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 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, obtained by Clevenger-type hydrodistillation in February and April 2022, which resulted mainly formed by sesquiterpene hydrocarbons. The February EO profile was characterized by β-caryophyllene and germacrene D as main compounds, while in April β-myrcene was detected at high percentage in addition to the previous two components. 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 β-caryophyllene and germacrene D.

Teucrium fruticans L., a multi-scale study: from trichomes to essential oil / C. Giuliani, M. Bottoni, L. Santagostini, A. Spada, A. Papini, F. Milani, G. Fico. - In: CHEMISTRY & BIODIVERSITY. - ISSN 1612-1880. - (2023), pp. e202200913.1-e202200913.14. [Epub ahead of print] [10.1002/cbdv.202200913]

Teucrium fruticans L., a multi-scale study: from trichomes to essential oil

C. Giuliani
Primo
;
M. Bottoni
Secondo
;
L. Santagostini
;
A. Spada;F. Milani
Penultimo
;
G. Fico
Ultimo
2023

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 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, obtained by Clevenger-type hydrodistillation in February and April 2022, which resulted mainly formed by sesquiterpene hydrocarbons. The February EO profile was characterized by β-caryophyllene and germacrene D as main compounds, while in April β-myrcene was detected at high percentage in addition to the previous two components. 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 β-caryophyllene and germacrene D.
Settore BIO/15 - Biologia Farmaceutica
Settore CHIM/12 - Chimica dell'Ambiente e dei Beni Culturali
Settore BIO/01 - Botanica Generale
2023
22-mar-2023
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/961448
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