Estudo morfoanatômico, avaliação da atividade biológica e composição química e variabilidade do óleo essencial da Memora nodosa (SILVA MANSO) Miers - Bignoniaceae
Ano de defesa: | 2008 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Goiás
|
Programa de Pós-Graduação: |
Doutorado em Biologia
|
Departamento: |
Ciencias Biologicas
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.bc.ufg.br/tede/handle/tde/1017 |
Resumo: | Memora nodosa (Silva Manso) Miers is a native savannah plant popularly used for wound cicatrization (leaves and stems) and for treating abdominal pains and scabies (roots). The purpose of this work is to study the morphoanatomy and determine the composition and variability of the constituents of the essential oil obtained from the M. nodosa leaves, as well as its antimicrobial, leishmanicidal, cicatrizing activity and toxicity. Morphologically, M. nodosa is a bush with clumps of straight or curved stems. It has a deep, pivoting root and presents a chandelier shaped structure in the upper part from where the stems sprout. It presents compound, bipinnate, imparipinnate, oppositely crossed leaves. The inflorescence is racemose with golden-yellow flowers. It is characterized by septifrague capsule type fruit with replum and winged seeds. Anatomically the leaves are hypostomatic with predominantly paracytic stomates. The epidermis is uniseriate with a thick cuticle and glandular trichomes throughout the structure of the young leaves. The essential oil from the M. nodosa leaves collected from seven different locations in the Brazilian savannah was analyzed by GC(FID) and GC/MS. Five substances were identified, benzaldehyde and 1- octene-3-ol were the main constituents. Two different classes regarding sampling location and constituents were identified by means of the principal component and grouping analyses. The antimicrobial activity of the ethanolic extracts from leaves, stems, roots and of essential oil from leaves, and the fractions obtained from the roots, were assessed against Grampositive and Gram-negative bacteria, as well as the Candida albicans fungus, using well diffusion test and the agar dilution method. The ethanolic extract from the roots presented small antimicrobial activity while the hexane and dichloromethane fractions obtained from this extract presented MIC 0.39 mg/mL and 0.78 mg/mL against a number of Gram-positive bacteria and the Candida albicans fungus. The essential oil presented MIC 0.78 mg/mL to 1.56 mg/mL. The antimicrobial activity of the essential oil was the result of synergic action between the benzaldehyde, 1-octene-3-ol, 1-octanol, linalool and the mandelonitrile, constituents of the essential oil. Promastigote forms of Leishmania chagasi were used for the leishmanicidal assessment and it was verified that the ethanol extract from the leaves presented an IC50 of 93.2 μg/mL and from the roots presented an IC50 of 95.87 μg/mL. The hexane fraction from the roots presented an IC50 of 13.51μg/mL. A mixture of β-sitosterol and stigmasterol was isolated and identified in the hexane fraction obtained from the ethanol extract from the roots. This mixture was tested against L. chagasi resulting in an IC50 of 69.79 μg/mL. The cicatrizing activity of the ethanol extract from the leaves and roots was assessed on skin wounds in rats, and it be noted reepithelization occurred faster only in the group treated with a 2% aqueous solution of the ethanol extract from the roots. This action may be related to the alantoine isolated in the ethanol extract from the roots. The toxicity assessment of the ethanol extracts from roots, leaves and hexane fraction obtained from M . nodosa roots, tested on rats, mice and Artemia salina proved that this plant is not potentially toxic. In conclusion, according to the tests performed, the best results were obtained with ethanolic extract and it presented antimicrobial, wound cicatrization and leishmanicidal activities. Hexane and dichloromethane fractions obtained from roots extract presented antimicrobial activity against Gram-positive bacteria and the Candida albicans fungus and hexane fraction strong leishmanicidal activity. |
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PAULA, José Realino dehttp://lattes.cnpq.br/3191837532986128http://lattes.cnpq.br/1663950324520336TRESVENZOL, Leonice Manrique Faustino2014-07-29T15:10:33Z2010-08-052008-12-18TRESVENZOL, Leonice Manrique Faustino. Morphological and anatomical study, evaluation of biological activity and chemical composition and variability of essential oil Memora Nodosa (Silva Manso) Miers - Bignoniaceae. 2008. 144 f. Tese (Doutorado em Ciencias Biologicas) - Universidade Federal de Goiás, Goiânia, 2008.http://repositorio.bc.ufg.br/tede/handle/tde/1017Memora nodosa (Silva Manso) Miers is a native savannah plant popularly used for wound cicatrization (leaves and stems) and for treating abdominal pains and scabies (roots). The purpose of this work is to study the morphoanatomy and determine the composition and variability of the constituents of the essential oil obtained from the M. nodosa leaves, as well as its antimicrobial, leishmanicidal, cicatrizing activity and toxicity. Morphologically, M. nodosa is a bush with clumps of straight or curved stems. It has a deep, pivoting root and presents a chandelier shaped structure in the upper part from where the stems sprout. It presents compound, bipinnate, imparipinnate, oppositely crossed leaves. The inflorescence is racemose with golden-yellow flowers. It is characterized by septifrague capsule type fruit with replum and winged seeds. Anatomically the leaves are hypostomatic with predominantly paracytic stomates. The epidermis is uniseriate with a thick cuticle and glandular trichomes throughout the structure of the young leaves. The essential oil from the M. nodosa leaves collected from seven different locations in the Brazilian savannah was analyzed by GC(FID) and GC/MS. Five substances were identified, benzaldehyde and 1- octene-3-ol were the main constituents. Two different classes regarding sampling location and constituents were identified by means of the principal component and grouping analyses. The antimicrobial activity of the ethanolic extracts from leaves, stems, roots and of essential oil from leaves, and the fractions obtained from the roots, were assessed against Grampositive and Gram-negative bacteria, as well as the Candida albicans fungus, using well diffusion test and the agar dilution method. The ethanolic extract from the roots presented small antimicrobial activity while the hexane and dichloromethane fractions obtained from this extract presented MIC 0.39 mg/mL and 0.78 mg/mL against a number of Gram-positive bacteria and the Candida albicans fungus. The essential oil presented MIC 0.78 mg/mL to 1.56 mg/mL. The antimicrobial activity of the essential oil was the result of synergic action between the benzaldehyde, 1-octene-3-ol, 1-octanol, linalool and the mandelonitrile, constituents of the essential oil. Promastigote forms of Leishmania chagasi were used for the leishmanicidal assessment and it was verified that the ethanol extract from the leaves presented an IC50 of 93.2 μg/mL and from the roots presented an IC50 of 95.87 μg/mL. The hexane fraction from the roots presented an IC50 of 13.51μg/mL. A mixture of β-sitosterol and stigmasterol was isolated and identified in the hexane fraction obtained from the ethanol extract from the roots. This mixture was tested against L. chagasi resulting in an IC50 of 69.79 μg/mL. The cicatrizing activity of the ethanol extract from the leaves and roots was assessed on skin wounds in rats, and it be noted reepithelization occurred faster only in the group treated with a 2% aqueous solution of the ethanol extract from the roots. This action may be related to the alantoine isolated in the ethanol extract from the roots. The toxicity assessment of the ethanol extracts from roots, leaves and hexane fraction obtained from M . nodosa roots, tested on rats, mice and Artemia salina proved that this plant is not potentially toxic. In conclusion, according to the tests performed, the best results were obtained with ethanolic extract and it presented antimicrobial, wound cicatrization and leishmanicidal activities. Hexane and dichloromethane fractions obtained from roots extract presented antimicrobial activity against Gram-positive bacteria and the Candida albicans fungus and hexane fraction strong leishmanicidal activity.A Memora nodosa (Silva Manso) Miers é uma planta nativa do Cerrado e utilizada popularmente na cicatrização de feridas (folhas e caules) e no tratamento de dores abdominais e sarnas (raízes). Este trabalho objetivou realizar o estudo morfoanatômico, determinar a composição química e a variabilidade dos constituintes do óleo essencial obtido das folhas e avaliar a atividade antimicrobiana, leishmanicida e cicatrizante e a toxicidade dos extratos e frações da M. nodosa. Morfologicamente, observou-se que a M. nodosa é um arbusto com caules retos ou escandentes reunidos em touceiras. A raiz é pivotante, profunda e apresenta, na parte superior, uma estrutura em candelabro de onde se originam os caules. As folhas são opostas cruzadas, recompostas, bipinadas, imparipinadas, com foliólulos lanceolados. A inflorescência é racemosa com flores de cor amarelo-ouro. O fruto é do tipo cápsula septífraga com abertura longitudinal e sementes aladas. Anatomicamente, as folhas são hipoestomáticas, com estômatos predominantemente paracíticos. A epiderme é unisseriada, com cutícula espessa em todas as estruturas das folhas. Tricomas glandulares e tectores são observados nas folhas e caules jovens. O óleo essencial das folhas da M. nodosa coletadas em sete localidades diferentes do Cerrado brasileiro foi analisado por CG (DIC) e CG/EM. Cinco substâncias foram identificadas, sendo o benzaldeído e o 1-octen-3-ol os principais constituintes. A análise dos componentes principais e dos agrupamentos possibilitou a distinção de duas classes diferenciadas em relação ao local da amostragem e aos constituintes. As atividades antimicrobianas dos extratos etanólicos das folhas, dos caules e das raízes, do óleo essencial das folhas e das frações obtidas das raízes foram avaliadas usando teste de difusão em poço e o método de diluição em ágar. O extrato etanólico das raízes apresentou atividade antimicrobiana fraca, enquanto as frações hexano e diclorometano, obtidas desse extrato, mostraram atividade de forte a moderada contra várias bactérias Gram-positivas e contra o fungo Candida albicans. O óleo essencial obtido das folhas apresentou CIM de 0,78 mg/mL a 1,56 mg/mL contra bactérias Gram-positivas e Candida albicans. Constatou-se que a atividade antimicrobiana do óleo essencial se deve a ação sinérgica entre o benzaldeído, o 1- octen-3-ol, o 1-octanol, o linalol e a mandelonitrila, constituintes do óleo essencial. A atividade cicatrizante dos extratos etanólicos das folhas e raízes foi avaliada em feridas cutâneas de ratos e observou-se uma aceleração na reepitelização apenas no grupo tratado com solução aquosa a 2% do extrato etanólico das raízes. Essa ação pode estar relacionada com a alantoína, isolada do extrato etanólico das raízes. Na avaliação da atividade leihsmanicida, empregaram-se culturas com formas promastigotas de Leishmania chagasi e verificou-se que o extrato etanólico das folhas apresentou IC50 de 93,2 μg/mL e as raízes IC50 de 95,87 μg/mL. A fração hexano obtida das raízes apresentou IC50 de 13,51 μg/mL. Da fração hexano obtida do extrato etanólico das raízes foi isolado e identificado uma mistura de β-sitosterol e estigmasterol. Essa mistura foi testada contra L. chagasi, obtendo-se IC50 de 69,79 μg/mL. A avaliação da toxicidade aguda dos extratos etanólicos das folhas, das raízes e da fração hexano obtidas das raízes empregando como modelos experimentais ratos e camundongos e o teste de citotoxicidade utilizando Artemia salina mostraram que essa planta não é potencialmente tóxica. Conclui-se que os melhores resultados foram obtido com extrato etanólico das raízes, que apresentou atividade antimicrobiana, cicatrizante e leishmanicida.As frações hexano e diclorometano, obtidas das raízes, apresentaram bom potencial antimicrobiano contra bactérias Gram-positivas e o fungo C. albicans e a fração hexano forte atividade leishmnicida.Made available in DSpace on 2014-07-29T15:10:33Z (GMT). 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dc.title.por.fl_str_mv |
Estudo morfoanatômico, avaliação da atividade biológica e composição química e variabilidade do óleo essencial da Memora nodosa (SILVA MANSO) Miers - Bignoniaceae |
dc.title.alternative.eng.fl_str_mv |
Morphological and anatomical study, evaluation of biological activity and chemical composition and variability of essential oil Memora Nodosa (Silva Manso) Miers - Bignoniaceae |
title |
Estudo morfoanatômico, avaliação da atividade biológica e composição química e variabilidade do óleo essencial da Memora nodosa (SILVA MANSO) Miers - Bignoniaceae |
spellingShingle |
Estudo morfoanatômico, avaliação da atividade biológica e composição química e variabilidade do óleo essencial da Memora nodosa (SILVA MANSO) Miers - Bignoniaceae TRESVENZOL, Leonice Manrique Faustino Plantas medicinais Morfoanatomia Cicatrização de feridas Atividade leishmanicida Atividade antimicrobiana Óleos essenciais 1.Plantas medicinais 2.Atividade biológica 3.Anatomia vegetal 4.Memora nodosa 5.Cicatrização de feridas 6.Atividade antimicrobiana 7.Óleos essenciais Medical plants Morphoanatomy Wound cicatrization Leishmanicidal activity Antimicrobial activity Essential oils CNPQ::CIENCIAS BIOLOGICAS::BIOQUIMICA::BIOLOGIA MOLECULAR |
title_short |
Estudo morfoanatômico, avaliação da atividade biológica e composição química e variabilidade do óleo essencial da Memora nodosa (SILVA MANSO) Miers - Bignoniaceae |
title_full |
Estudo morfoanatômico, avaliação da atividade biológica e composição química e variabilidade do óleo essencial da Memora nodosa (SILVA MANSO) Miers - Bignoniaceae |
title_fullStr |
Estudo morfoanatômico, avaliação da atividade biológica e composição química e variabilidade do óleo essencial da Memora nodosa (SILVA MANSO) Miers - Bignoniaceae |
title_full_unstemmed |
Estudo morfoanatômico, avaliação da atividade biológica e composição química e variabilidade do óleo essencial da Memora nodosa (SILVA MANSO) Miers - Bignoniaceae |
title_sort |
Estudo morfoanatômico, avaliação da atividade biológica e composição química e variabilidade do óleo essencial da Memora nodosa (SILVA MANSO) Miers - Bignoniaceae |
author |
TRESVENZOL, Leonice Manrique Faustino |
author_facet |
TRESVENZOL, Leonice Manrique Faustino |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
PAULA, José Realino de |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3191837532986128 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1663950324520336 |
dc.contributor.author.fl_str_mv |
TRESVENZOL, Leonice Manrique Faustino |
contributor_str_mv |
PAULA, José Realino de |
dc.subject.por.fl_str_mv |
Plantas medicinais Morfoanatomia Cicatrização de feridas Atividade leishmanicida Atividade antimicrobiana Óleos essenciais 1.Plantas medicinais 2.Atividade biológica 3.Anatomia vegetal 4.Memora nodosa 5.Cicatrização de feridas 6.Atividade antimicrobiana 7.Óleos essenciais |
topic |
Plantas medicinais Morfoanatomia Cicatrização de feridas Atividade leishmanicida Atividade antimicrobiana Óleos essenciais 1.Plantas medicinais 2.Atividade biológica 3.Anatomia vegetal 4.Memora nodosa 5.Cicatrização de feridas 6.Atividade antimicrobiana 7.Óleos essenciais Medical plants Morphoanatomy Wound cicatrization Leishmanicidal activity Antimicrobial activity Essential oils CNPQ::CIENCIAS BIOLOGICAS::BIOQUIMICA::BIOLOGIA MOLECULAR |
dc.subject.eng.fl_str_mv |
Medical plants Morphoanatomy Wound cicatrization Leishmanicidal activity Antimicrobial activity Essential oils |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS BIOLOGICAS::BIOQUIMICA::BIOLOGIA MOLECULAR |
description |
Memora nodosa (Silva Manso) Miers is a native savannah plant popularly used for wound cicatrization (leaves and stems) and for treating abdominal pains and scabies (roots). The purpose of this work is to study the morphoanatomy and determine the composition and variability of the constituents of the essential oil obtained from the M. nodosa leaves, as well as its antimicrobial, leishmanicidal, cicatrizing activity and toxicity. Morphologically, M. nodosa is a bush with clumps of straight or curved stems. It has a deep, pivoting root and presents a chandelier shaped structure in the upper part from where the stems sprout. It presents compound, bipinnate, imparipinnate, oppositely crossed leaves. The inflorescence is racemose with golden-yellow flowers. It is characterized by septifrague capsule type fruit with replum and winged seeds. Anatomically the leaves are hypostomatic with predominantly paracytic stomates. The epidermis is uniseriate with a thick cuticle and glandular trichomes throughout the structure of the young leaves. The essential oil from the M. nodosa leaves collected from seven different locations in the Brazilian savannah was analyzed by GC(FID) and GC/MS. Five substances were identified, benzaldehyde and 1- octene-3-ol were the main constituents. Two different classes regarding sampling location and constituents were identified by means of the principal component and grouping analyses. The antimicrobial activity of the ethanolic extracts from leaves, stems, roots and of essential oil from leaves, and the fractions obtained from the roots, were assessed against Grampositive and Gram-negative bacteria, as well as the Candida albicans fungus, using well diffusion test and the agar dilution method. The ethanolic extract from the roots presented small antimicrobial activity while the hexane and dichloromethane fractions obtained from this extract presented MIC 0.39 mg/mL and 0.78 mg/mL against a number of Gram-positive bacteria and the Candida albicans fungus. The essential oil presented MIC 0.78 mg/mL to 1.56 mg/mL. The antimicrobial activity of the essential oil was the result of synergic action between the benzaldehyde, 1-octene-3-ol, 1-octanol, linalool and the mandelonitrile, constituents of the essential oil. Promastigote forms of Leishmania chagasi were used for the leishmanicidal assessment and it was verified that the ethanol extract from the leaves presented an IC50 of 93.2 μg/mL and from the roots presented an IC50 of 95.87 μg/mL. The hexane fraction from the roots presented an IC50 of 13.51μg/mL. A mixture of β-sitosterol and stigmasterol was isolated and identified in the hexane fraction obtained from the ethanol extract from the roots. This mixture was tested against L. chagasi resulting in an IC50 of 69.79 μg/mL. The cicatrizing activity of the ethanol extract from the leaves and roots was assessed on skin wounds in rats, and it be noted reepithelization occurred faster only in the group treated with a 2% aqueous solution of the ethanol extract from the roots. This action may be related to the alantoine isolated in the ethanol extract from the roots. The toxicity assessment of the ethanol extracts from roots, leaves and hexane fraction obtained from M . nodosa roots, tested on rats, mice and Artemia salina proved that this plant is not potentially toxic. In conclusion, according to the tests performed, the best results were obtained with ethanolic extract and it presented antimicrobial, wound cicatrization and leishmanicidal activities. Hexane and dichloromethane fractions obtained from roots extract presented antimicrobial activity against Gram-positive bacteria and the Candida albicans fungus and hexane fraction strong leishmanicidal activity. |
publishDate |
2008 |
dc.date.issued.fl_str_mv |
2008-12-18 |
dc.date.available.fl_str_mv |
2010-08-05 |
dc.date.accessioned.fl_str_mv |
2014-07-29T15:10:33Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/doctoralThesis |
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doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
TRESVENZOL, Leonice Manrique Faustino. Morphological and anatomical study, evaluation of biological activity and chemical composition and variability of essential oil Memora Nodosa (Silva Manso) Miers - Bignoniaceae. 2008. 144 f. Tese (Doutorado em Ciencias Biologicas) - Universidade Federal de Goiás, Goiânia, 2008. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tde/1017 |
identifier_str_mv |
TRESVENZOL, Leonice Manrique Faustino. Morphological and anatomical study, evaluation of biological activity and chemical composition and variability of essential oil Memora Nodosa (Silva Manso) Miers - Bignoniaceae. 2008. 144 f. Tese (Doutorado em Ciencias Biologicas) - Universidade Federal de Goiás, Goiânia, 2008. |
url |
http://repositorio.bc.ufg.br/tede/handle/tde/1017 |
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por |
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Universidade Federal de Goiás |
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Doutorado em Biologia |
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UFG |
dc.publisher.country.fl_str_mv |
BR |
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Ciencias Biologicas |
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Universidade Federal de Goiás |
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