期刊
MOLECULES
卷 22, 期 2, 页码 -出版社
MDPI AG
DOI: 10.3390/molecules22020222
关键词
essential oil; anti-germination; Monarda didyma L; hydrogen peroxide; malondialdehyde; phytotoxic activity
The chemical composition of the essential oil of the flowering aerial parts of Monarda didyma L. cultivated in central Italy was analyzed by Gas Chromatography/Mass Spectrometry (GC/MS). The major compounds of the oil were thymol (59.3%), p-cymene (10.3%), terpinolene (9.2%), -3-carene (4.4%), myrcene (3.7%), and camphene (3.4%). The essential oil was tested in vitro for its anti-germination activity against Papaver rhoeas L., Taraxacum officinale F. H. Wigg., Avena fatua L., Raphanus sativus L. and Lepidium sativum L. seeds, demonstrating good inhibitory activity in a dose-dependent way. The exposure of the employed weed seeds to M. didyma essential oil and thymol solution (59.3%) increased the level of hydrogen peroxide (H2O2) and malondialdehyde (MDA), markers of oxidative stress, in emerging 5-day-old rootlets.
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