Flavonoids from Pterocaulon alopecuroides with antibacterial activity
- Autores
- Alarcón, Silvia Rosana; Carrizo Flores, Roberto Ascencio; Ocampos, Soledad; Lucatti, Alejandro Francisco; Flores Galleguillo, Laura; Tonn, Carlos Eugenio; Sosa, Virginia Estela
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Three flavonoids, (2R,3R)-5,4′-dihydroxy-3′-O-methyl-7-(γ,γ-dimethylallyloxy)dihydroflavonol 1, (2R,3R)-5,7,4′-trihydroxy-3′-O-methyl-6-(α,α-dimethylallyl)dihydroflavonol 2, and (2R,3R)-5,7,4′-trihydroxy-6-(α,α-dimethylallyl)dihydroflavonol 3, together with three known flavonoids (4 – 6), were isolated from the aerial parts of Pterocaulon alopecuroides. The structures of the compounds were determined by mass and by 1 D and 2 D NMR spectroscopy. Screening of the antibacterial activity of all six compounds was conducted by a disc diffusion test against Bacillus cereus, Bacillus subtilis, Salmonella typhimurium and Proteus mirabilis. The minimum inhibitory concentration (MIC) of the active compounds (2, 3, 4, 6) was determined by a microdilution assay. These compounds were active only against both Gram (+) bacteria with MIC values ≤ 200 μg/mL.
Fil: Alarcón, Silvia Rosana. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Carrizo Flores, Roberto Ascencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina
Fil: Ocampos, Soledad. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Lucatti, Alejandro Francisco. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Flores Galleguillo, Laura. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Fil: Tonn, Carlos Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina
Fil: Sosa, Virginia Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina - Materia
-
Pterocaulon Alopecuroides
Asteraceae
Flavonoids
Antibacterial Activity - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/30523
Ver los metadatos del registro completo
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Flavonoids from Pterocaulon alopecuroides with antibacterial activityAlarcón, Silvia RosanaCarrizo Flores, Roberto AscencioOcampos, SoledadLucatti, Alejandro FranciscoFlores Galleguillo, LauraTonn, Carlos EugenioSosa, Virginia EstelaPterocaulon AlopecuroidesAsteraceaeFlavonoidsAntibacterial Activityhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Three flavonoids, (2R,3R)-5,4′-dihydroxy-3′-O-methyl-7-(γ,γ-dimethylallyloxy)dihydroflavonol 1, (2R,3R)-5,7,4′-trihydroxy-3′-O-methyl-6-(α,α-dimethylallyl)dihydroflavonol 2, and (2R,3R)-5,7,4′-trihydroxy-6-(α,α-dimethylallyl)dihydroflavonol 3, together with three known flavonoids (4 – 6), were isolated from the aerial parts of Pterocaulon alopecuroides. The structures of the compounds were determined by mass and by 1 D and 2 D NMR spectroscopy. Screening of the antibacterial activity of all six compounds was conducted by a disc diffusion test against Bacillus cereus, Bacillus subtilis, Salmonella typhimurium and Proteus mirabilis. The minimum inhibitory concentration (MIC) of the active compounds (2, 3, 4, 6) was determined by a microdilution assay. These compounds were active only against both Gram (+) bacteria with MIC values ≤ 200 μg/mL.Fil: Alarcón, Silvia Rosana. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Carrizo Flores, Roberto Ascencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Ocampos, Soledad. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: Lucatti, Alejandro Francisco. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Flores Galleguillo, Laura. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaFil: Tonn, Carlos Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; ArgentinaFil: Sosa, Virginia Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaGeorg Thieme Verlag Kg2008-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/30523Alarcón, Silvia Rosana; Carrizo Flores, Roberto Ascencio; Ocampos, Soledad; Lucatti, Alejandro Francisco; Flores Galleguillo, Laura; et al.; Flavonoids from Pterocaulon alopecuroides with antibacterial activity; Georg Thieme Verlag Kg; Planta Medica; 74; 12; 10-2008; 1463-14670032-09431439-0221CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.thieme-connect.de/DOI/DOI?10.1055/s-2008-1081331info:eu-repo/semantics/altIdentifier/doi/10.1055/s-2008-1081331info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:03:21Zoai:ri.conicet.gov.ar:11336/30523instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:03:21.582CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Flavonoids from Pterocaulon alopecuroides with antibacterial activity |
| title |
Flavonoids from Pterocaulon alopecuroides with antibacterial activity |
| spellingShingle |
Flavonoids from Pterocaulon alopecuroides with antibacterial activity Alarcón, Silvia Rosana Pterocaulon Alopecuroides Asteraceae Flavonoids Antibacterial Activity |
| title_short |
Flavonoids from Pterocaulon alopecuroides with antibacterial activity |
| title_full |
Flavonoids from Pterocaulon alopecuroides with antibacterial activity |
| title_fullStr |
Flavonoids from Pterocaulon alopecuroides with antibacterial activity |
| title_full_unstemmed |
Flavonoids from Pterocaulon alopecuroides with antibacterial activity |
| title_sort |
Flavonoids from Pterocaulon alopecuroides with antibacterial activity |
| dc.creator.none.fl_str_mv |
Alarcón, Silvia Rosana Carrizo Flores, Roberto Ascencio Ocampos, Soledad Lucatti, Alejandro Francisco Flores Galleguillo, Laura Tonn, Carlos Eugenio Sosa, Virginia Estela |
| author |
Alarcón, Silvia Rosana |
| author_facet |
Alarcón, Silvia Rosana Carrizo Flores, Roberto Ascencio Ocampos, Soledad Lucatti, Alejandro Francisco Flores Galleguillo, Laura Tonn, Carlos Eugenio Sosa, Virginia Estela |
| author_role |
author |
| author2 |
Carrizo Flores, Roberto Ascencio Ocampos, Soledad Lucatti, Alejandro Francisco Flores Galleguillo, Laura Tonn, Carlos Eugenio Sosa, Virginia Estela |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
Pterocaulon Alopecuroides Asteraceae Flavonoids Antibacterial Activity |
| topic |
Pterocaulon Alopecuroides Asteraceae Flavonoids Antibacterial Activity |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
Three flavonoids, (2R,3R)-5,4′-dihydroxy-3′-O-methyl-7-(γ,γ-dimethylallyloxy)dihydroflavonol 1, (2R,3R)-5,7,4′-trihydroxy-3′-O-methyl-6-(α,α-dimethylallyl)dihydroflavonol 2, and (2R,3R)-5,7,4′-trihydroxy-6-(α,α-dimethylallyl)dihydroflavonol 3, together with three known flavonoids (4 – 6), were isolated from the aerial parts of Pterocaulon alopecuroides. The structures of the compounds were determined by mass and by 1 D and 2 D NMR spectroscopy. Screening of the antibacterial activity of all six compounds was conducted by a disc diffusion test against Bacillus cereus, Bacillus subtilis, Salmonella typhimurium and Proteus mirabilis. The minimum inhibitory concentration (MIC) of the active compounds (2, 3, 4, 6) was determined by a microdilution assay. These compounds were active only against both Gram (+) bacteria with MIC values ≤ 200 μg/mL. Fil: Alarcón, Silvia Rosana. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Carrizo Flores, Roberto Ascencio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina Fil: Ocampos, Soledad. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina Fil: Lucatti, Alejandro Francisco. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Flores Galleguillo, Laura. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina Fil: Tonn, Carlos Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina Fil: Sosa, Virginia Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina |
| description |
Three flavonoids, (2R,3R)-5,4′-dihydroxy-3′-O-methyl-7-(γ,γ-dimethylallyloxy)dihydroflavonol 1, (2R,3R)-5,7,4′-trihydroxy-3′-O-methyl-6-(α,α-dimethylallyl)dihydroflavonol 2, and (2R,3R)-5,7,4′-trihydroxy-6-(α,α-dimethylallyl)dihydroflavonol 3, together with three known flavonoids (4 – 6), were isolated from the aerial parts of Pterocaulon alopecuroides. The structures of the compounds were determined by mass and by 1 D and 2 D NMR spectroscopy. Screening of the antibacterial activity of all six compounds was conducted by a disc diffusion test against Bacillus cereus, Bacillus subtilis, Salmonella typhimurium and Proteus mirabilis. The minimum inhibitory concentration (MIC) of the active compounds (2, 3, 4, 6) was determined by a microdilution assay. These compounds were active only against both Gram (+) bacteria with MIC values ≤ 200 μg/mL. |
| publishDate |
2008 |
| dc.date.none.fl_str_mv |
2008-10 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
publishedVersion |
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http://hdl.handle.net/11336/30523 Alarcón, Silvia Rosana; Carrizo Flores, Roberto Ascencio; Ocampos, Soledad; Lucatti, Alejandro Francisco; Flores Galleguillo, Laura; et al.; Flavonoids from Pterocaulon alopecuroides with antibacterial activity; Georg Thieme Verlag Kg; Planta Medica; 74; 12; 10-2008; 1463-1467 0032-0943 1439-0221 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/30523 |
| identifier_str_mv |
Alarcón, Silvia Rosana; Carrizo Flores, Roberto Ascencio; Ocampos, Soledad; Lucatti, Alejandro Francisco; Flores Galleguillo, Laura; et al.; Flavonoids from Pterocaulon alopecuroides with antibacterial activity; Georg Thieme Verlag Kg; Planta Medica; 74; 12; 10-2008; 1463-1467 0032-0943 1439-0221 CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
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info:eu-repo/semantics/altIdentifier/url/https://www.thieme-connect.de/DOI/DOI?10.1055/s-2008-1081331 info:eu-repo/semantics/altIdentifier/doi/10.1055/s-2008-1081331 |
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Georg Thieme Verlag Kg |
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Georg Thieme Verlag Kg |
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