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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
24/11/2022 |
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Data da última atualização: |
24/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TADINI, A. M.; NICOLODELLI, G.; HAJJOUL, H.; MILORI, D. M. B. P.; MOUNIER, S. |
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Afiliação: |
DEBORA MARCONDES BASTOS PEREIRA, CNPDIA. |
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Título: |
Humic fractions from Amazon soils: Lifetime study and humification process by fluorescence spectroscopy. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Applied Geochemistry, v. 147, a105486, 2022. |
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Páginas: |
1-8 |
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ISSN: |
0883-2927 |
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DOI: |
https://doi.org/10.1016/j.apgeochem.2022.105486 |
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Idioma: |
Inglês |
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Conteúdo: |
The Amazon Forest is an important and primordial ecosystem, as it controls the dynamics of soil organic matter (SOM) and is considered one of the crucial carbon reservoirs in the world. Based on that, this study evaluated the molecular properties of humic (HA) and fulvic (FA) acid from Amazon soil, with and without Cu(II) ions, by Time-Resolved Laser Fluorescence Spectroscopy (TRLFS) and Fluorescence Spectroscopy (FS). Fluorescence excitation-emission matrix (EEM) was obtained by FS, and EEM spectra were treated by canonical polyadic/ parallel factor analysis (EEM-CP/PARAFAC). The results showed that the humification index (A465nm) determined by FS is directly dependent on fluorophores? CII/CI ratio in these soils with depth (r = 0.89), especially for HA samples in deep horizons, which demonstrated that the CII consists more complex and humified structure of the SOM. The lifetime decay showed the presence of static quenching in the humic fractions. From the lifetime data provided by TRLFS and the different correlations with carbon content and A465nm, it can be suggested that the fluorescence suppression modifies the molecular properties of the humic fractions with the addition of Cu(II) ions, such as altering the mobility and availability of the metal in the complexation reactions in these Amazonian Spodosols, mainly for the fulvic fraction. |
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Palavras-Chave: |
Amazon soil; Humic fractions; Humification process; Lifetime; Molecular changes. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02153naa a2200265 a 4500
001 2148734
005 2022-11-24
008 2022 bl uuuu u00u1 u #d
022 $a0883-2927
024 7 $ahttps://doi.org/10.1016/j.apgeochem.2022.105486$2DOI
100 1 $aTADINI, A. M.
245 $aHumic fractions from Amazon soils$bLifetime study and humification process by fluorescence spectroscopy.$h[electronic resource]
260 $c2022
300 $a1-8
520 $aThe Amazon Forest is an important and primordial ecosystem, as it controls the dynamics of soil organic matter (SOM) and is considered one of the crucial carbon reservoirs in the world. Based on that, this study evaluated the molecular properties of humic (HA) and fulvic (FA) acid from Amazon soil, with and without Cu(II) ions, by Time-Resolved Laser Fluorescence Spectroscopy (TRLFS) and Fluorescence Spectroscopy (FS). Fluorescence excitation-emission matrix (EEM) was obtained by FS, and EEM spectra were treated by canonical polyadic/ parallel factor analysis (EEM-CP/PARAFAC). The results showed that the humification index (A465nm) determined by FS is directly dependent on fluorophores? CII/CI ratio in these soils with depth (r = 0.89), especially for HA samples in deep horizons, which demonstrated that the CII consists more complex and humified structure of the SOM. The lifetime decay showed the presence of static quenching in the humic fractions. From the lifetime data provided by TRLFS and the different correlations with carbon content and A465nm, it can be suggested that the fluorescence suppression modifies the molecular properties of the humic fractions with the addition of Cu(II) ions, such as altering the mobility and availability of the metal in the complexation reactions in these Amazonian Spodosols, mainly for the fulvic fraction.
653 $aAmazon soil
653 $aHumic fractions
653 $aHumification process
653 $aLifetime
653 $aMolecular changes
700 1 $aNICOLODELLI, G.
700 1 $aHAJJOUL, H.
700 1 $aMILORI, D. M. B. P.
700 1 $aMOUNIER, S.
773 $tApplied Geochemistry$gv. 147, a105486, 2022.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Biblioteca |
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Registro |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
01/06/2020 |
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Data da última atualização: |
14/02/2022 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
RECH, K. S.; OLIVEIRA, C. F. de; MOURA, P. F.; OLIVEIRA, C. da S. P. de; HIROTA, B. C. K.; OLIVEIRA, M. de; RÜDIGER, A. L.; SÁ, E. L. de; MIGUEL, O. G.; AUER, C. G.; MIGUEL, M. D. |
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Afiliação: |
Katlin Suellen Rech, UFPR; Camila Freitas de Oliveira, UFPR; Paula Francislaine Moura, UFPR; Cristiane da Silva Paula de Oliveira, UFPR; Beatriz Cristina Konopatzki Hirota, UFPR; Maislian de Oliveira, UFPR; André Luis Rüdiger, UFPR; Eduardo Lemos de Sá, UFPR; Obdulio Gomes Miguel, UFPR; CELSO GARCIA AUER, CNPF; Marilis Dallarmi Miguel, UFPR. |
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Título: |
Optimisation of Bjerkandera adusta cultureconditions for the production of [alfa]-[alfa]-trehalose. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Natural Product Research, v. 35, n. 21, p. 4206-4209, 2021. |
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DOI: |
https://doi.org/10.1080/14786419.2020.1758092 |
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Idioma: |
Inglês |
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Notas: |
Short Communication. |
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Conteúdo: |
Several factors affect the vegetative growth of fungi, such as temperature, pH, and culture medium. In addition to mycelial growth, these factors affect metabolite production. There are limited studies that have identified the metabolites produced by the fungus Bjerkandera adusta, which have potential biotechnological applications. Here, we evaluated the effects of temperature, culture medium, and incubation time on the production of mycelial mass and metabolites of B. adusta isolated from Pinus taeda. The highest mycelial mass was obtained at 24 °C, in the potato dextrose and malt extract media, upon incubation for 28 and 35 days. The disaccharide α-α-trehalose was for the first time isolated and identified by X-ray diffraction in this fungal genus. |
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Palavras-Chave: |
Cristalografia. |
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Thesagro: |
Açúcar; Cultura In Vitro; Fungo. |
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Thesaurus NAL: |
Bjerkandera adusta; Crystallography; In vitro culture; Pinus. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 01843naa a2200361 a 4500
001 2122813
005 2022-02-14
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/14786419.2020.1758092$2DOI
100 1 $aRECH, K. S.
245 $aOptimisation of Bjerkandera adusta cultureconditions for the production of [alfa]-[alfa]-trehalose.$h[electronic resource]
260 $c2021
500 $aShort Communication.
520 $aSeveral factors affect the vegetative growth of fungi, such as temperature, pH, and culture medium. In addition to mycelial growth, these factors affect metabolite production. There are limited studies that have identified the metabolites produced by the fungus Bjerkandera adusta, which have potential biotechnological applications. Here, we evaluated the effects of temperature, culture medium, and incubation time on the production of mycelial mass and metabolites of B. adusta isolated from Pinus taeda. The highest mycelial mass was obtained at 24 °C, in the potato dextrose and malt extract media, upon incubation for 28 and 35 days. The disaccharide α-α-trehalose was for the first time isolated and identified by X-ray diffraction in this fungal genus.
650 $aBjerkandera adusta
650 $aCrystallography
650 $aIn vitro culture
650 $aPinus
650 $aAçúcar
650 $aCultura In Vitro
650 $aFungo
653 $aCristalografia
700 1 $aOLIVEIRA, C. F. de
700 1 $aMOURA, P. F.
700 1 $aOLIVEIRA, C. da S. P. de
700 1 $aHIROTA, B. C. K.
700 1 $aOLIVEIRA, M. de
700 1 $aRÜDIGER, A. L.
700 1 $aSÁ, E. L. de
700 1 $aMIGUEL, O. G.
700 1 $aAUER, C. G.
700 1 $aMIGUEL, M. D.
773 $tNatural Product Research$gv. 35, n. 21, p. 4206-4209, 2021.
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