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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. |
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Data corrente: |
05/11/2013 |
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Data da última atualização: |
02/03/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RACHID, C. T. C. C.; BALIEIRO, F. de C.; PEIXOTO, R. S.; PINHEIRO, Y, A. S.; PICOLLO, M. C.; CHAER, G. M. |
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Afiliação: |
FABIANO DE CARVALHO BALIEIRO, CNPS; GUILHERME MONTANDON CHAER, CNPAB. |
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Título: |
Mixed plantations can promote microbial integration and soil nitrate increases with changes in the N cycling genes. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Soil Biology & Biochemistry, v. 66, p. 146-153, 2013. |
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Idioma: |
Português |
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Conteúdo: |
Mixed-species plantations of Eucalyptus and legume trees can symbiotically fix nitrogen and potentially improve the soil quality and biomass productivity compared with a conventional Eucalyptus monoculture. In this study, we evaluated changes in the structure and abundance of different microbial groups and nitrogen cycle genes in mixed and pure plantations of Acacia mangium and Eucalyptus urograndis in an experimental area in southeastern Brazil. Soil samples (0e10 cm) collected in two- and three-year-old stands were submitted to chemical characterization and molecular analyses using DGGE and real time- PCR for bacteria (16S rRNA), fungi (ITS), and genes involved in nitrogen cycling (nirK, amoA, nifH). The mixed plantation did not significantly change general soil fertility or total soil C and N content compared with the Eucalyptus monoculture. However, there was a significant increase in available phosphorus and soil nitrate content in both the A. mangium and mixed-species treatments. The multivariate ordination of the DGGE profiles of bacteria, fungi and archaea groups showed distinct community structures in each treatment. Significant differences in the abundance of copies of the target genes were found for fungi, with higher values in the Eucalyptus followed by the mixed and A. mangium plantations. The analysis of nitrogen cycle genes showed no clear difference in the communities of nitrogen fixing bacteria or nitrifying archaea among treatments. The nitrification activity was dominated by archaea because it was not possible to detect the presence of bacterial nitrifiers; the denitrifier community had a distinct profile in the Eucalyptus monoculture. The abundance of archaeal amoA and nirK genes suggests that the A. mangium treatment had higher nitrification and lower denitrification than the other treatments, which would explain the higher soil nitrate levels found in pure A. mangium treatments. Our data suggest that mixed plantations of E. urograndis and A. mangium result in a distinct microbial community relative to the respective monocultures with positive effects on soil phosphorus and nitrate content, which potentially reduces the need for anthropogenic fertilization. MenosMixed-species plantations of Eucalyptus and legume trees can symbiotically fix nitrogen and potentially improve the soil quality and biomass productivity compared with a conventional Eucalyptus monoculture. In this study, we evaluated changes in the structure and abundance of different microbial groups and nitrogen cycle genes in mixed and pure plantations of Acacia mangium and Eucalyptus urograndis in an experimental area in southeastern Brazil. Soil samples (0e10 cm) collected in two- and three-year-old stands were submitted to chemical characterization and molecular analyses using DGGE and real time- PCR for bacteria (16S rRNA), fungi (ITS), and genes involved in nitrogen cycling (nirK, amoA, nifH). The mixed plantation did not significantly change general soil fertility or total soil C and N content compared with the Eucalyptus monoculture. However, there was a significant increase in available phosphorus and soil nitrate content in both the A. mangium and mixed-species treatments. The multivariate ordination of the DGGE profiles of bacteria, fungi and archaea groups showed distinct community structures in each treatment. Significant differences in the abundance of copies of the target genes were found for fungi, with higher values in the Eucalyptus followed by the mixed and A. mangium plantations. The analysis of nitrogen cycle genes showed no clear difference in the communities of nitrogen fixing bacteria or nitrifying archaea among treatments. The nitrification activi... Mostrar Tudo |
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Palavras-Chave: |
Forest microbiology; Microbial diversity; Mixed plantation; N cycling genes. |
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Thesaurus Nal: |
Acacia mangium; Eucalyptus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02970naa a2200253 a 4500
001 1970359
005 2015-03-02
008 2013 bl uuuu u00u1 u #d
100 1 $aRACHID, C. T. C. C.
245 $aMixed plantations can promote microbial integration and soil nitrate increases with changes in the N cycling genes.
260 $c2013
520 $aMixed-species plantations of Eucalyptus and legume trees can symbiotically fix nitrogen and potentially improve the soil quality and biomass productivity compared with a conventional Eucalyptus monoculture. In this study, we evaluated changes in the structure and abundance of different microbial groups and nitrogen cycle genes in mixed and pure plantations of Acacia mangium and Eucalyptus urograndis in an experimental area in southeastern Brazil. Soil samples (0e10 cm) collected in two- and three-year-old stands were submitted to chemical characterization and molecular analyses using DGGE and real time- PCR for bacteria (16S rRNA), fungi (ITS), and genes involved in nitrogen cycling (nirK, amoA, nifH). The mixed plantation did not significantly change general soil fertility or total soil C and N content compared with the Eucalyptus monoculture. However, there was a significant increase in available phosphorus and soil nitrate content in both the A. mangium and mixed-species treatments. The multivariate ordination of the DGGE profiles of bacteria, fungi and archaea groups showed distinct community structures in each treatment. Significant differences in the abundance of copies of the target genes were found for fungi, with higher values in the Eucalyptus followed by the mixed and A. mangium plantations. The analysis of nitrogen cycle genes showed no clear difference in the communities of nitrogen fixing bacteria or nitrifying archaea among treatments. The nitrification activity was dominated by archaea because it was not possible to detect the presence of bacterial nitrifiers; the denitrifier community had a distinct profile in the Eucalyptus monoculture. The abundance of archaeal amoA and nirK genes suggests that the A. mangium treatment had higher nitrification and lower denitrification than the other treatments, which would explain the higher soil nitrate levels found in pure A. mangium treatments. Our data suggest that mixed plantations of E. urograndis and A. mangium result in a distinct microbial community relative to the respective monocultures with positive effects on soil phosphorus and nitrate content, which potentially reduces the need for anthropogenic fertilization.
650 $aAcacia mangium
650 $aEucalyptus
653 $aForest microbiology
653 $aMicrobial diversity
653 $aMixed plantation
653 $aN cycling genes
700 1 $aBALIEIRO, F. de C.
700 1 $aPEIXOTO, R. S.
700 1 $aPINHEIRO, Y, A. S.
700 1 $aPICOLLO, M. C.
700 1 $aCHAER, G. M.
773 $tSoil Biology & Biochemistry$gv. 66, p. 146-153, 2013.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 17 | |
| 1. |  | TEIXEIRA, L. L.; MATTOS, P. P. de; BOTOSSO, P. C. Anatomia da madeira de três espécies de Melastomataceae, nativas da Mata Atlântica. In: CONGRESSO NACIONAL DE BOTÂNICA, 55.; REUNIÃO REGIONAL DE BOTÂNICOS DE MG, BA E ES, 26., 2004, Viçosa. Conservação, bioprospecção e biotecnologia:[resumos]. Viçosa: Sociedade Botânica do Brasil: Universidade Federal Viçosa, 2004. CD ROM. Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 4. | | TEIXEIRA, L. L.; MATTOS, P. P. de; BOTOSSO, P. C. Características anatômicas de Cupania oblongifolia e Dodonea viscosa (Sapindaceae). In: CONGRESSO NACIONAL DE BOTÂNICA, 54.; REUNIÃO AMAZÔNICA DE BOTÂNICA, 3., 2003, Belém, PA. Botânica: desafios da botânica no novo milênio: inventário, sistematização e conservação da diversidade vegetal: resumos. Belém, PA: Sociedade Botânica do Brasil: Universidade Federal Rural da Amazônia: Museu Emílio Goeldi: Embrapa Amazônia Oriental, 2003. 1 CD-ROM. Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 5. | | MATTOS, P. P. de; TEIXEIRA, L. L.; SEITZ, R. A.; SALIS, S. M.; BOTOSSO, P. C. Anatomy of Pantanal Mato-Grossense woods (microscopic features). In: WORLD FORESTRY CONGRESS, 12., 2003, Québec. Forests, Source of Life. Québec: FAO, 2003. Poster.| Biblioteca(s): Embrapa Florestas. |
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| 12. | | BOTOSSO, P. C.; MATTOS, P. P. de; FRANKLIN, G.; VELLOZO, R. C.; KUNIYOSHI, Y. S.; TEIXEIRA, L. L. Anatomical features of growth rings in trees of the Atlantic rain forest in Parana State, Brazil. In: INTERNATIONAL SYMPOSIUM ON WOOD SCIENCES, 2004, Montpellier. Proceedings. [S.l]: IAWA, 2004. p. 6 Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 13. | | BOTOSSO, P. C.; MATTOS, P. P. de; GALVÃO, F.; RODERJAN, C. V.; KUNIYOSHI, Y. S.; TEIXEIRA, L. L. Características anatômicas dos anéis de crescimento de espécies arbóreas da Floresta Ombrófila Densa, no estado do Paraná. In: CONGRESSO NACIONAL DE BOTÂNICA, 55.; REUNIÃO REGIONAL DE BOTÂNICOS DE MG, BA E ES, 26., 2004, Viçosa. Conservação, bioprospecção e biotecnologia:[resumos]. Viçosa: Sociedade Botânica do Brasil: Universidade Federal Viçosa, 2004. CD ROM. Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 15. | | MATTOS, P. P. de; PEREIRA, J. C. D.; SCHAITZA, E. G.; TEIXEIRA, L. L.; FERRON, R. M. Physical, chemical and anatomical characteristics of the wood of Ateleia glazioveana. In: REUNION SOBRE INVESTIGACION Y DESARROLLO DE PRODUCTOS FORESTALES, 9.; CONGRESSO IBEROAMERICANO DE INVESTIGACION Y DESARROLLO DE PRODUCTOS FORESTALES, 1., 2000, Concepcion. Libro de resumenes. Concepcion: Universidad del Bio-Bio / Universidade de Concepcion, 2000. p.58. Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 16. | | BOTOSSO, P. C.; GALVÃO, F.; KUNIYOSHI, Y. S.; RODERJAN, C. V.; MATTOS, P. P. de; TEIXEIRA, L. L. Tendências de adaptação ecológica na anatomia da madeira de algumas espécies arbóreas das Florestas Ombrófilas Densa e Mista do Estado do Paraná. In: CONGRESSO NACIONAL DE BOTÂNICA, 56., 2005, Curitiba. Resumos. [S.l.]: Sociedade Botânica do Brasil, 2005. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Florestas. |
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| 17. | | NUNES, J. de A.; TEIXEIRA, L. L.; NASCIMENTO, W. M. O. do; LOPES, D. C. F.; SILVA, J. K. R. da; PINTO, L. C.; SANTOS, P. V. L.; FIGUEIREDO, P. F. B. Seasonal variation on chemical composition and in vitro cytotoxic and anti-inflammatory activities of Myrciaria dubia (Kunth) McVaugh essential oil from Amazon. Biochemical Systematics and Ecology, v. 121, 105001, Aug. 2025.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 17 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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