Ethnobotany, anatomy and physicochemical characterization of essential oil of Baccharis obovata Hook. et Arn. (Asteraceae: Astereae)

Baccharis obovata Hook. et Arn. is an aromatic species known as "wautro", and is an important part of the Mapuche herbolarium of Patagonia Argentina. The objectives were to investigate its ethnobotany and shoot anatomy, as well as to characterize physically and chemically its essential oil...

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Autores principales: Molares, S., Beatriz González, S., Ladio, A., Castro, M.A.
Formato: JOUR
Materias:
Baccharis obovata Hook. et Arn.
Essential oils
Leaf and stem anatomy
Mapuche
Medicinal uses
Asteraceae
Astereae
Baccharis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01023306_v23_n2_p578_Molares
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01023306_v23_n2_p578_Molares
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spelling todo:paper_01023306_v23_n2_p578_Molares2023-10-03T14:57:26Z Ethnobotany, anatomy and physicochemical characterization of essential oil of Baccharis obovata Hook. et Arn. (Asteraceae: Astereae) Molares, S. Beatriz González, S. Ladio, A. Castro, M.A. Baccharis obovata Hook. et Arn. Essential oils Leaf and stem anatomy Mapuche Medicinal uses Asteraceae Astereae Baccharis Baccharis obovata Hook. et Arn. is an aromatic species known as "wautro", and is an important part of the Mapuche herbolarium of Patagonia Argentina. The objectives were to investigate its ethnobotany and shoot anatomy, as well as to characterize physically and chemically its essential oil. Rural informant-interviews were conducted in two Mapuche communities of Northwestern Patagonia, Argentina. In addition, we collected plant material for observation at optical and scanning environmental microscope, and for hydro-distillation of essential oil. Informants cited with a high level of consensus that this plant is principally used for hair loss, dandruff, some dermatitis, and headaches. The main leaf features were: isobilateral mesophyll, anomocytic stomata, glandular and pluricellular trichomas and squizogen cavities that secrete essential oils. Primary stem presented trichomas and secretory cavities similar to those of the leaves, collenchyma in ribs, chlorenchyma in valleys interrupted by air spaces, continuous vascular cylinder, uni-seriated and by sectors bi-seriated endodermis, discontinuous sclerenchyma, and acicular crystals in peripheral marrow cells. In terms of its essential oil, annual average yield, optimum time for distillation, relative density, specific rotation and refractive index was also obtained. B. obovata is an interesting cosmeceutical species, this work contributes to its general knowledge providing useful information for future quality control tasks, in addition to its bio-cultural conservation. Fil:Castro, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01023306_v23_n2_p578_Molares
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Baccharis obovata Hook. et Arn.
Essential oils
Leaf and stem anatomy
Mapuche
Medicinal uses
Asteraceae
Astereae
Baccharis
spellingShingle Baccharis obovata Hook. et Arn.
Essential oils
Leaf and stem anatomy
Mapuche
Medicinal uses
Asteraceae
Astereae
Baccharis
Molares, S.
Beatriz González, S.
Ladio, A.
Castro, M.A.
Ethnobotany, anatomy and physicochemical characterization of essential oil of Baccharis obovata Hook. et Arn. (Asteraceae: Astereae)
topic_facet Baccharis obovata Hook. et Arn.
Essential oils
Leaf and stem anatomy
Mapuche
Medicinal uses
Asteraceae
Astereae
Baccharis
description Baccharis obovata Hook. et Arn. is an aromatic species known as "wautro", and is an important part of the Mapuche herbolarium of Patagonia Argentina. The objectives were to investigate its ethnobotany and shoot anatomy, as well as to characterize physically and chemically its essential oil. Rural informant-interviews were conducted in two Mapuche communities of Northwestern Patagonia, Argentina. In addition, we collected plant material for observation at optical and scanning environmental microscope, and for hydro-distillation of essential oil. Informants cited with a high level of consensus that this plant is principally used for hair loss, dandruff, some dermatitis, and headaches. The main leaf features were: isobilateral mesophyll, anomocytic stomata, glandular and pluricellular trichomas and squizogen cavities that secrete essential oils. Primary stem presented trichomas and secretory cavities similar to those of the leaves, collenchyma in ribs, chlorenchyma in valleys interrupted by air spaces, continuous vascular cylinder, uni-seriated and by sectors bi-seriated endodermis, discontinuous sclerenchyma, and acicular crystals in peripheral marrow cells. In terms of its essential oil, annual average yield, optimum time for distillation, relative density, specific rotation and refractive index was also obtained. B. obovata is an interesting cosmeceutical species, this work contributes to its general knowledge providing useful information for future quality control tasks, in addition to its bio-cultural conservation.
format JOUR
author Molares, S.
Beatriz González, S.
Ladio, A.
Castro, M.A.
author_facet Molares, S.
Beatriz González, S.
Ladio, A.
Castro, M.A.
author_sort Molares, S.
title Ethnobotany, anatomy and physicochemical characterization of essential oil of Baccharis obovata Hook. et Arn. (Asteraceae: Astereae)
title_short Ethnobotany, anatomy and physicochemical characterization of essential oil of Baccharis obovata Hook. et Arn. (Asteraceae: Astereae)
title_full Ethnobotany, anatomy and physicochemical characterization of essential oil of Baccharis obovata Hook. et Arn. (Asteraceae: Astereae)
title_fullStr Ethnobotany, anatomy and physicochemical characterization of essential oil of Baccharis obovata Hook. et Arn. (Asteraceae: Astereae)
title_full_unstemmed Ethnobotany, anatomy and physicochemical characterization of essential oil of Baccharis obovata Hook. et Arn. (Asteraceae: Astereae)
title_sort ethnobotany, anatomy and physicochemical characterization of essential oil of baccharis obovata hook. et arn. (asteraceae: astereae)
url http://hdl.handle.net/20.500.12110/paper_01023306_v23_n2_p578_Molares
work_keys_str_mv AT molaress ethnobotanyanatomyandphysicochemicalcharacterizationofessentialoilofbaccharisobovatahooketarnasteraceaeastereae
AT beatrizgonzalezs ethnobotanyanatomyandphysicochemicalcharacterizationofessentialoilofbaccharisobovatahooketarnasteraceaeastereae
AT ladioa ethnobotanyanatomyandphysicochemicalcharacterizationofessentialoilofbaccharisobovatahooketarnasteraceaeastereae
AT castroma ethnobotanyanatomyandphysicochemicalcharacterizationofessentialoilofbaccharisobovatahooketarnasteraceaeastereae
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