Department of Pharmaceutical Sciences, University of Milan, Milan, Italy.
Ghirardi Botanic Garden, Department of Pharmaceutical Sciences, University of Milan, Toscolano Maderno (Brescia), Italy.
Nat Prod Res. 2022 Jan;36(1):54-62. doi: 10.1080/14786419.2020.1761363. Epub 2020 May 7.
A micromorphological and phytochemical survey was performed on subsp. cultivated in Italy. The of the vegetative and reproductive organs was investigated: peltate, short-, medium- and long-stalked capitates were described. Histochemistry evidenced similar results for peltates and long-stalked capitates, differences for short and medium capitates. For the first time, this work reported the characterization of volatile organic compounds from leaves and flowers, along with the first analysis of the essential oil obtained from the aerial parts of Italian samples. The floral profile resulted more complex than the foliar one, due to the higher number of the total compounds (40 27) and of the exclusive constituents (24 11). 16 common compounds were detected, with β-caryophyllene as the most abundant. The essential oil was characterized by 23 compounds, with β-caryophyllene dominating. The peltates, the medium and the long-stalked capitates resulted the producers of the investigated compounds.
对在意大利种植的亚种进行了微观形态和植物化学调查。研究了营养器官和繁殖器官的特征：描述了盘状、短、中、长梗头状花序。组织化学为盘状和长梗头状花序提供了相似的结果，而短梗和中梗头状花序则有所不同。这是首次报道了叶和花的挥发性有机化合物的特征，以及首次分析了来自意大利样品的空气部分获得的精油。由于总化合物（40 27）和特有成分（24 11）的数量较高，因此花香图谱比叶图谱更为复杂。检测到 16 种常见化合物，其中含量最丰富的是β-石竹烯。精油的特征是含有 23 种化合物，其中β-石竹烯占主导地位。盘状、中梗和长梗头状花序是所研究化合物的产生者。
