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| Registros recuperados : 60 | |
| 21. |  | NDAW, S. M.; BOA SORTE, P. M. F.; BALDANI, J. I.; CANELLAS, L. P.; OLIVARES, F. L. Combining effect of the heat tratament and herbaspirillum seropedicae inoculation over sugarcane associated bacteria diversity using DGGE approach. In: INTERNATIONAL SYMPOSIUM ON BIOLOGICAL NITROGEN WITH NON-LEGUMES, 12.; INTERNATIONAL INCT SYMPOSIUM ON NITROGEN BIOLOGICAL FIXATION, 2., 03 a 8 de outubro, 2010, Búzios, RJ. Book of abstracts... Seropédica: Embrapa Agrobiologia, 2010. SV.20| Biblioteca(s): Embrapa Agrobiologia. |
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| 23. | | NOGUEIRA, E. de M.; OLIVARES, F. L.; JAPIASSU, J. C.; VILAR, C.; VINAGRE, F.; BALDANI, J. I.; HEMERLY, A. S. Characterization of glutamine synthetase genes in sugarcane genotypes with different rates of biological nitrogen fixation. Plant Science, Ireland, v. 169, n. 5, p. 819-832, nov. 2005.| Biblioteca(s): Embrapa Agrobiologia. |
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| 24. | | REIS, V. M.; OLIVEIRA, A. L. M. de; OLIVARES, F. L.; BALDANI, J. I.; BODDEY, R. M.; URQUIAGA, S. Inoculants for sugar cane: scientific bases for the adoption of the technology for biofuel production. In: INTERNATIONAL CONGRESS ON NITROGEN FIXATION, 15th., INTERNATIONAL CONFERENCE OF THE AFRICAN ASSOCIATION FOR BIOLOGICAL NITROGEN FIXATION, 12th., 2007, Cape Town, South Africa. BNF Applications for poverty alleviation. abstracts... Cape Town: University of Technology & Sister Institutions in Cape Town, 2007. 1 p.| Biblioteca(s): Embrapa Agrobiologia. |
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| 25. | | BALDOTTO, L. E. B.; BALDOTTO, M. A.; GIRO, V. B.; CANELLAS, L. P.; OLIVARES, F. L.; BRESSAN-SMITH, R. Desempenho do abacaxizeiro 'Vitória' em resposta à aplicação de ácidos húmicos durante a aclimatação. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 33, n. 4, p. 979-990, jul./ago. 2009. Separata de Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 33, n. 4, jul./ago. 2009.| Biblioteca(s): Embrapa Solos / UEP-Recife. |
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| 28. | | AGUIAR, N. O.; CANELLAS, L. P.; OLIVARES, F. L.; SILVA, L. G. JR S.; NOVOTNY, E. H.; FAÇANHA, A. R. Bioatividade de ácidos húmicos extraídos de vermicomposto em diferentes estágios de maturidade. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29., 2010, Guarapari, ES. Anais... Guarapari, ES: FertBio, 2010.| Biblioteca(s): Embrapa Solos. |
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| 29. | | MARTINEZ-BALMORI, D.; SPACCINI, R.; AGUIAR, N. O.; NOVOTNY, E. H.; OLIVARES, F. L.; CANELLAS, L. P. Molecular characteristics and bioactivity of humic acids isolated from vermicomposts. In: MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY, 17., 2014, Ioannina. Natural organic matter: structure-dynamics innovative applications: book of abstracts. Ioannina: University of Ioannina, 2014. p. 335-336.| Biblioteca(s): Embrapa Solos. |
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| 30. | | MARTINEZ-BALMORI, D.; SPACCINI, R.; AGUIAR, N. O.; NOVOTNY, E. H.; OLIVARES, F. L.; CANELLAS, L. P. Molecular characteristics of humic acids isolated from vermicomposts and their relationship to bioactivity. Journal of Agricultural and Food Chemistry, v. 62, n. 47, p. 11412-11419, 2014.| Biblioteca(s): Embrapa Solos. |
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| 31. | | CONCEIÇÃO, P. M. da; VIEIRA, H. D.; CANELLAS, L. P.; MARQUES JÚNIOR, R. B.; OLIVARES, F. L. Recobrimento de sementes de milho com ácidos húmicos e bactérias diazotróficas endofíticas. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 43, n. 4, p. 545-548, abr. 2008 Notas Científicas.
Título em inglês: Corn seed coating with humic acids and endophytic diazotrophic bacteria.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 32. | | CYSNE, A. Q.; LOPES, R.; RAIZER, M. D. M.; TOMAZ, J. S.; LOPES, M. T. G.; OLIVARES, F. L. Preparo rápido de amostras de pólen de açaí-solteiro e tucumã-do-amazonas, sem uso de acetólise, para análise em microscópio eletrônico de varredura. Manaus: Embrapa Amazônia Ocidental, 2021. 10 p. (Embrapa Amazônia Ocidental. Comunicado técnico, 151). ODS| Biblioteca(s): Embrapa Agroindústria Tropical; Embrapa Amazônia Ocidental. |
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| 38. | | CANELLAS, L. P.; MÉDICI, L. O.; AGUIAR, N. O.; CAMPOSTRINI, E.; ROSA, R. C. C.; FAÇANHA, A. R.; OLIVARES, F. L.; BALMORI, D. M. A combination of humic substances and Herbaspirillum seropedicae inoculation enhances the growth of maize (Zea mays L.). Plant Soil, August, 2012.| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 39. | | 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.| Biblioteca(s): Embrapa Agrobiologia. |
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| 40. | | COSTA LIMA, M. A.; VILAR, C. V.; REIS, V. M.; OLIVARES, F. L.; BALDANI, J. I.; FERREIRA, P. C. G.; HEMERLY, A. S. Detection of sugarcane (Saccharum officinarum L.) genes 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-74.| Biblioteca(s): Embrapa Agrobiologia. |
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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
12/02/2014 |
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Data da última atualização: |
10/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
AGUIAR, N. O.; NOVOTNY, E. H.; OLIVEIRA, A. L.; RUMJANEK, V. M.; OLIVARES, F. L.; CANELLAS, L. P. |
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Afiliação: |
Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura (Nudiba), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF); ETELVINO HENRIQUE NOVOTNY, CNPS; Laboratório de Química do Núcleo de Criminalística da Superintendência da Polícia Federal no Estado do Rio de Janeiro; Laboratório de Química do Núcleo de Criminalística da Superintendência da Polícia Federal no Estado do Rio de Janeiro; Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura (Nudiba), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF); L.P. Canellas, Núcleo de Desenvolvimento de Insumos Biológicos para a Agricultura (Nudiba), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF). |
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Título: |
Prediction of humic acids bioactivity using spectroscopy and multivariate analysis. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Journal of Geochemical Exploration, v. 129, p. 95-102, Jun. 2013. |
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DOI: |
https://doi.org/10.1016/j.gexplo.2012.10.005 |
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Idioma: |
Inglês |
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Conteúdo: |
Humic substances (HS) represent the organic material most widespread in nature and have positive effects on plant physiology influencing nutrient uptake and root architecture. Understanding the structure-activity relationship has been considered an essential step to drive technological approaches to produce HS with enhanced plant growth promotion performance. In this studywe used solid state nuclear magnetic resonance (CP-MAS 13C NMR) and infrared spectroscopy with diffuse reflectance (DRIFT), a collection of data from humic acid-like substances (HA) obtained from vermicompost produced with different sources of raw material and maturation stage. The bioactivity was evaluated using the ability of HA to induce lateral root emergence sites as well acidification of the liquidmediumby treated-maize root seedlings. The structure-activity relationshipwas done using multivariate analysis including principal component analysis (PCA), principal component regression (PCR) and Spearman correlation joined with NMR and DRIFT results. The main variables (higher loadings) correlated with HA bioactivity were for NMR positive loadings for lignin (56 ppm, 124 ppm, 148 and 153 ppm) and COOH groups (174 ppm) and negative loadings for carbohydrates (64, 75 and 102 ppm). For DRIFT the main positive loadings were aryl stretching and bending (1560, 1480, 860 and 780 cm-1) probably from lignins; for 2926 cm-1 and 2852 cm-1 due to C-H asymmetric and symmetric stretching, respectively, probably from long chain fat acids due to the presence of rocking absorption band of (CH2)n with n>4 at 720 cm-1 and negative loadings due to carbohydrate moieties (around 1100 cm-1, C-O stretching) and carboxylic acids (1724 cm-1, C-O stretching and 1220 cm-1, C-OH stretching and CO-H bending). The use of spectroscopy data to attempt to relate structure to bioactivity may be of practical interest in developing plant growth promoters using renewed source of humic materials. MenosHumic substances (HS) represent the organic material most widespread in nature and have positive effects on plant physiology influencing nutrient uptake and root architecture. Understanding the structure-activity relationship has been considered an essential step to drive technological approaches to produce HS with enhanced plant growth promotion performance. In this studywe used solid state nuclear magnetic resonance (CP-MAS 13C NMR) and infrared spectroscopy with diffuse reflectance (DRIFT), a collection of data from humic acid-like substances (HA) obtained from vermicompost produced with different sources of raw material and maturation stage. The bioactivity was evaluated using the ability of HA to induce lateral root emergence sites as well acidification of the liquidmediumby treated-maize root seedlings. The structure-activity relationshipwas done using multivariate analysis including principal component analysis (PCA), principal component regression (PCR) and Spearman correlation joined with NMR and DRIFT results. The main variables (higher loadings) correlated with HA bioactivity were for NMR positive loadings for lignin (56 ppm, 124 ppm, 148 and 153 ppm) and COOH groups (174 ppm) and negative loadings for carbohydrates (64, 75 and 102 ppm). For DRIFT the main positive loadings were aryl stretching and bending (1560, 1480, 860 and 780 cm-1) probably from lignins; for 2926 cm-1 and 2852 cm-1 due to C-H asymmetric and symmetric stretching, respectively, probably from lo... Mostrar Tudo |
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Palavras-Chave: |
Análise multivariada; Efeitos fisiológicos; Espectroscopia RMN; Relação bioatividade estrutural; Tração. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
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001 1979549
005 2021-11-10
008 2013 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.gexplo.2012.10.005$2DOI
100 1 $aAGUIAR, N. O.
245 $aPrediction of humic acids bioactivity using spectroscopy and multivariate analysis.$h[electronic resource]
260 $c2013
520 $aHumic substances (HS) represent the organic material most widespread in nature and have positive effects on plant physiology influencing nutrient uptake and root architecture. Understanding the structure-activity relationship has been considered an essential step to drive technological approaches to produce HS with enhanced plant growth promotion performance. In this studywe used solid state nuclear magnetic resonance (CP-MAS 13C NMR) and infrared spectroscopy with diffuse reflectance (DRIFT), a collection of data from humic acid-like substances (HA) obtained from vermicompost produced with different sources of raw material and maturation stage. The bioactivity was evaluated using the ability of HA to induce lateral root emergence sites as well acidification of the liquidmediumby treated-maize root seedlings. The structure-activity relationshipwas done using multivariate analysis including principal component analysis (PCA), principal component regression (PCR) and Spearman correlation joined with NMR and DRIFT results. The main variables (higher loadings) correlated with HA bioactivity were for NMR positive loadings for lignin (56 ppm, 124 ppm, 148 and 153 ppm) and COOH groups (174 ppm) and negative loadings for carbohydrates (64, 75 and 102 ppm). For DRIFT the main positive loadings were aryl stretching and bending (1560, 1480, 860 and 780 cm-1) probably from lignins; for 2926 cm-1 and 2852 cm-1 due to C-H asymmetric and symmetric stretching, respectively, probably from long chain fat acids due to the presence of rocking absorption band of (CH2)n with n>4 at 720 cm-1 and negative loadings due to carbohydrate moieties (around 1100 cm-1, C-O stretching) and carboxylic acids (1724 cm-1, C-O stretching and 1220 cm-1, C-OH stretching and CO-H bending). The use of spectroscopy data to attempt to relate structure to bioactivity may be of practical interest in developing plant growth promoters using renewed source of humic materials.
653 $aAnálise multivariada
653 $aEfeitos fisiológicos
653 $aEspectroscopia RMN
653 $aRelação bioatividade estrutural
653 $aTração
700 1 $aNOVOTNY, E. H.
700 1 $aOLIVEIRA, A. L.
700 1 $aRUMJANEK, V. M.
700 1 $aOLIVARES, F. L.
700 1 $aCANELLAS, L. P.
773 $tJournal of Geochemical Exploration$gv. 129, p. 95-102, Jun. 2013.
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