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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
21/12/2011 |
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Data da última atualização: |
17/04/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TORRES, A. R.; KASCHUK, G.; SARIDAKIS, G. P.; CUNHA, M. H. da. |
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Afiliação: |
ADALGISA RIBEIRO TORRES; GLACIELA KASCHUK, Universidade Paranaense; GEORGE P. SARIDAKIS; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
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Título: |
Genetic variability in Bradyrhizobium japonicum strains nodulating soybean [Glycine max (L.) Merrill]. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
World Journal of Microbiology and Biotechnology, Dec. 2011. |
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DOI: |
10.1007/s11274-011-0964-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Brazil has succeeded in sustaining production of soybean [Glycine max (L.) Merrill] by relying mainly on symbiotic N2 fixation, thanks to the selection and use in inoculants of very effective strains of Bradyrhizobium japonicum and Bradyrhizobium elkanii. It is desirable that rhizobial strains used in inoculants have stable genetic and physiological traits, but experience confirms that rhizobial strains nodulating soybean often lose competitiveness in the field. In this study, soybean cultivar BR 16 was singleinoculated with four B. japonicum strains (CIAT 88, CIAT 89, CIAT 104 and CIAT 105) under aseptic conditions. Forty colonies were isolated from nodules produced by each strain. The progenitor strains, the isolates and four other commercially recommended strains were applied separately to the same cultivar under controlled greenhouse conditions. We observed significant variability in nodulation, shoot dry weight, shoot total N, nodule efficiency (total N mass over nodule mass) and BOX-PCR fingerprinting profiles between variant and progenitor strains. Some variant strains resulted in significantly larger responses in terms of shoot total N, dry weight and nodule efficiency, when compared to their progenitor strain. These results highlight the need for intermittent evaluation of stock bacterial cultures to guarantee effective symbiosis after inoculation. Most importantly, it indicates that it is possible to improve symbiotic effectiveness by screening rhizobial strains for higher N2 fixation capacity within the natural variability that can be found within each progenitor strain. MenosBrazil has succeeded in sustaining production of soybean [Glycine max (L.) Merrill] by relying mainly on symbiotic N2 fixation, thanks to the selection and use in inoculants of very effective strains of Bradyrhizobium japonicum and Bradyrhizobium elkanii. It is desirable that rhizobial strains used in inoculants have stable genetic and physiological traits, but experience confirms that rhizobial strains nodulating soybean often lose competitiveness in the field. In this study, soybean cultivar BR 16 was singleinoculated with four B. japonicum strains (CIAT 88, CIAT 89, CIAT 104 and CIAT 105) under aseptic conditions. Forty colonies were isolated from nodules produced by each strain. The progenitor strains, the isolates and four other commercially recommended strains were applied separately to the same cultivar under controlled greenhouse conditions. We observed significant variability in nodulation, shoot dry weight, shoot total N, nodule efficiency (total N mass over nodule mass) and BOX-PCR fingerprinting profiles between variant and progenitor strains. Some variant strains resulted in significantly larger responses in terms of shoot total N, dry weight and nodule efficiency, when compared to their progenitor strain. These results highlight the need for intermittent evaluation of stock bacterial cultures to guarantee effective symbiosis after inoculation. Most importantly, it indicates that it is possible to improve symbiotic effectiveness by screening rhizobial strains fo... Mostrar Tudo |
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Thesagro: |
Fixação de nitrogênio; Soja. |
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Thesaurus Nal: |
Nitrogen fixation; Soybeans. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 02254naa a2200217 a 4500
001 1910598
005 2018-04-17
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1007/s11274-011-0964-3$2DOI
100 1 $aTORRES, A. R.
245 $aGenetic variability in Bradyrhizobium japonicum strains nodulating soybean [Glycine max (L.) Merrill].
260 $c2011
520 $aBrazil has succeeded in sustaining production of soybean [Glycine max (L.) Merrill] by relying mainly on symbiotic N2 fixation, thanks to the selection and use in inoculants of very effective strains of Bradyrhizobium japonicum and Bradyrhizobium elkanii. It is desirable that rhizobial strains used in inoculants have stable genetic and physiological traits, but experience confirms that rhizobial strains nodulating soybean often lose competitiveness in the field. In this study, soybean cultivar BR 16 was singleinoculated with four B. japonicum strains (CIAT 88, CIAT 89, CIAT 104 and CIAT 105) under aseptic conditions. Forty colonies were isolated from nodules produced by each strain. The progenitor strains, the isolates and four other commercially recommended strains were applied separately to the same cultivar under controlled greenhouse conditions. We observed significant variability in nodulation, shoot dry weight, shoot total N, nodule efficiency (total N mass over nodule mass) and BOX-PCR fingerprinting profiles between variant and progenitor strains. Some variant strains resulted in significantly larger responses in terms of shoot total N, dry weight and nodule efficiency, when compared to their progenitor strain. These results highlight the need for intermittent evaluation of stock bacterial cultures to guarantee effective symbiosis after inoculation. Most importantly, it indicates that it is possible to improve symbiotic effectiveness by screening rhizobial strains for higher N2 fixation capacity within the natural variability that can be found within each progenitor strain.
650 $aNitrogen fixation
650 $aSoybeans
650 $aFixação de nitrogênio
650 $aSoja
700 1 $aKASCHUK, G.
700 1 $aSARIDAKIS, G. P.
700 1 $aCUNHA, M. H. da
773 $tWorld Journal of Microbiology and Biotechnology, Dec. 2011.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
27/12/2016 |
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Data da última atualização: |
22/02/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
FAVARO, S. P.; CARDOSO, A. N.; SIQUEIRA, R. da S. N.; PIGHINELLI, A. L. M. T. |
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Afiliação: |
SIMONE PALMA FAVARO, CNPAE; ALEXANDRE NUNES CARDOSO, CNPAE; RODRIGO DA SILVEIRA NASCIMENTO SIQUEIRA; ANNA LETICIA M T PIGHINELLI, CNPAE. |
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Título: |
Acidificação e atividade de água em frutos de macaúba armazenados sob ventilação. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 6.; CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 9., 2016, Natal, RN. Biodiesel: 10 anos de pesquisa, desenvolvimento e inovação no Brasil: anais. Lavras: UFLA, 2016. |
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Páginas: |
Não paginado. |
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Idioma: |
Português |
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Palavras-Chave: |
Ácidos graxos livres; Óleo de polpa. |
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Thesagro: |
Acrocomia Aculeata; Pós-Colheita. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00828nam a2200193 a 4500
001 2059334
005 2017-02-22
008 2016 bl uuuu u00u1 u #d
100 1 $aFAVARO, S. P.
245 $aAcidificação e atividade de água em frutos de macaúba armazenados sob ventilação.$h[electronic resource]
260 $aIn: CONGRESSO DA REDE BRASILEIRA DE TECNOLOGIA DE BIODIESEL, 6.; CONGRESSO BRASILEIRO DE PLANTAS OLEAGINOSAS, ÓLEOS, GORDURAS E BIODIESEL, 9., 2016, Natal, RN. Biodiesel: 10 anos de pesquisa, desenvolvimento e inovação no Brasil: anais. Lavras: UFLA$c2016
300 $aNão paginado.
650 $aAcrocomia Aculeata
650 $aPós-Colheita
653 $aÁcidos graxos livres
653 $aÓleo de polpa
700 1 $aCARDOSO, A. N.
700 1 $aSIQUEIRA, R. da S. N.
700 1 $aPIGHINELLI, A. L. M. T.
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