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Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
16/05/2013 |
Data da última atualização: |
20/05/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MARKS, B. B.; MEGÍAS, M.; NOGUEIRA, M. A.; HUNGRIA, M. |
Afiliação: |
BETTINA BERQUÓ MARKS, UEL; MANUEL MEGÍAS, Universidad de Sevilla; MARCO ANTONIO NOGUEIRA, CNPSO; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
Título: |
Biotechnological potential of rhizobial metabolites to enhance the performance of Bradyrhizobium spp. and Azospirillum brasiliense inoculants with soybean and maize. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
AMB Express, Heidelberg, v. 3, n. 21, p. 1-10, Apr. 2013. |
DOI: |
10.1186/2191-0855-3-21 |
Idioma: |
Inglês |
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 |
Thesagro: |
Soja. |
Categoria do assunto: |
-- |
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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Embrapa Soja (CNPSO) |
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Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
15/02/2016 |
Data da última atualização: |
19/12/2019 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
ANJOS, L. H. C. dos; SANTOS, H. G. dos; FONTANA, A.; MENEZES, A. R. de. |
Afiliação: |
LUCIA HELENA CUNHA DOS ANJOS, UFRRJ; HUMBERTO GONCALVES DOS SANTOS, CNPS; ADEMIR FONTANA, CNPS; ANDRESSA ROSAS DE MENEZES, UFF. |
Título: |
Rationale for a Brazilian Soil Classification System - SiBCS. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
In: ASA, CSSA AND SSSA INTERNATIONAL ANNUAL MEETINGS, 2015, Minneapolis. Synergy in science: partnering for solutions: conference proceedings. Madison: ASA: CSSA: SSSA, 2015. |
Idioma: |
Inglês |
Palavras-Chave: |
SiBCS. |
Thesagro: |
Classificação do Solo; Taxonomia. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/139035/1/2015-209.pdf
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Marc: |
LEADER 00633nam a2200169 a 4500 001 2037000 005 2019-12-19 008 2015 bl uuuu u00u1 u #d 100 1 $aANJOS, L. H. C. dos 245 $aRationale for a Brazilian Soil Classification System - SiBCS.$h[electronic resource] 260 $aIn: ASA, CSSA AND SSSA INTERNATIONAL ANNUAL MEETINGS, 2015, Minneapolis. Synergy in science: partnering for solutions: conference proceedings. Madison: ASA: CSSA: SSSA$c2015 650 $aClassificação do Solo 650 $aTaxonomia 653 $aSiBCS 700 1 $aSANTOS, H. G. dos 700 1 $aFONTANA, A. 700 1 $aMENEZES, A. R. de
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