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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
01/08/1999 |
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Data da última atualização: |
01/08/1999 |
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Autoria: |
OLIVEIRA, A. R. D. de. |
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Título: |
Doencas sexualmente transmissiveis: educar para prevenir. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Rio de Janeiro: Ed. Biologia e Saude, 1997. |
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Páginas: |
34p. |
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Idioma: |
Português |
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Palavras-Chave: |
Biology; Doenca genital; Doenca humana; Genital diseases; Health; Sex. |
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Thesagro: |
Biologia; Saúde; Sexo. |
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Thesaurus Nal: |
human diseases. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00575nam a2200229 a 4500
001 1292198
005 1999-08-01
008 1997 bl uuuu u0uu1 u #d
100 1 $aOLIVEIRA, A. R. D. de
245 $aDoencas sexualmente transmissiveis$beducar para prevenir.
260 $aRio de Janeiro: Ed. Biologia e Saude$c1997
300 $a34p.
650 $ahuman diseases
650 $aBiologia
650 $aSaúde
650 $aSexo
653 $aBiology
653 $aDoenca genital
653 $aDoenca humana
653 $aGenital diseases
653 $aHealth
653 $aSex
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
16/05/2013 |
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Data da última atualização: |
20/05/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
MARKS, B. B.; MEGÍAS, M.; NOGUEIRA, M. A.; HUNGRIA, M. |
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Afiliação: |
BETTINA BERQUÓ MARKS, UEL; MANUEL MEGÍAS, Universidad de Sevilla; MARCO ANTONIO NOGUEIRA, CNPSO; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
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Título: |
Biotechnological potential of rhizobial metabolites to enhance the performance of Bradyrhizobium spp. and Azospirillum brasiliense inoculants with soybean and maize. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
AMB Express, Heidelberg, v. 3, n. 21, p. 1-10, Apr. 2013. |
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DOI: |
10.1186/2191-0855-3-21 |
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Idioma: |
Inglês |
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Conteúdo: |
Agricultural sustainability may represent the greatest encumbrance to increasing food production. On the other hand, as a component of sustainability, replacement of chemical fertilizers by bio-fertilizers has the potential to lower costs for farmers, to increase yields, and to mitigate greenhouse-gas emissions and pollution of water and soil. Rhizobia and plant-growth-promoting rhizobacteria (PGPR) have been broadly used in agriculture, and advances in our understanding of plant-bacteria interactions have been achieved; however, the use of signaling molecules to enhance crop performance is still modest. In this study, we evaluated the effects of concentrated metabolites (CM) from two strains of rhizobia-Bradyrhizobium diazoefficiens USDA 110T (BD1) and Rhizobium tropici CIAT 899T (RT1)?at two concentrations of active compounds (10-8 and 10-9 M)_on the performances of two major plant-microbe interactions, of Bradyrhizobium spp.-soybean (Glycine max (L.) Merr.) and Azospirillum brasilense-maize (Zea mays L.). For soybean, one greenhouse and two field experiments were performed and effects of addition of CM from the homologous and heterologous strains, and of the flavonoid genistein were investigated. For maize, three field experiments were performed to examine the effects of CM from RT1. For soybean, compared to the treatment inoculated exclusively with Bradyrhizobium, benefits were achieved with the addition of CM-BD1; at 10?9 M, grain yield was increased by an average of 4.8%. For maize, the best result was obtained with the addition of CM-RT1, also at 10?9 M, increasing grain yield by an average of 11.4%. These benefits might be related to a combination of effects attributed to secondary compounds produced by the rhizobial strains, including exopolysaccharides (EPSs), plant hormones and lipo-chitooligosaccharides (LCOs). The results emphasize the biotechnological potential of using secondary metabolites of rhizobia together with inoculants containing both rhizobia and PGPR to improve the growth and yield of grain crops. MenosAgricultural sustainability may represent the greatest encumbrance to increasing food production. On the other hand, as a component of sustainability, replacement of chemical fertilizers by bio-fertilizers has the potential to lower costs for farmers, to increase yields, and to mitigate greenhouse-gas emissions and pollution of water and soil. Rhizobia and plant-growth-promoting rhizobacteria (PGPR) have been broadly used in agriculture, and advances in our understanding of plant-bacteria interactions have been achieved; however, the use of signaling molecules to enhance crop performance is still modest. In this study, we evaluated the effects of concentrated metabolites (CM) from two strains of rhizobia-Bradyrhizobium diazoefficiens USDA 110T (BD1) and Rhizobium tropici CIAT 899T (RT1)?at two concentrations of active compounds (10-8 and 10-9 M)_on the performances of two major plant-microbe interactions, of Bradyrhizobium spp.-soybean (Glycine max (L.) Merr.) and Azospirillum brasilense-maize (Zea mays L.). For soybean, one greenhouse and two field experiments were performed and effects of addition of CM from the homologous and heterologous strains, and of the flavonoid genistein were investigated. For maize, three field experiments were performed to examine the effects of CM from RT1. For soybean, compared to the treatment inoculated exclusively with Bradyrhizobium, benefits were achieved with the addition of CM-BD1; at 10?9 M, grain yield was increased by an average of 4.... Mostrar Tudo |
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Thesagro: |
Soja. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/84662/1/biotechnological.pdf
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Marc: |
LEADER 02678naa a2200181 a 4500
001 1958119
005 2014-05-20
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1186/2191-0855-3-21$2DOI
100 1 $aMARKS, B. B.
245 $aBiotechnological potential of rhizobial metabolites to enhance the performance of Bradyrhizobium spp. and Azospirillum brasiliense inoculants with soybean and maize.$h[electronic resource]
260 $c2013
520 $aAgricultural sustainability may represent the greatest encumbrance to increasing food production. On the other hand, as a component of sustainability, replacement of chemical fertilizers by bio-fertilizers has the potential to lower costs for farmers, to increase yields, and to mitigate greenhouse-gas emissions and pollution of water and soil. Rhizobia and plant-growth-promoting rhizobacteria (PGPR) have been broadly used in agriculture, and advances in our understanding of plant-bacteria interactions have been achieved; however, the use of signaling molecules to enhance crop performance is still modest. In this study, we evaluated the effects of concentrated metabolites (CM) from two strains of rhizobia-Bradyrhizobium diazoefficiens USDA 110T (BD1) and Rhizobium tropici CIAT 899T (RT1)?at two concentrations of active compounds (10-8 and 10-9 M)_on the performances of two major plant-microbe interactions, of Bradyrhizobium spp.-soybean (Glycine max (L.) Merr.) and Azospirillum brasilense-maize (Zea mays L.). For soybean, one greenhouse and two field experiments were performed and effects of addition of CM from the homologous and heterologous strains, and of the flavonoid genistein were investigated. For maize, three field experiments were performed to examine the effects of CM from RT1. For soybean, compared to the treatment inoculated exclusively with Bradyrhizobium, benefits were achieved with the addition of CM-BD1; at 10?9 M, grain yield was increased by an average of 4.8%. For maize, the best result was obtained with the addition of CM-RT1, also at 10?9 M, increasing grain yield by an average of 11.4%. These benefits might be related to a combination of effects attributed to secondary compounds produced by the rhizobial strains, including exopolysaccharides (EPSs), plant hormones and lipo-chitooligosaccharides (LCOs). The results emphasize the biotechnological potential of using secondary metabolites of rhizobia together with inoculants containing both rhizobia and PGPR to improve the growth and yield of grain crops.
650 $aSoja
700 1 $aMEGÍAS, M.
700 1 $aNOGUEIRA, M. A.
700 1 $aHUNGRIA, M.
773 $tAMB Express, Heidelberg$gv. 3, n. 21, p. 1-10, Apr. 2013.
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