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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
19/03/2012 |
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Data da última atualização: |
06/02/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALVES, J. B.; SÁ, E. L. S. de; MUNIZ, A. W. |
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Afiliação: |
Jonatas Bredow Alves, PPG Universidade Federal do Rio Grande do Sul; Enilson Luiz Saccol de Sá, PPG Universidade Federal do Rio Grande do Sul; ALEKSANDER WESTPHAL MUNIZ, CPAA. |
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Título: |
Seleção de rizóbios para o Trifolium repens em condições de solo alagado. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Biotemas, v. 25, n. 1, p. 39-45, mar. 2012. |
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ISSN: |
2175-7925 |
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DOI: |
10.5007/2175-7925.2012v25n1p39 |
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Idioma: |
Português |
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Conteúdo: |
O estado do Rio Grande do Sul possui cerca de 5,4 milhões de hectares várzeas. A implantação de leguminosas forrageiras de inverno como trevo branco é uma ótima alternativa para aumentar a produtividade destas áreas por meio da fixação biológica de nitrogênio (FBN). Esse benefício pode ser obtido com associação da leguminosa a estirpes de rizóbio que fixem o nitrogênio de forma eficiente nessas condições. O objetivo do trabalho foi selecionar rizóbios eficientes na FBN para trevo branco, e avaliar a tolerância dessa simbiose em condições de alagamento do solo. |
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Palavras-Chave: |
Estresse hídrico; Fixação biológica de nitrogênio. |
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Thesagro: |
Rhizobium; Trevo Branco. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172189/1/Biotemas-Aleksander.pdf
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Marc: |
LEADER 01213naa a2200217 a 4500
001 1919416
005 2018-02-06
008 2012 bl uuuu u00u1 u #d
022 $a2175-7925
024 7 $a10.5007/2175-7925.2012v25n1p39$2DOI
100 1 $aALVES, J. B.
245 $aSeleção de rizóbios para o Trifolium repens em condições de solo alagado.
260 $c2012
520 $aO estado do Rio Grande do Sul possui cerca de 5,4 milhões de hectares várzeas. A implantação de leguminosas forrageiras de inverno como trevo branco é uma ótima alternativa para aumentar a produtividade destas áreas por meio da fixação biológica de nitrogênio (FBN). Esse benefício pode ser obtido com associação da leguminosa a estirpes de rizóbio que fixem o nitrogênio de forma eficiente nessas condições. O objetivo do trabalho foi selecionar rizóbios eficientes na FBN para trevo branco, e avaliar a tolerância dessa simbiose em condições de alagamento do solo.
650 $aRhizobium
650 $aTrevo Branco
653 $aEstresse hídrico
653 $aFixação biológica de nitrogênio
700 1 $aSÁ, E. L. S. de
700 1 $aMUNIZ, A. W.
773 $tBiotemas$gv. 25, n. 1, p. 39-45, mar. 2012.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
12/03/2012 |
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Data da última atualização: |
03/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
PEREZ, D. V.; PERRINEAU, M. M.; LE ROUX, C.; FARIA, S. M. de; BALIEIRO, F. de C.; GALIANA, A.; PRIN, Y.; BÉNA, G. |
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Afiliação: |
DANIEL VIDAL PEREZ, CNPS; FABIANO DE CARVALHO BALIEIRO, CNPS. |
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Título: |
Genetic diversity of symbiotic Bradyrhizobium Elkanii populations recovered from inoculated and non-inoculated Acacia Mangium field trials in Brazil. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Systematic and Applied Microbiology, v. 34, n. 5, p. 376-384, Jul. 2011. |
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DOI: |
https://doi.org/10.1016/j.syapm.2011.03.003 |
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Idioma: |
Inglês |
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Conteúdo: |
Acacia mangium is a legume tree native to Australasia. Since the eighties, it has been introduced into many tropical countries, especially in a context of industrial plantations. Many field trials have been set up to test the effects of controlled inoculation with selected symbiotic bacteria versus natural colonization with indigenous strains. In the introduction areas, A. mangium trees spontaneously nodulate with local and often ineffective bacteria. When inoculated, the persistence of inoculants and possible genetic recombination with local strains remain to be explored. The aim of this study was to describe the genetic diversity of bacteria spontaneously nodulating A. mangium in Brazil and to evaluate the persistence of selected strains used as inoculants. Three different sites, several hundred kilometers apart, were studied, with inoculated and non-inoculated plots in two of them. Seventy-nine strains were isolated from nodules and sequenced on three housekeeping genes (glnII, dnaK and recA) and one symbiotic gene (nodA). All but one of the strains belonged to the Bradyrhizobium elkanii species. A single case of housekeeping gene transfer was detected among the 79 strains, suggesting an extremely low rate of recombination within B. elkanii, whereas the nodulation gene nodA was found to be frequently transferred. The fate of the inoculant strains varied depending on the site, with a complete disappearance in one case, and persistence in another. We compared our results with the sister species Bradyrhizobium japonicum, both in terms of population genetics and inoculant strain destiny. MenosAcacia mangium is a legume tree native to Australasia. Since the eighties, it has been introduced into many tropical countries, especially in a context of industrial plantations. Many field trials have been set up to test the effects of controlled inoculation with selected symbiotic bacteria versus natural colonization with indigenous strains. In the introduction areas, A. mangium trees spontaneously nodulate with local and often ineffective bacteria. When inoculated, the persistence of inoculants and possible genetic recombination with local strains remain to be explored. The aim of this study was to describe the genetic diversity of bacteria spontaneously nodulating A. mangium in Brazil and to evaluate the persistence of selected strains used as inoculants. Three different sites, several hundred kilometers apart, were studied, with inoculated and non-inoculated plots in two of them. Seventy-nine strains were isolated from nodules and sequenced on three housekeeping genes (glnII, dnaK and recA) and one symbiotic gene (nodA). All but one of the strains belonged to the Bradyrhizobium elkanii species. A single case of housekeeping gene transfer was detected among the 79 strains, suggesting an extremely low rate of recombination within B. elkanii, whereas the nodulation gene nodA was found to be frequently transferred. The fate of the inoculant strains varied depending on the site, with a complete disappearance in one case, and persistence in another. We compared our results wi... Mostrar Tudo |
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Palavras-Chave: |
Controlled inoculation; Recombination. |
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Thesaurus NAL: |
Acacia mangium; Bradyrhizobium elkanii; molecular systematics; nitrogen fixation. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02563naa a2200289 a 4500
001 1918320
005 2021-11-03
008 2011 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.syapm.2011.03.003$2DOI
100 1 $aPEREZ, D. V.
245 $aGenetic diversity of symbiotic Bradyrhizobium Elkanii populations recovered from inoculated and non-inoculated Acacia Mangium field trials in Brazil.$h[electronic resource]
260 $c2011
520 $aAcacia mangium is a legume tree native to Australasia. Since the eighties, it has been introduced into many tropical countries, especially in a context of industrial plantations. Many field trials have been set up to test the effects of controlled inoculation with selected symbiotic bacteria versus natural colonization with indigenous strains. In the introduction areas, A. mangium trees spontaneously nodulate with local and often ineffective bacteria. When inoculated, the persistence of inoculants and possible genetic recombination with local strains remain to be explored. The aim of this study was to describe the genetic diversity of bacteria spontaneously nodulating A. mangium in Brazil and to evaluate the persistence of selected strains used as inoculants. Three different sites, several hundred kilometers apart, were studied, with inoculated and non-inoculated plots in two of them. Seventy-nine strains were isolated from nodules and sequenced on three housekeeping genes (glnII, dnaK and recA) and one symbiotic gene (nodA). All but one of the strains belonged to the Bradyrhizobium elkanii species. A single case of housekeeping gene transfer was detected among the 79 strains, suggesting an extremely low rate of recombination within B. elkanii, whereas the nodulation gene nodA was found to be frequently transferred. The fate of the inoculant strains varied depending on the site, with a complete disappearance in one case, and persistence in another. We compared our results with the sister species Bradyrhizobium japonicum, both in terms of population genetics and inoculant strain destiny.
650 $aAcacia mangium
650 $aBradyrhizobium elkanii
650 $amolecular systematics
650 $anitrogen fixation
653 $aControlled inoculation
653 $aRecombination
700 1 $aPERRINEAU, M. M.
700 1 $aLE ROUX, C.
700 1 $aFARIA, S. M. de
700 1 $aBALIEIRO, F. de C.
700 1 $aGALIANA, A.
700 1 $aPRIN, Y.
700 1 $aBÉNA, G.
773 $tSystematic and Applied Microbiology$gv. 34, n. 5, p. 376-384, Jul. 2011.
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