Department of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133, Milan, Italy.
Ghirardi Botanic Garden, Department of Pharmaceutical Sciences, University of Milan, Via Religione 25, 25088, Toscolano Maderno, Italy.
Chem Biodivers. 2020 Nov;17(11):e2000532. doi: 10.1002/cbdv.202000532. Epub 2020 Nov 2.
This study presented a micromorphological and phytochemical survey on Lavandula dentata L. cultivated at the Ghirardi Botanic Garden (Toscolano Maderno, BS, Italy). The morphological investigation revealed the presence of peltate, short- and medium-stalked capitate trichomes. The histochemical survey showed terpene production by peltates and medium-stalked capitates, hydrophilic secretions by short-stalked capitates. The phytochemical survey was developed on leaf and flower volatile organic compounds (VOCs) and on the essential oil (EO) from the flowering aerial parts. The VOC profiles represented an element of novelty and were dominated by oxygenated monoterpenes, among which 1,8-cineole and β-pinene were the most abundant (77.40 %, 7.11 % leaves; 81.08 %, 10.46 % flowers). The EO of L. dentata was dominated by oxygenated monoterpenes with a high percentage of 1,8-cineole (69.08 %), followed by β-pinene, trans-pinocarveol and myrtenal. Evaluations about the ecological role, the potential biological activity and the sensory attributes were proposed, based on literature contributions.
本研究对意大利托斯卡纳大区加尔达湖畔的吉拉尔迪植物园（Toscolano Maderno，BS）种植的薰衣草（Lavandula dentata L.）进行了微观形态和植物化学调查。形态学研究表明存在盘状、短柄和中柄头状的腺毛。组织化学研究表明盘状和中柄头状腺毛产生萜烯，短柄头状腺毛产生亲水性分泌物。植物化学调查针对叶和花的挥发性有机化合物（VOCs）以及开花地上部分的精油（EO）进行。VOC 图谱代表了新颖性的元素，主要由含氧单萜组成，其中桉油醇和β-蒎烯的含量最丰富（叶片分别为 77.40%、7.11%；花朵分别为 81.08%、10.46%）。薰衣草的精油主要由含氧单萜组成，桉油醇的含量较高（69.08%），其次是β-蒎烯、反式-松油醇和桃金娘烯醛。根据文献资料，提出了关于生态作用、潜在生物活性和感官特性的评估。
