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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
21/05/2012 |
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Data da última atualização: |
04/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
AGUIAR, N. O.; OLIVARES, F. L.; NOVOTNY, E. H.; DOBBS, L. B.; BALMORI, D. M.; SANTOS JUNIOR, L. G.; CHAGAS, J. G.; FAÇANHA, A. R.; CANELLAS, L. P. |
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Título: |
Bioactivity of humic acids isolated from vermicomposts at different maturation stages. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Plant and Soil, v. 362, p. 161-174, 2013. |
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DOI: |
https://doi.org/10.1007/s11104-012-1277-5 |
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Idioma: |
Inglês |
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Conteúdo: |
Background and aims Vermicomposts are useful to improve environmental quality and sustainable agriculture. Moreover, it is enriched with highly bioactive humic acids (HAs)-like substances and can substitute no-renew source of humic substances to use as plant growth promoters in agriculture. The aim of this work was to evaluate the biological effects of HAs isolated at increasing vermicompost maturation stages. Methods Lateral root emergence, aqueous growth medium acidification and proton pumps of maize seedlings were used to monitor HAs bioactivity. Molecular conformation of the HAs was determined by sizeexclusion and reverse-phase high performance liquid chromatography. We applied spectroscopy 13C-NMR on VC samples to follow the humification process. Results We observed a decrease of carbohydrate content and selective preservation of hydrophobic alkyl and aryl C components by 13C-NMR during vermicompost maturation. Apparent molecular weight distribution of HAs did not change with vermicompost maturation, but was possible observed increase on hydrophobic moieties. Conclusion After 60 days of vermicomposting, all HAs promotes lateral root emergence, acidification of growth aqueous medium and induction of proton pumps without changes on apparent molecular weight but with enhance on hydrophobic domains. |
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Palavras-Chave: |
Physiological effects; Structural bioactivity ratio. |
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Thesaurus Nal: |
humic substances. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02128naa a2200265 a 4500
001 1925065
005 2021-11-04
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11104-012-1277-5$2DOI
100 1 $aAGUIAR, N. O.
245 $aBioactivity of humic acids isolated from vermicomposts at different maturation stages.$h[electronic resource]
260 $c2013
520 $aBackground and aims Vermicomposts are useful to improve environmental quality and sustainable agriculture. Moreover, it is enriched with highly bioactive humic acids (HAs)-like substances and can substitute no-renew source of humic substances to use as plant growth promoters in agriculture. The aim of this work was to evaluate the biological effects of HAs isolated at increasing vermicompost maturation stages. Methods Lateral root emergence, aqueous growth medium acidification and proton pumps of maize seedlings were used to monitor HAs bioactivity. Molecular conformation of the HAs was determined by sizeexclusion and reverse-phase high performance liquid chromatography. We applied spectroscopy 13C-NMR on VC samples to follow the humification process. Results We observed a decrease of carbohydrate content and selective preservation of hydrophobic alkyl and aryl C components by 13C-NMR during vermicompost maturation. Apparent molecular weight distribution of HAs did not change with vermicompost maturation, but was possible observed increase on hydrophobic moieties. Conclusion After 60 days of vermicomposting, all HAs promotes lateral root emergence, acidification of growth aqueous medium and induction of proton pumps without changes on apparent molecular weight but with enhance on hydrophobic domains.
650 $ahumic substances
653 $aPhysiological effects
653 $aStructural bioactivity ratio
700 1 $aOLIVARES, F. L.
700 1 $aNOVOTNY, E. H.
700 1 $aDOBBS, L. B.
700 1 $aBALMORI, D. M.
700 1 $aSANTOS JUNIOR, L. G.
700 1 $aCHAGAS, J. G.
700 1 $aFAÇANHA, A. R.
700 1 $aCANELLAS, L. P.
773 $tPlant and Soil$gv. 362, p. 161-174, 2013.
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| Registros recuperados : 49 | |
| 41. |  | REIS, V. M.; OLIVEIRA, A. L. M. de; SILVA, M. F. da; OLIVARES, F. L.; BALDANI, J. I.; BODDEY, R. M.; URQUIAGA, S. Inoculants for sugar cane: the scientific bases for the adoption of the technology for biofuel production. In: DAKORA, F.D. et al. (Ed.). INTERNATIONAL NITROGEN FIXATION CONGRESS, 15th., INTERNATIONAL CONFERENCE OF THE AFRICAN ASSOCIATION FOR BIOLOGICAL NITROGEN FIXATION, 12th., 2008, South Africa. Biological nitrogen fixation: towards poverty alleviation through sustainable agriculture: proceedings... Heidelberg: Springer, 2008. (Current Plant Science and Biotechnology in Agriculture 42 Proceedings of International Nitrogen Fixation Congress, 15.; International Conference of the African Association for Biological Nitrogen Fixation, 12., 2008, south africa.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 42. | | JAMES, E. K.; OLIVARES, F. L.; OLIVEIRA, A. L. M. de; REIS JÚNIOR, F. B. dos; SILVA, L. G. da; REIS, V. M. Further observations on the interaction between sugar can and Gluconacetobacter diazotrophicus under laboratory and greenhouse conditions. Journal of Experimental Botany, London, v. 52, n. 357, p. 747-760, apr. 2001.| Biblioteca(s): Embrapa Agrobiologia. |
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| 43. | | BALDANI, J. Ivo; OLIVARES, F. L.; OLIVEIRA, A. L. M.; REIS JUNIOR, F. B.; BALDANI, Vera L. D.; REIS, Veronica M.; HEMERLY, A.; DOBEREINER, Johanna. Nitrogen - fixing endophytes: Recent advances in the association with graminaceous plants grown in the tropics. In: INTERNATIONAL CONGRESS ON NITROGEN FIXATION, 11., jul. 1997, Paris. Abstracts... Paris: Institut Pasteur; INRA; CNRS; CEA; ORSTOM; CIRAD, 1997. p.14.| Biblioteca(s): Embrapa Agrobiologia. |
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| 44. | | VILAR, C. V.; COSTA LIMA, M. A.; REIS, V. M.; OLIVARES, F. L.; BALDANI, J. I.; FERREIRA, P. C. G.; HEMERLY, A. S. Molecular analysis of a sugarcane (Saccharum officinarum L.) gene induced by endophytic nitrogen-fixing bacteria. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUIMICA E BIOLOGIA MOLECULAR, 25., maio 1996, Caxambu. Resumos... Caxambu: Sociedade Brasileira de Bioquimica e Biologia Molecular, 1996. p.42. Resumo E-75.| Biblioteca(s): Embrapa Agrobiologia. |
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| 46. | | AGUIAR, N. O.; MEDICI, L. O.; OLIVARES, F. L.; DOBBSS, L. B.; TORRES-NETTO, A.; SILVA, S. F.; NOVOTNY, E. H.; CANELLAS, L. P. Metabolic profile and antioxidant responses during drought stress recovery in sugarcane treated with humic acids and endophytic diazotrophic bacteria. Annals of Applied Biology, v. 168, n. 2, p. 203-213, Mar. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Solos. |
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| 47. | | FAÇANHA, A. R.; FAÇANHA, A. L. O.; OLIVARES, F. L.; GURIDI, F.; SANTOS, G. de A.; VELLOSO, A. C. X.; RUMJANEK, V. M.; BRASIL, F.; SCHRIPSEMA, J.; BRAZ-FILHO, R.; OLIVEIRA, M. A de; CANELLAS, L. P. Bioatividade de ácidos húmicos: efeitos sobre o desenvolvimento radicular e sobre a bomba de prótons da membrana plasmática. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 9, p. 1301-1310, set. 2002 Título em inglês: Humic acids bioactivity: effects on root development and on the plasma membrane proton pump.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 48. | | BUENO, S. C. E.; BAPTISTA FILHO, M.; ALMEIDA JUNIOR, P. S. G. de; POLIDORO, J. C.; OLIVARES, F. L.; STHEL, M. S.; VARGAS, H.; MOTA, L.; SILVA, M. G. da. Cuban zeolite as ammonium carrier in urea-based fertilizer pellets: photoacoustic-based sensor for monitoring N-ammonia losses byvolatilization in aqueous solutions. Sensors and Actuators B: Chemical, v. 212, p. 35-40, Jun. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Solos. |
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| 49. | | RAMOS, E. T. de A.; OLIVARES, F. L.; ROCHA, L. O. da; SILVA, R. F. da; CARMO, M. G. F. do; LOPES, M. T. G.; MENESES, C. H. S. G.; VIDAL, M. S.; BALDANI, J. I. The effects of gluconacin on bacterial tomato pathogens and protection against Xanthomonas perforans, the causal agent of bacterial spot disease Plants, v. 12, 3208, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 4 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| Registros recuperados : 49 | |
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