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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
24/07/2007 |
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Data da última atualização: |
25/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BARCELLOS, F. G.; MENNA, P.; BATISTA, J. S. da S.; HUNGRIA, M. |
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Afiliação: |
FERNANDO GOMES BARCELLOS; PÂMELA MENNA, UEL; JESIANE STEFÂNIA DA SILVA BATISTA†, UEL; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
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Título: |
Evidence of horizontal transfer of symbiotic genes from a Bradyrhizobium japonicum inoculant strain to indigenous diazotrophs Sinorhizobium (Ensifer) fredii and Bradyrhizobium elkanii in a brazilian savannah soil. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Applied and Environmental Microbiology, v. 73, n. 8, p. 2635-2643, Apr. 2007. |
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DOI: |
10.1128/AEM.01823-06 |
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Idioma: |
Inglês |
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Conteúdo: |
The importance of horizontal gene transfer (HGT) in the evolution and speciation of bacteria has been emphasized; however, most studies have focused on genes clustered in pathogenesis and very few on symbiosis islands. Both soybean (Glycine max [L.] Merrill) and compatible Bradyrhizobium japonicum and Bradyrhizobium elkanii strains are exotic to Brazil and have been massively introduced in the country since the early 1960s, occupying today about 45% of the cropped land. For the past 10 years, our group has obtained several isolates showing high diversity in morphological, physiological, genetic, and symbiotic properties in relation to the putative parental inoculant strains. In this study, parental strains and putative natural variants isolated from field-grown soybean nodules were genetically characterized in relation to conserved genes (by repetitive extragenic palindromic PCR using REP and BOX A1R primers, PCR-restriction fragment length polymorphism, and sequencing of the 16SrRNA genes), nodulation, and N2-fixation genes (PCR-RFLP and sequencing of nodY-nodA, nodC, and nifH genes). Both genetic variability due to adaptation to the stressful environmental conditions of the Brazilian Cerrados and HGT events were confirmed. One strain (S 127) was identified as an indigenous B. elkanii strain that acquired a nodC gene from the inoculant B. japonicum. Another one (CPAC 402) was identified as an indigenous Sinorhizobium (Ensifer) fredii strain that received the whole symbiotic island from the B. japonicum inoculant strain and maintained an extra copy of the original nifH gene. The results highlight the strategies that bacteria may commonly use to obtain ecological advantages, such as the acquisition of genes to establish effective symbioses with an exotic host legume. MenosThe importance of horizontal gene transfer (HGT) in the evolution and speciation of bacteria has been emphasized; however, most studies have focused on genes clustered in pathogenesis and very few on symbiosis islands. Both soybean (Glycine max [L.] Merrill) and compatible Bradyrhizobium japonicum and Bradyrhizobium elkanii strains are exotic to Brazil and have been massively introduced in the country since the early 1960s, occupying today about 45% of the cropped land. For the past 10 years, our group has obtained several isolates showing high diversity in morphological, physiological, genetic, and symbiotic properties in relation to the putative parental inoculant strains. In this study, parental strains and putative natural variants isolated from field-grown soybean nodules were genetically characterized in relation to conserved genes (by repetitive extragenic palindromic PCR using REP and BOX A1R primers, PCR-restriction fragment length polymorphism, and sequencing of the 16SrRNA genes), nodulation, and N2-fixation genes (PCR-RFLP and sequencing of nodY-nodA, nodC, and nifH genes). Both genetic variability due to adaptation to the stressful environmental conditions of the Brazilian Cerrados and HGT events were confirmed. One strain (S 127) was identified as an indigenous B. elkanii strain that acquired a nodC gene from the inoculant B. japonicum. Another one (CPAC 402) was identified as an indigenous Sinorhizobium (Ensifer) fredii strain that received the whole symbiotic... Mostrar Tudo |
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Thesagro: |
Fixação de Nitrogênio; Soja. |
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Categoria do assunto: |
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Marc: |
LEADER 02508naa a2200193 a 4500
001 1470103
005 2017-07-25
008 2007 bl uuuu u00u1 u #d
024 7 $a10.1128/AEM.01823-06$2DOI
100 1 $aBARCELLOS, F. G.
245 $aEvidence of horizontal transfer of symbiotic genes from a Bradyrhizobium japonicum inoculant strain to indigenous diazotrophs Sinorhizobium (Ensifer) fredii and Bradyrhizobium elkanii in a brazilian savannah soil.
260 $c2007
520 $aThe importance of horizontal gene transfer (HGT) in the evolution and speciation of bacteria has been emphasized; however, most studies have focused on genes clustered in pathogenesis and very few on symbiosis islands. Both soybean (Glycine max [L.] Merrill) and compatible Bradyrhizobium japonicum and Bradyrhizobium elkanii strains are exotic to Brazil and have been massively introduced in the country since the early 1960s, occupying today about 45% of the cropped land. For the past 10 years, our group has obtained several isolates showing high diversity in morphological, physiological, genetic, and symbiotic properties in relation to the putative parental inoculant strains. In this study, parental strains and putative natural variants isolated from field-grown soybean nodules were genetically characterized in relation to conserved genes (by repetitive extragenic palindromic PCR using REP and BOX A1R primers, PCR-restriction fragment length polymorphism, and sequencing of the 16SrRNA genes), nodulation, and N2-fixation genes (PCR-RFLP and sequencing of nodY-nodA, nodC, and nifH genes). Both genetic variability due to adaptation to the stressful environmental conditions of the Brazilian Cerrados and HGT events were confirmed. One strain (S 127) was identified as an indigenous B. elkanii strain that acquired a nodC gene from the inoculant B. japonicum. Another one (CPAC 402) was identified as an indigenous Sinorhizobium (Ensifer) fredii strain that received the whole symbiotic island from the B. japonicum inoculant strain and maintained an extra copy of the original nifH gene. The results highlight the strategies that bacteria may commonly use to obtain ecological advantages, such as the acquisition of genes to establish effective symbioses with an exotic host legume.
650 $aFixação de Nitrogênio
650 $aSoja
700 1 $aMENNA, P.
700 1 $aBATISTA, J. S. da S.
700 1 $aHUNGRIA, M.
773 $tApplied and Environmental Microbiology$gv. 73, n. 8, p. 2635-2643, Apr. 2007.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
13/03/2017 |
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Data da última atualização: |
13/03/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CORREA, J. C.; RIGO, A. Z.; GROHSKOPF, M. A.; RAIZER, D.; CAETANO, J. O. |
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Afiliação: |
JULIANO CORULLI CORREA, CNPSA; AMANDA ZOLET RIGO, UDESC; MARCO ANDRÉ GROHSKOPF, UNESP/Botucatu; DAIANE RAIZER, FACC; JEANDER OLIVEIRA CAETANO, UNIRV. |
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Título: |
Fertilizantes organominerais com resíduos da suinocultura e produtividade de milho. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., 2016, Goiânia. Rumo aos novos desafios: [anais]. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2016. Fertbio 2016. |
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Idioma: |
Português |
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Palavras-Chave: |
Biodigestão; Fertilizantes organominerais. |
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Thesagro: |
Dejeto; Suíno. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/157579/1/final8284.pdf
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Marc: |
LEADER 00880nam a2200193 a 4500
001 2066911
005 2017-03-13
008 2016 bl uuuu u00u1 u #d
100 1 $aCORREA, J. C.
245 $aFertilizantes organominerais com resíduos da suinocultura e produtividade de milho.$h[electronic resource]
260 $aIn: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., 2016, Goiânia. Rumo aos novos desafios: [anais]. Viçosa, MG: Sociedade Brasileira de Ciência do Solo, 2016. Fertbio 2016.$c2016
650 $aDejeto
650 $aSuíno
653 $aBiodigestão
653 $aFertilizantes organominerais
700 1 $aRIGO, A. Z.
700 1 $aGROHSKOPF, M. A.
700 1 $aRAIZER, D.
700 1 $aCAETANO, J. O.
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