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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: |
25/10/2021 |
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Data da última atualização: |
25/10/2021 |
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Tipo da produção científica: |
Orientação de Tese de Pós-Graduação |
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Autoria: |
COTRIM, C. de S. A. |
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Afiliação: |
CECÍLIA DE SOUZA ANTONIO COTRIM, UFRRJ. |
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Título: |
Estudos de fontes orgânicas de nitrogênio no crescimento e atividade da nitrogenase de cinco estirpes de bactérias diazotróficas associadas à cana de açúcar. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
2020 |
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Idioma: |
Português |
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Notas: |
Tese. (Doutorado em Agronomia, Ciência do Solo) - Universidade Federal Rural do Rio de Janeiro, Seropédica, 2020. Sob a Orientação da Professora Veronica Massena Reis |
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Conteúdo: |
A interação entre hospedeiro e bactéria pode ser afetada por diversos fatores, como genótipo da planta, espécie, e nicho do qual o micro-organismo foi originado. Bactérias fixadoras de nitrogênio isoladas de cana de açúcar podem ser utilizadas como inoculante, promovendo crescimento da planta, além de atuar no processo biológico de fixar N2 atmosférico. Tanto a síntese como a manutenção da atividade da enzima nitrogenase podem ser afetadas pela presença de nitrogênio, tanto na forma de íons amônio e nitrato como na forma de aminoácidos. Os objetivos deste estudo foram de avaliar o crescimento bacteriano e a atividade da nitrogenase de cinco estirpes/espécies de bactérias fixadoras de N na presença de diferentes fontes de nitrogênio orgânico. As estirpes estudadas foram: Gluconacetobacterdiazotrophicus BR11281, Herbaspirillum seropedicae BR11335, H. rubrisubalbicans BR11504, Paraburkholderia tropica BR11366 e Nitrospirillum amazonense BR11145. |
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Palavras-Chave: |
Exudatos radiculares; Fixação Biológica de Nitrogênio. |
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Thesagro: |
Aminoácido. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 01691nam a2200157 a 4500
001 2135542
005 2021-10-25
008 2020 bl uuuu m 00u1 u #d
100 1 $aCOTRIM, C. de S. A.
245 $aEstudos de fontes orgânicas de nitrogênio no crescimento e atividade da nitrogenase de cinco estirpes de bactérias diazotróficas associadas à cana de açúcar.$h[electronic resource]
260 $a2020$c2020
500 $aTese. (Doutorado em Agronomia, Ciência do Solo) - Universidade Federal Rural do Rio de Janeiro, Seropédica, 2020. Sob a Orientação da Professora Veronica Massena Reis
520 $aA interação entre hospedeiro e bactéria pode ser afetada por diversos fatores, como genótipo da planta, espécie, e nicho do qual o micro-organismo foi originado. Bactérias fixadoras de nitrogênio isoladas de cana de açúcar podem ser utilizadas como inoculante, promovendo crescimento da planta, além de atuar no processo biológico de fixar N2 atmosférico. Tanto a síntese como a manutenção da atividade da enzima nitrogenase podem ser afetadas pela presença de nitrogênio, tanto na forma de íons amônio e nitrato como na forma de aminoácidos. Os objetivos deste estudo foram de avaliar o crescimento bacteriano e a atividade da nitrogenase de cinco estirpes/espécies de bactérias fixadoras de N na presença de diferentes fontes de nitrogênio orgânico. As estirpes estudadas foram: Gluconacetobacterdiazotrophicus BR11281, Herbaspirillum seropedicae BR11335, H. rubrisubalbicans BR11504, Paraburkholderia tropica BR11366 e Nitrospirillum amazonense BR11145.
650 $aAminoácido
653 $aExudatos radiculares
653 $aFixação Biológica de Nitrogênio
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/02/2019 |
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Data da última atualização: |
15/02/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
KAVAMURA, V. N.; HAYAT, R.; CLARK, I. M.; ROSSMANN, M.; MENDES, R.; HIRSCH, P. R.; MAUCHLINE, T. H. |
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Afiliação: |
VANESSA NESSNER KAVAMURA, Rothamsted Research; RIFAT HAYAT, PMAS Arid Agriculture University; IAN MICHAEL CLARK, Rothamsted Research; MAIKE ROSSMANN, FAPESP; RODRIGO MENDES, CNPMA; PENNY R HIRSCH, Rothamsted Research; TIM H MAUCHLINE, Rothamsted Research. |
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Título: |
Inorganic nitrogen application affects both taxonomical and predicted functional structure of wheat rhizosphere bacterial communities. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Frontiers in Microbiology, Lausanne, v. 9, 2018. Article 1074. |
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Páginas: |
15 p. |
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ISSN: |
1664-302X |
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DOI: |
https://doi.org/10.3389/fmicb.2018.01074 |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of fertilizer regime on bulk soil microbial communities have been well studied, but this is not the case for the rhizosphere microbiome. The aim of this work was to assess the impact of fertilization regime on wheat rhizosphere microbiome assembly and 16S rRNA gene-predicted functions with soil from the long term Broadbalk experiment at Rothamsted Research. Soil from four N fertilization regimes (organic N, zero N, medium inorganic N and high inorganic N) was sown with seeds of Triticum aestivum cv. Cadenza. 16S rRNA gene amplicon sequencing was performed with the Illumina platform on bulk soil and rhizosphere samples of 4-week-old and flowering plants (10 weeks). Phylogenetic and 16S rRNA gene-predicted functional analyses were performed. Fertilization regime affected the structure and composition of wheat rhizosphere bacterial communities. Acidobacteria and Planctomycetes were significantly depleted in treatments receiving inorganic N, whereas the addition of high levels of inorganic N enriched members of the phylum Bacteroidetes, especially after 10 weeks. Bacterial richness and diversity decreased with inorganic nitrogen inputs and was highest after organic treatment (FYM). In general, high levels of inorganic nitrogen fertilizers negatively affect bacterial richness and diversity, leading to a less stable bacterial community structure over time, whereas, more stable bacterial communities are provided by organic amendments. 16S rRNA gene-predicted functional structure was more affected by growth stage than by fertilizer treatment, although, some functions related to energy metabolism and metabolism of terpenoids and polyketides were enriched in samples not receiving any inorganic N, whereas inorganic N addition enriched predicted functions related to metabolism of other amino acids and carbohydrates. Understanding the impact of different fertilizers on the structure and dynamics of the rhizosphere microbiome is an important step toward developing strategies for production of crops in a sustainable way. MenosThe effects of fertilizer regime on bulk soil microbial communities have been well studied, but this is not the case for the rhizosphere microbiome. The aim of this work was to assess the impact of fertilization regime on wheat rhizosphere microbiome assembly and 16S rRNA gene-predicted functions with soil from the long term Broadbalk experiment at Rothamsted Research. Soil from four N fertilization regimes (organic N, zero N, medium inorganic N and high inorganic N) was sown with seeds of Triticum aestivum cv. Cadenza. 16S rRNA gene amplicon sequencing was performed with the Illumina platform on bulk soil and rhizosphere samples of 4-week-old and flowering plants (10 weeks). Phylogenetic and 16S rRNA gene-predicted functional analyses were performed. Fertilization regime affected the structure and composition of wheat rhizosphere bacterial communities. Acidobacteria and Planctomycetes were significantly depleted in treatments receiving inorganic N, whereas the addition of high levels of inorganic N enriched members of the phylum Bacteroidetes, especially after 10 weeks. Bacterial richness and diversity decreased with inorganic nitrogen inputs and was highest after organic treatment (FYM). In general, high levels of inorganic nitrogen fertilizers negatively affect bacterial richness and diversity, leading to a less stable bacterial community structure over time, whereas, more stable bacterial communities are provided by organic amendments. 16S rRNA gene-predicted functional ... Mostrar Tudo |
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Palavras-Chave: |
Nitrogênio inorgânico. |
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Thesagro: |
Fertilizante nitrogenado; Impacto ambiental; Rizosfera; Trigo. |
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Thesaurus NAL: |
Bacterial communities; Environmental impact; Functional diversity; Microbiome; Nitrogen fertilizers; Rhizosphere; Sustainable agricultural intensification; Wheat. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1105404/1/2018AP49.pdf
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Marc: |
LEADER 03228naa a2200385 a 4500
001 2105404
005 2019-02-15
008 2018 bl uuuu u00u1 u #d
022 $a1664-302X
024 7 $ahttps://doi.org/10.3389/fmicb.2018.01074$2DOI
100 1 $aKAVAMURA, V. N.
245 $aInorganic nitrogen application affects both taxonomical and predicted functional structure of wheat rhizosphere bacterial communities.$h[electronic resource]
260 $c2018
300 $a15 p.
520 $aThe effects of fertilizer regime on bulk soil microbial communities have been well studied, but this is not the case for the rhizosphere microbiome. The aim of this work was to assess the impact of fertilization regime on wheat rhizosphere microbiome assembly and 16S rRNA gene-predicted functions with soil from the long term Broadbalk experiment at Rothamsted Research. Soil from four N fertilization regimes (organic N, zero N, medium inorganic N and high inorganic N) was sown with seeds of Triticum aestivum cv. Cadenza. 16S rRNA gene amplicon sequencing was performed with the Illumina platform on bulk soil and rhizosphere samples of 4-week-old and flowering plants (10 weeks). Phylogenetic and 16S rRNA gene-predicted functional analyses were performed. Fertilization regime affected the structure and composition of wheat rhizosphere bacterial communities. Acidobacteria and Planctomycetes were significantly depleted in treatments receiving inorganic N, whereas the addition of high levels of inorganic N enriched members of the phylum Bacteroidetes, especially after 10 weeks. Bacterial richness and diversity decreased with inorganic nitrogen inputs and was highest after organic treatment (FYM). In general, high levels of inorganic nitrogen fertilizers negatively affect bacterial richness and diversity, leading to a less stable bacterial community structure over time, whereas, more stable bacterial communities are provided by organic amendments. 16S rRNA gene-predicted functional structure was more affected by growth stage than by fertilizer treatment, although, some functions related to energy metabolism and metabolism of terpenoids and polyketides were enriched in samples not receiving any inorganic N, whereas inorganic N addition enriched predicted functions related to metabolism of other amino acids and carbohydrates. Understanding the impact of different fertilizers on the structure and dynamics of the rhizosphere microbiome is an important step toward developing strategies for production of crops in a sustainable way.
650 $aBacterial communities
650 $aEnvironmental impact
650 $aFunctional diversity
650 $aMicrobiome
650 $aNitrogen fertilizers
650 $aRhizosphere
650 $aSustainable agricultural intensification
650 $aWheat
650 $aFertilizante nitrogenado
650 $aImpacto ambiental
650 $aRizosfera
650 $aTrigo
653 $aNitrogênio inorgânico
700 1 $aHAYAT, R.
700 1 $aCLARK, I. M.
700 1 $aROSSMANN, M.
700 1 $aMENDES, R.
700 1 $aHIRSCH, P. R.
700 1 $aMAUCHLINE, T. H.
773 $tFrontiers in Microbiology, Lausanne$gv. 9, 2018. Article 1074.
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