Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)

Autores
Hernández, Marcelo Paulo; Murace, Mónica Adriana; Ringuelet, Jorge Abel; Petri, Inés; Gallo, Daniel José; Arambarri, Ana María
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Phytolacca tetramera Hauman “ombusillo” is an endemism of southeastern Buenos Aires province (Argentina). This species has fungicidal action against opportunistic pathogens of humans. In order to search natural alternatives for the control of diseases in plants caused by fungi, the objective was to evaluate the effects of aqueous and alcohol extracts of P. tetramera leaves on Colletotrichum gloeosporioides (Penz.) Sacc. This fungus has a wide distribution in different species with agricultural, forestry, and ornamental value. The antifungal activity of aqueous and ethanol leaf extracts was assessed in vitro against fungi. The fungus was subjected to two types of extracts already incorporated into the Potato Dextrose Agar (PDA) medium at 5-50% concentrations. The aqueous extract concentrations within the range 15-30% led to a decrease in the average diameter and speed of mycelium growth, while the range of 15-40% was the most effective in relation to a decrease in conidial production. Also, leaf alcohol extract inhibited the conidial production at concentrations of 5%, and had fungicidal action at concentrations of 15%. From “ombusillo” leaves a foam index of 250 was obtained. This high concentration of saponins would be at least one cause of the antifungal activity.
Phytolacca tetramera Hauman “ombusillo” es un endemismo del sudeste de la provincia de Buenos Aires (Argentina). Esta especie presenta acción fungicida contra patógenos oportunistas de humanos. Con el propósito de buscar alternativas naturales para el control de enfermedades en los vegetales, se planteó como objetivo evaluar el efecto de los extractos foliares acuoso y alcohólico de P. tetramera sobre el desarrollo del hongo Colletotrichum gloeosporioides (Penz.) Sacc., el cual tiene amplia distribución en especies de importancia agrícola, forestal y ornamental. El ensayo se realizó in vitro. El hongo fue cultivado en agar papa glucosado (APG), con aplicación del extracto en concentraciones del 5-50%. Las concentraciones del extracto acuoso del 15-30% produjeron una disminución del diámetro y velocidad media de crecimiento del micelio, mientras que las concentraciones del 15-40% fueron las más efectivas en el control de producción de conidios. El extracto alcohólico inhibió la producción de conidios con el 5% de concentración y con el 15% resultó fungicida. A partir de las hojas de “ombusillo” se obtuvo un índice de espuma de 250. Esta alta concentración de saponinas hace suponer que sería, al menos, una de las causas de la actividad antifúngica.
Facultad de Ciencias Agrarias y Forestales
Materia
Ciencias Agrarias
antifungal activity in vitro
biological control
“ombusillo”
Phytolaccaceae
saponins
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/103903

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spelling Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)Efecto de los extractos acuoso y alcohólico de la hoja de Phytolacca tetramera (Phytolaccaceae) sobre Colletotrichum gloeosporioides (Ascomycota)Hernández, Marcelo PauloMurace, Mónica AdrianaRinguelet, Jorge AbelPetri, InésGallo, Daniel JoséArambarri, Ana MaríaCiencias Agrariasantifungal activity in vitrobiological control“ombusillo”PhytolaccaceaesaponinsPhytolacca tetramera Hauman “ombusillo” is an endemism of southeastern Buenos Aires province (Argentina). This species has fungicidal action against opportunistic pathogens of humans. In order to search natural alternatives for the control of diseases in plants caused by fungi, the objective was to evaluate the effects of aqueous and alcohol extracts of P. tetramera leaves on Colletotrichum gloeosporioides (Penz.) Sacc. This fungus has a wide distribution in different species with agricultural, forestry, and ornamental value. The antifungal activity of aqueous and ethanol leaf extracts was assessed in vitro against fungi. The fungus was subjected to two types of extracts already incorporated into the Potato Dextrose Agar (PDA) medium at 5-50% concentrations. The aqueous extract concentrations within the range 15-30% led to a decrease in the average diameter and speed of mycelium growth, while the range of 15-40% was the most effective in relation to a decrease in conidial production. Also, leaf alcohol extract inhibited the conidial production at concentrations of 5%, and had fungicidal action at concentrations of 15%. From “ombusillo” leaves a foam index of 250 was obtained. This high concentration of saponins would be at least one cause of the antifungal activity.Phytolacca tetramera Hauman “ombusillo” es un endemismo del sudeste de la provincia de Buenos Aires (Argentina). Esta especie presenta acción fungicida contra patógenos oportunistas de humanos. Con el propósito de buscar alternativas naturales para el control de enfermedades en los vegetales, se planteó como objetivo evaluar el efecto de los extractos foliares acuoso y alcohólico de P. tetramera sobre el desarrollo del hongo Colletotrichum gloeosporioides (Penz.) Sacc., el cual tiene amplia distribución en especies de importancia agrícola, forestal y ornamental. El ensayo se realizó in vitro. El hongo fue cultivado en agar papa glucosado (APG), con aplicación del extracto en concentraciones del 5-50%. Las concentraciones del extracto acuoso del 15-30% produjeron una disminución del diámetro y velocidad media de crecimiento del micelio, mientras que las concentraciones del 15-40% fueron las más efectivas en el control de producción de conidios. El extracto alcohólico inhibió la producción de conidios con el 5% de concentración y con el 15% resultó fungicida. A partir de las hojas de “ombusillo” se obtuvo un índice de espuma de 250. Esta alta concentración de saponinas hace suponer que sería, al menos, una de las causas de la actividad antifúngica.Facultad de Ciencias Agrarias y Forestales2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf201-209http://sedici.unlp.edu.ar/handle/10915/103903enginfo:eu-repo/semantics/altIdentifier/issn/0373-580Xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:22:37Zoai:sedici.unlp.edu.ar:10915/103903Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:22:38.215SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)
Efecto de los extractos acuoso y alcohólico de la hoja de Phytolacca tetramera (Phytolaccaceae) sobre Colletotrichum gloeosporioides (Ascomycota)
title Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)
spellingShingle Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)
Hernández, Marcelo Paulo
Ciencias Agrarias
antifungal activity in vitro
biological control
“ombusillo”
Phytolaccaceae
saponins
title_short Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)
title_full Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)
title_fullStr Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)
title_full_unstemmed Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)
title_sort Effect of aqueous and alcohol extracts of <i>Phytolacca tetramera</i> (Phytolaccaceae) leaves on <i>Colletotrichum gloeosporioides</i> (Ascomycota)
dc.creator.none.fl_str_mv Hernández, Marcelo Paulo
Murace, Mónica Adriana
Ringuelet, Jorge Abel
Petri, Inés
Gallo, Daniel José
Arambarri, Ana María
author Hernández, Marcelo Paulo
author_facet Hernández, Marcelo Paulo
Murace, Mónica Adriana
Ringuelet, Jorge Abel
Petri, Inés
Gallo, Daniel José
Arambarri, Ana María
author_role author
author2 Murace, Mónica Adriana
Ringuelet, Jorge Abel
Petri, Inés
Gallo, Daniel José
Arambarri, Ana María
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Agrarias
antifungal activity in vitro
biological control
“ombusillo”
Phytolaccaceae
saponins
topic Ciencias Agrarias
antifungal activity in vitro
biological control
“ombusillo”
Phytolaccaceae
saponins
dc.description.none.fl_txt_mv Phytolacca tetramera Hauman “ombusillo” is an endemism of southeastern Buenos Aires province (Argentina). This species has fungicidal action against opportunistic pathogens of humans. In order to search natural alternatives for the control of diseases in plants caused by fungi, the objective was to evaluate the effects of aqueous and alcohol extracts of P. tetramera leaves on Colletotrichum gloeosporioides (Penz.) Sacc. This fungus has a wide distribution in different species with agricultural, forestry, and ornamental value. The antifungal activity of aqueous and ethanol leaf extracts was assessed in vitro against fungi. The fungus was subjected to two types of extracts already incorporated into the Potato Dextrose Agar (PDA) medium at 5-50% concentrations. The aqueous extract concentrations within the range 15-30% led to a decrease in the average diameter and speed of mycelium growth, while the range of 15-40% was the most effective in relation to a decrease in conidial production. Also, leaf alcohol extract inhibited the conidial production at concentrations of 5%, and had fungicidal action at concentrations of 15%. From “ombusillo” leaves a foam index of 250 was obtained. This high concentration of saponins would be at least one cause of the antifungal activity.
Phytolacca tetramera Hauman “ombusillo” es un endemismo del sudeste de la provincia de Buenos Aires (Argentina). Esta especie presenta acción fungicida contra patógenos oportunistas de humanos. Con el propósito de buscar alternativas naturales para el control de enfermedades en los vegetales, se planteó como objetivo evaluar el efecto de los extractos foliares acuoso y alcohólico de P. tetramera sobre el desarrollo del hongo Colletotrichum gloeosporioides (Penz.) Sacc., el cual tiene amplia distribución en especies de importancia agrícola, forestal y ornamental. El ensayo se realizó in vitro. El hongo fue cultivado en agar papa glucosado (APG), con aplicación del extracto en concentraciones del 5-50%. Las concentraciones del extracto acuoso del 15-30% produjeron una disminución del diámetro y velocidad media de crecimiento del micelio, mientras que las concentraciones del 15-40% fueron las más efectivas en el control de producción de conidios. El extracto alcohólico inhibió la producción de conidios con el 5% de concentración y con el 15% resultó fungicida. A partir de las hojas de “ombusillo” se obtuvo un índice de espuma de 250. Esta alta concentración de saponinas hace suponer que sería, al menos, una de las causas de la actividad antifúngica.
Facultad de Ciencias Agrarias y Forestales
description Phytolacca tetramera Hauman “ombusillo” is an endemism of southeastern Buenos Aires province (Argentina). This species has fungicidal action against opportunistic pathogens of humans. In order to search natural alternatives for the control of diseases in plants caused by fungi, the objective was to evaluate the effects of aqueous and alcohol extracts of P. tetramera leaves on Colletotrichum gloeosporioides (Penz.) Sacc. This fungus has a wide distribution in different species with agricultural, forestry, and ornamental value. The antifungal activity of aqueous and ethanol leaf extracts was assessed in vitro against fungi. The fungus was subjected to two types of extracts already incorporated into the Potato Dextrose Agar (PDA) medium at 5-50% concentrations. The aqueous extract concentrations within the range 15-30% led to a decrease in the average diameter and speed of mycelium growth, while the range of 15-40% was the most effective in relation to a decrease in conidial production. Also, leaf alcohol extract inhibited the conidial production at concentrations of 5%, and had fungicidal action at concentrations of 15%. From “ombusillo” leaves a foam index of 250 was obtained. This high concentration of saponins would be at least one cause of the antifungal activity.
publishDate 2013
dc.date.none.fl_str_mv 2013
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