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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
21/07/1999 |
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Data da última atualização: |
14/07/2017 |
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Autoria: |
FRANCO, A. |
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Título: |
Caracteristicas do latifundio e condicoes associadas com a sua existencia no sul do Brasil |
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Ano de publicação: |
1965 |
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Fonte/Imprenta: |
Rio de Janeiro: IICA-CIRA, 1965 |
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Páginas: |
131p. |
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Série: |
IICA-CIRA. Materiais de ensino para reforma agraria, 3 |
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Idioma: |
Português |
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Conteúdo: |
O problema; Metodologia; A natureza do latifundio nas areas de amostragens; O latifundio e as condicoes ecologicas; O latifundio e o investimento de capital; O latifundio e o preco dos produtos e dos fatores; O latifundio e as condicoes institucionais; Implicacoes para os programas de reforma agraria. |
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Palavras-Chave: |
Brasil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00739nam a2200145 a 4500
001 1642578
005 2017-07-14
008 1965 bl uuuu 00u1 u #d
100 1 $aFRANCO, A.
245 $aCaracteristicas do latifundio e condicoes associadas com a sua existencia no sul do Brasil
260 $aRio de Janeiro: IICA-CIRA$c1965
300 $a131p.
490 $aIICA-CIRA. Materiais de ensino para reforma agraria, 3
520 $aO problema; Metodologia; A natureza do latifundio nas areas de amostragens; O latifundio e as condicoes ecologicas; O latifundio e o investimento de capital; O latifundio e o preco dos produtos e dos fatores; O latifundio e as condicoes institucionais; Implicacoes para os programas de reforma agraria.
653 $aBrasil
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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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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