Teucrium fruticans L., a Multi-Scale Study: From Trichomes to Essential Oil.
Chem Biodivers
; 20(4): e202200913, 2023 Apr.
Article
em En
| MEDLINE
| ID: mdl-36947520
ABSTRACT
This work represents the first multi-scale study on Teucrium fruticans L. cultivated at the Ghirardi Botanic Garden (Lombardy, Northern Italy), combining a micromorphological and a phytochemical survey on the plant's aerial parts. Micromorphological investigations, performed by Light Microscopy, Fluorescence Microscopy and Scanning Electron Microscopy, highlighted the presence of five trichomes morphotypes, distinguished by a different distribution pattern peltates, short-stalked and ball-like medium-stalked capitates, ubiquitous on the whole plant, medium-stalked and long-stalked capitates, exclusive to the floral whorls. Both peltates and medium-stalked capitates were recognized as the main terpene production sites. Phytochemical characterization focused on the essential oils (EOs), obtained by Clevenger-type hydrodistillation in February and April 2022 and characterized by Gas Chromatography-Mass Spectrometry (GC/MS), which resulted mainly formed by sesquiterpene hydrocarbons. The February EO profile was characterized by ß-caryophyllene (28.30 %) and germacrene D (19.16 %) as main compounds, while in April ß-myrcene was detected at high percentage (13.77 %), in addition to the previous two components (15.72 % and 11.55 %, respectively). Literature data, dealing with the biological activities of the main oil constituents, highlighted an anti-microbial, anti-inflammatory, and anti-tumor potential, due to the high content in sesquiterpenes and, particularly, of ß-caryophyllene and germacrene D.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Sesquiterpenos
/
Óleos Voláteis
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Teucrium
Idioma:
En
Revista:
Chem Biodivers
Assunto da revista:
BIOQUIMICA
/
QUIMICA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Itália