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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
03/10/2017 |
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Data da última atualização: |
16/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CASTANHEDE FILHO, A. J.; SANTOS, L. S.; GUILHON, G. M. S. P.; MORAES, R. C.; SANTOS, R. A. dos; SOUZA FILHO, A. P. da S.; FELIZZOLA, J. F. |
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Afiliação: |
Antonio Jose Cantanhede Filho, Federal Institute of Education Science and Technology of Maranhao; Lourivaldo Silva Santos, UFPA; Giselle Maria Skelding Pinheiro Guilhon, UFPA; Raissa Costa Moraes, UFPA; Reinaldo Araujo dos Santos, UFPA; ANTONIO PEDRO DA SILVA SOUZA FILHO, CPATU; JULIANA FEITOSA FELIZZOLA, CPATU. |
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Título: |
Identified substances from the leaves of Tephrosia cinerea (Leguminoseae) crude extracts and their phytotoxic effects. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
International Journal of Life-Sciences Scientific Research, v. 3, n. 4, p. 1137-1141, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
This research evaluated the phytotoxic effect of the hexane (H.E), ethyl acetate (EtOAc.E) and methanolic (MeOH.E) crude extracts of the Tephrosia cinerea leaves on the seed germination of seeds using two weed species, Mimosa pudica (Malícia) and Senna obtusifolia (Mata-pasto), as test plants. The compounds were isolated using classic chromatography techniques and the structural elucidation of the compounds was performed by 1H and 13C NMR (1D and 2D) techniques. The ethyl acetate and methanolic extracts of T. cinerea were the most active, as they inhibited the germination of seeds in 92.0% and 81.0% respectively of malícia and mata-pasto, the ethyl acetate extract inhibited germination by 81.0% and the methanolic extract by 32.0%. The chemical study led to isolation of cinnamic acid and rotenone from the ethyl acetate extract, and mixture containing triacylglycerol and ß-sitosterol fatty acids from the hexane extract and the disaccharide trehalose from methanolic extract. |
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Palavras-Chave: |
Espécies invasivas; Extratos brutos. |
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Thesagro: |
Fitotoxicidade; Rotenona. |
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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/164582/1/TephrosiaCinerea.pdf
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Marc: |
LEADER 01784naa a2200241 a 4500
001 2076583
005 2022-05-16
008 2017 bl uuuu u00u1 u #d
100 1 $aCASTANHEDE FILHO, A. J.
245 $aIdentified substances from the leaves of Tephrosia cinerea (Leguminoseae) crude extracts and their phytotoxic effects.$h[electronic resource]
260 $c2017
520 $aThis research evaluated the phytotoxic effect of the hexane (H.E), ethyl acetate (EtOAc.E) and methanolic (MeOH.E) crude extracts of the Tephrosia cinerea leaves on the seed germination of seeds using two weed species, Mimosa pudica (Malícia) and Senna obtusifolia (Mata-pasto), as test plants. The compounds were isolated using classic chromatography techniques and the structural elucidation of the compounds was performed by 1H and 13C NMR (1D and 2D) techniques. The ethyl acetate and methanolic extracts of T. cinerea were the most active, as they inhibited the germination of seeds in 92.0% and 81.0% respectively of malícia and mata-pasto, the ethyl acetate extract inhibited germination by 81.0% and the methanolic extract by 32.0%. The chemical study led to isolation of cinnamic acid and rotenone from the ethyl acetate extract, and mixture containing triacylglycerol and ß-sitosterol fatty acids from the hexane extract and the disaccharide trehalose from methanolic extract.
650 $aFitotoxicidade
650 $aRotenona
653 $aEspécies invasivas
653 $aExtratos brutos
700 1 $aSANTOS, L. S.
700 1 $aGUILHON, G. M. S. P.
700 1 $aMORAES, R. C.
700 1 $aSANTOS, R. A. dos
700 1 $aSOUZA FILHO, A. P. da S.
700 1 $aFELIZZOLA, J. F.
773 $tInternational Journal of Life-Sciences Scientific Research$gv. 3, n. 4, p. 1137-1141, 2017.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
30/12/2019 |
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Data da última atualização: |
30/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
BIGI, M.; VAZQUEZ, C. L.; CASTELÃO, A. B. C.; GARCÍA, E. A.; CATALDI, A. A.; JACKSON, M.; MAcNEIL, M.; SORIA, M.; ZUMÁRRAGA, M. J.; MATIAS, C.; GAGO, G.; BLANCO, F. C.; NISHIBEF, C.; ALMEIDA, N. F.; ARAUJO, F. R.; BIGI, F. |
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Afiliação: |
Mercedes Bigi, Universidad de Buenos Aires, Facultad de Agronomía, Cátedra de Microbiología Agrícola, INBA-CONICET; Cristina Lourdes Vazquez, Universidad de Buenos Aires, Facultad de Agronomía, Cátedra de Microbiología Agrícola, INBA-CONICET; Ana Beatriz C Castelão, Universidad de Buenos Aires, Facultad de Agronomía, Cátedra de Microbiología Agrícola, INBA-CONICET; Elizabeth Andrea García, Instituto de Biotecnología, IABIMO, CICVyA/INTA; Angel A Cataldi, Instituto de Biotecnología, IABIMO, CICVyA/INTA; Mary Jackson, Colorado State University, Dept. of Microbiology, Immunology and Pathology; Michael McNeil, Colorado State University, Dept. of Microbiology, Immunology and Pathology; Marcelo Soria, Universidad de Buenos Aires, Facultad de Agronomía, Cátedra de Microbiología Agrícola, INBA-CONICET; Martín J Zumárraga, Instituto de Biotecnología, IABIMO, CICVyA/INTA; Matias Cabruja, Laboratory of Physiology and Genetics of Actinomycetes, Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario; Gabriela Gago, Laboratory of Physiology and Genetics of Actinomycetes, Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario; Federico C Blanco, Instituto de Biotecnología, IABIMO, CICVyA/INTA; Christiane Nishibef, Universidade Federal de Mato Grosso do Sul - UFMS/Faculdade de Computação; Nalvo F Almeida, Universidade Federal de Mato Grosso do Sul - UFMS/Faculdade de Computação; FLABIO RIBEIRO DE ARAUJO, CNPGC; Fabiana Bigi, Instituto de Biotecnología, IABIMO, CICVyA/INTA. |
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Título: |
Analysing nonsynonymous mutations between two Mycobacterium bovis strains with contrasting pathogenic profiles. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Veterinary Microbiology, v. 239, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Mycobacterium bovis (M. bovis) is the causative agent of bovine tuberculosis, a chronic infectious disease that can affect cattle, other domesticated species, wild animals and humans. This disease produces important economic losses worldwide. Two M. bovis strains (04-303 and 534) have been isolated in Argentina. Whereas the 04-303 strain was isolated from a wild boar, the 534 strain was obtained from cattle. In a previous study, six weeks after infection, the 04-303 strain induced 100% mortality in mice. By contrast, mice infected with the 534 strain survived, with limited tissue damage, after four months. In this study we compared all predictive proteins encoded in both M. bovis genomes. The comparative analysis revealed 141 polymorphic proteins between both strains. From these proteins, nine virulence proteins showed polymorphisms in 04-303, whereas five did it in the 534 strain. Remarkably, both strains contained a high level of polymorphism in proteins related to phthiocerol dimycocerosate (PDIM) synthesis or transport. Further experimental evidence indicated that only mutations in the 534 strain have an impact on PDIM synthesis. The observed reduction in PDIM content in the 534 strain, together with its low capacity to induce phagosome arrest, may be associated with the reported deficiency of this strain to replicate and survive inside bovine macrophages. The findings of this study could contribute to a better understanding of pathogenicity and virulence aspects of M. bovis, which is essential for further studies aiming at developing new vaccines and diagnostic techniques for bovines. MenosMycobacterium bovis (M. bovis) is the causative agent of bovine tuberculosis, a chronic infectious disease that can affect cattle, other domesticated species, wild animals and humans. This disease produces important economic losses worldwide. Two M. bovis strains (04-303 and 534) have been isolated in Argentina. Whereas the 04-303 strain was isolated from a wild boar, the 534 strain was obtained from cattle. In a previous study, six weeks after infection, the 04-303 strain induced 100% mortality in mice. By contrast, mice infected with the 534 strain survived, with limited tissue damage, after four months. In this study we compared all predictive proteins encoded in both M. bovis genomes. The comparative analysis revealed 141 polymorphic proteins between both strains. From these proteins, nine virulence proteins showed polymorphisms in 04-303, whereas five did it in the 534 strain. Remarkably, both strains contained a high level of polymorphism in proteins related to phthiocerol dimycocerosate (PDIM) synthesis or transport. Further experimental evidence indicated that only mutations in the 534 strain have an impact on PDIM synthesis. The observed reduction in PDIM content in the 534 strain, together with its low capacity to induce phagosome arrest, may be associated with the reported deficiency of this strain to replicate and survive inside bovine macrophages. The findings of this study could contribute to a better understanding of pathogenicity and virulence aspects of M. b... Mostrar Tudo |
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Palavras-Chave: |
Mutations. |
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Thesagro: |
Gene. |
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Thesaurus NAL: |
Genome; Mycobacterium bovis BCG; Virulence. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/207981/1/Analysing-nonsynonymous-mutations.pdf
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Marc: |
LEADER 02585naa a2200361 a 4500
001 2117921
005 2019-12-30
008 2019 bl uuuu u00u1 u #d
100 1 $aBIGI, M.
245 $aAnalysing nonsynonymous mutations between two Mycobacterium bovis strains with contrasting pathogenic profiles.$h[electronic resource]
260 $c2019
520 $aMycobacterium bovis (M. bovis) is the causative agent of bovine tuberculosis, a chronic infectious disease that can affect cattle, other domesticated species, wild animals and humans. This disease produces important economic losses worldwide. Two M. bovis strains (04-303 and 534) have been isolated in Argentina. Whereas the 04-303 strain was isolated from a wild boar, the 534 strain was obtained from cattle. In a previous study, six weeks after infection, the 04-303 strain induced 100% mortality in mice. By contrast, mice infected with the 534 strain survived, with limited tissue damage, after four months. In this study we compared all predictive proteins encoded in both M. bovis genomes. The comparative analysis revealed 141 polymorphic proteins between both strains. From these proteins, nine virulence proteins showed polymorphisms in 04-303, whereas five did it in the 534 strain. Remarkably, both strains contained a high level of polymorphism in proteins related to phthiocerol dimycocerosate (PDIM) synthesis or transport. Further experimental evidence indicated that only mutations in the 534 strain have an impact on PDIM synthesis. The observed reduction in PDIM content in the 534 strain, together with its low capacity to induce phagosome arrest, may be associated with the reported deficiency of this strain to replicate and survive inside bovine macrophages. The findings of this study could contribute to a better understanding of pathogenicity and virulence aspects of M. bovis, which is essential for further studies aiming at developing new vaccines and diagnostic techniques for bovines.
650 $aGenome
650 $aMycobacterium bovis BCG
650 $aVirulence
650 $aGene
653 $aMutations
700 1 $aVAZQUEZ, C. L.
700 1 $aCASTELÃO, A. B. C.
700 1 $aGARCÍA, E. A.
700 1 $aCATALDI, A. A.
700 1 $aJACKSON, M.
700 1 $aMAcNEIL, M.
700 1 $aSORIA, M.
700 1 $aZUMÁRRAGA, M. J.
700 1 $aMATIAS, C.
700 1 $aGAGO, G.
700 1 $aBLANCO, F. C.
700 1 $aNISHIBEF, C.
700 1 $aALMEIDA, N. F.
700 1 $aARAUJO, F. R.
700 1 $aBIGI, F.
773 $tVeterinary Microbiology$gv. 239, 2019.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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