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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
06/03/2024 |
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Data da última atualização: |
06/03/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GODOY, C. |
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Afiliação: |
CLAUDIA VIEIRA GODOY, CNPSO. |
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Título: |
Novas mutações da ferrugem. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Campo & Negócios. Grãos, v. 21, n. 252, p. 14-15, mar. 2024. |
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Idioma: |
Português |
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Thesagro: |
Ferrugem; Fungo; Soja. |
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Thesaurus Nal: |
Soybean rust. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 00414naa a2200157 a 4500
001 2162624
005 2024-03-06
008 2024 bl uuuu u00u1 u #d
100 1 $aGODOY, C.
245 $aNovas mutações da ferrugem.$h[electronic resource]
260 $c2024
650 $aSoybean rust
650 $aFerrugem
650 $aFungo
650 $aSoja
773 $tCampo & Negócios. Grãos$gv. 21, n. 252, p. 14-15, mar. 2024.
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Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
08/07/2015 |
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Data da última atualização: |
03/05/2017 |
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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: |
PINTO, M. dos S. T.; RIBEIRO, J. M.; ARAUJO, F. P. de; MELO, N. F. de; FERNANDES, K. V. S. |
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Afiliação: |
MARCIO DOS SANTOS TEIXEIRA PINTO, Universidade Federal do Tocantins - UFT; JULIANA MARTINS RIBEIRO, CPATSA; FRANCISCO PINHEIRO DE ARAUJO, CPATSA; NATONIEL FRANKLIN DE MELO, CPATSA; KÁTIA VALEVSKI SALES FERNANDES, Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF. |
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Título: |
Purification and characterization of a peroxidase present in xilopodium exsudates of umbu plants (Spondias tuberosa A.). |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
African Journal of Biotechnology, v. 14, n. 21, p. 1838-1845, 2015. |
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DOI: |
10.5897/AJB2015.14521 |
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Idioma: |
Inglês |
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Conteúdo: |
Umbu plants are drought resistant trees which are able to store water and several other substances into its adapted root, named xylopodium. The exsudate from xilopodium is a natural solution rich in salts, sugars and a little concentration of proteins. In this work, we report the purification of a peroxidase (POX) from umbu xilopodium exsudate by direct extraction from polyacrylamide electrophoresis gels. Umbu POX showed optimum activity at pHs around 6.0 to 7.0 and high thermal resistance after incubation at 7 0°C for 6 min. POX activity present in crude extracts was more heat - resistant than in its purified form. When assayed with metal ions, umbu POX activity was shown to be inhibited by Mn 2+ and stimulated by Ca 2+ and Mg 2+ ; it was also inhibited by sodium azid e (concentrations higher then 1 mM) and not inhibited by either EDTA or tropolone. POX Km values for guaiacol and methylcatechol substrates were 6.83 and 22.25, respectively. The enzyme is proposed to be a guaiacol peroxidase and was seen to be located at higher concentrations in the outermost layers of xylopodium tissue, such as the endoderm. |
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Palavras-Chave: |
Guaiacol peroxidase; Root enzyme; Spondia tuberosa; Tssue brownig. |
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Thesagro: |
Caatinga; Peroxidase; Umbu. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/126327/1/Juliana-2015.pdf
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Marc: |
LEADER 01940naa a2200265 a 4500
001 2019494
005 2017-05-03
008 2015 bl uuuu u00u1 u #d
024 7 $a10.5897/AJB2015.14521$2DOI
100 1 $aPINTO, M. dos S. T.
245 $aPurification and characterization of a peroxidase present in xilopodium exsudates of umbu plants (Spondias tuberosa A.).$h[electronic resource]
260 $c2015
520 $aUmbu plants are drought resistant trees which are able to store water and several other substances into its adapted root, named xylopodium. The exsudate from xilopodium is a natural solution rich in salts, sugars and a little concentration of proteins. In this work, we report the purification of a peroxidase (POX) from umbu xilopodium exsudate by direct extraction from polyacrylamide electrophoresis gels. Umbu POX showed optimum activity at pHs around 6.0 to 7.0 and high thermal resistance after incubation at 7 0°C for 6 min. POX activity present in crude extracts was more heat - resistant than in its purified form. When assayed with metal ions, umbu POX activity was shown to be inhibited by Mn 2+ and stimulated by Ca 2+ and Mg 2+ ; it was also inhibited by sodium azid e (concentrations higher then 1 mM) and not inhibited by either EDTA or tropolone. POX Km values for guaiacol and methylcatechol substrates were 6.83 and 22.25, respectively. The enzyme is proposed to be a guaiacol peroxidase and was seen to be located at higher concentrations in the outermost layers of xylopodium tissue, such as the endoderm.
650 $aCaatinga
650 $aPeroxidase
650 $aUmbu
653 $aGuaiacol peroxidase
653 $aRoot enzyme
653 $aSpondia tuberosa
653 $aTssue brownig
700 1 $aRIBEIRO, J. M.
700 1 $aARAUJO, F. P. de
700 1 $aMELO, N. F. de
700 1 $aFERNANDES, K. V. S.
773 $tAfrican Journal of Biotechnology$gv. 14, n. 21, p. 1838-1845, 2015.
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