação: |
RAQUEL. S. PEIXOTO, UFRJ; GUILHERME MONTANDON CHAER, CNPAB; N. FRANCO, UFRJ; FABIO BUENO DOS REIS JUNIOR, CPAC; IEDA DE CARVALHO MENDES, CPAC; A. S. ROSADO, UFRJ. |
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Título: |
A decade of land use contributes to changes in the chemistry, biochemistry and bacterial community structures of soils in the Cerrado. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Antonie van Leeuwenhoek, v. 98, n. 3, p. 403-413, 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
The bacterial community structures (BCSs) of Cerrado soils cultivated under conventional tillage (CT), no-tillage (NT) and under native Cerrado (NC) vegetation were evaluated using PCR/DGGE of bacterial 16S rRNA (rrs) and rpoB genes and of Pseudomonas group genes. Soil chemical analysis, microbial biomass and the enzyme activities were also evaluated and correlated with the BCS measurements. The multivariate ordinations of DGGE profiles showed differences between the BCS of the NC area and those from cultivated areas. The BCSs of the CT and NT areas also differed in all DGGE fingerprints, including changes in the profile of Pseudomonas populations, indicating that agricultural systems can also be responsible for changes within specific microbial niches, although the clearest differences were found in the rpoB profiles. The MRPP analysis demonstrated significant differences between the BCSs from different soil layers of NT areas based on all gene fingerprints and those of NC areas based on bacterial 16S rRNA and rpoB genes fingerprints. No differences were observed in the microbial fingerprints of CT samples from different depths, indicating that ploughing affected the original BCS stratification. The BCS from NC areas, based on all gene fingerprints, could be related to higher levels of soil acidity and higher amounts of MBC and of phosphatase activity. In contrast, the BCSs from cultivated areas were related to higher levels of Ca + Mg, P and K, likely as a result of a history of chemical fertilisation in these areas. The relationships between rpoB and Pseudomonas BCSs and all chemical and biochemical properties of soils were significant, according to a Mantel test (P < 0.05), indicating that the different changes in soil properties induced by soil use or management may drive the formation of the soil BCS. MenosThe bacterial community structures (BCSs) of Cerrado soils cultivated under conventional tillage (CT), no-tillage (NT) and under native Cerrado (NC) vegetation were evaluated using PCR/DGGE of bacterial 16S rRNA (rrs) and rpoB genes and of Pseudomonas group genes. Soil chemical analysis, microbial biomass and the enzyme activities were also evaluated and correlated with the BCS measurements. The multivariate ordinations of DGGE profiles showed differences between the BCS of the NC area and those from cultivated areas. The BCSs of the CT and NT areas also differed in all DGGE fingerprints, including changes in the profile of Pseudomonas populations, indicating that agricultural systems can also be responsible for changes within specific microbial niches, although the clearest differences were found in the rpoB profiles. The MRPP analysis demonstrated significant differences between the BCSs from different soil layers of NT areas based on all gene fingerprints and those of NC areas based on bacterial 16S rRNA and rpoB genes fingerprints. No differences were observed in the microbial fingerprints of CT samples from different depths, indicating that ploughing affected the original BCS stratification. The BCS from NC areas, based on all gene fingerprints, could be related to higher levels of soil acidity and higher amounts of MBC and of phosphatase activity. In contrast, the BCSs from cultivated areas were related to higher levels of Ca + Mg, P and K, likely as a result of a hist... Mostrar Tudo |
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Thesagro: |
Bactéria; Cerrado; Plantio; Solo; Uso da Terra. |
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Categoria do assunto: |
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Marc: |
LEADER 02536naa a2200241 a 4500
001 1862292
005 2010-09-15
008 2010 bl --- 0-- u #d
100 1 $aPEIXOTO, R. S.
245 $aA decade of land use contributes to changes in the chemistry, biochemistry and bacterial community structures of soils in the Cerrado.
260 $c2010
520 $aThe bacterial community structures (BCSs) of Cerrado soils cultivated under conventional tillage (CT), no-tillage (NT) and under native Cerrado (NC) vegetation were evaluated using PCR/DGGE of bacterial 16S rRNA (rrs) and rpoB genes and of Pseudomonas group genes. Soil chemical analysis, microbial biomass and the enzyme activities were also evaluated and correlated with the BCS measurements. The multivariate ordinations of DGGE profiles showed differences between the BCS of the NC area and those from cultivated areas. The BCSs of the CT and NT areas also differed in all DGGE fingerprints, including changes in the profile of Pseudomonas populations, indicating that agricultural systems can also be responsible for changes within specific microbial niches, although the clearest differences were found in the rpoB profiles. The MRPP analysis demonstrated significant differences between the BCSs from different soil layers of NT areas based on all gene fingerprints and those of NC areas based on bacterial 16S rRNA and rpoB genes fingerprints. No differences were observed in the microbial fingerprints of CT samples from different depths, indicating that ploughing affected the original BCS stratification. The BCS from NC areas, based on all gene fingerprints, could be related to higher levels of soil acidity and higher amounts of MBC and of phosphatase activity. In contrast, the BCSs from cultivated areas were related to higher levels of Ca + Mg, P and K, likely as a result of a history of chemical fertilisation in these areas. The relationships between rpoB and Pseudomonas BCSs and all chemical and biochemical properties of soils were significant, according to a Mantel test (P < 0.05), indicating that the different changes in soil properties induced by soil use or management may drive the formation of the soil BCS.
650 $aBactéria
650 $aCerrado
650 $aPlantio
650 $aSolo
650 $aUso da Terra
700 1 $aCHAER, G. M.
700 1 $aFRANCO, N.
700 1 $aREIS JUNIOR, F. B. dos
700 1 $aMENDES, I. de C.
700 1 $aROSADO, A. S.
773 $tAntonie van Leeuwenhoek$gv. 98, n. 3, p. 403-413, 2010.
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Registro original: |
Embrapa Cerrados (CPAC) |
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| 2. |  | FILIPPINI ALBA, J. M.; SOUZA FILHO, C. R. de. GIS-based environmental risk assessment in the Ribeira Valley, São Paulo, Brazil. Environmental Earth Sciences, v. 59, n. 5, p. 1139-1147, jan, 2010,| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 5. | | LUIZ, A. J. B.; MAIA, A. de H. N.; SANCHES, I. D. A.; GÜRTLER, S.; SOUZA FILHO, C. R. de. Busca de relações quando o número de variáveis é muito maior que o de observações: o caso de dados hiperespectrais. In: REUNIÃO ANUAL DA REGIÃO BRASILEIRA DA SOCIEDADE INTERNACIONAL DE BIOMETRIA, 60.; SIMPÓSIO DE ESTATÍSTICA APLICADA À EXPERIMENTAÇÃO AGRONÔMICA, 16., 2015, Presidente Prudente. A estatística e os novos desafios: tratamento e modelagem da informação: anais... Presidente Prudente: Sociedade Internacional de Biometria, 2015. 10 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 7. | | VASQUES, G. M.; DEMATTÊ, J. A. M.; VISCARRA ROSSEL, R. A.; RAMÍREZ LÓPEZ, S.; TERRA, F. S.; RIZZO, R.; SOUZA FILHO, C. R. de. Integrating geospatial and multi-depth laboratory spectral data for mapping soil classes in a geologically complex area in southeastern Brazil. European Journal of Soil Science, v. 66, n. 4, p. 767-779, Jul. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Solos. |
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| 8. | | FRANCESCHINI, M. H. D.; DEMATTÊ, J. A. M.; TERRA, F. DA S.; ARAÚJO, S. R.; SOUZA FILHO, C. R. DE; VICENTE, L. E. Qualificação de atributos físico-químicos do solo através de dados espectrais (Vis-NIR-SWIR) obtidos em laboratório e por imagem aérea hiperespectral. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 16., 2013, Foz do Iguaçú. Anais... São José dos Campos: INPE, 2013. p.0530-0538 1 CD-ROM| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Territorial. |
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| 9. | | OLIVEIRA, D. P. de; PULIDO, J.; FRANCHESCHINI, M. H. D.; COSTA, P. A. da; ARRUDA, G. P. de; DEMATTÊ, J. A. M.; SOUZA FILHO, C. R. de; VICENTE, L. E. Caracterização espectral de solos utilizando espectrorradiômetro em laboratório e imagem de satélite hiperespectral. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 15., 2011, Curitiba. Anais... São José dos Campos: INPE, 2011. p. 8476-8483.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Territorial. |
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| Registros recuperados : 9 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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