a Dipartimento di Biotecnologie per il Monitoraggio Agro-Alimentare ed Ambientale (BIOMAA), Facoltà di Agraria - Salita Melissari , Università Mediterranea di Reggio Calabria , I-89124 , Reggio Calabria , RC , Italy.
Nat Prod Res. 2013;27(18):1651-6. doi: 10.1080/14786419.2012.746337. Epub 2012 Dec 6.
Foliar volatiles and essential oils of Calamintha nepeta (L.) Savi, a Mediterranean plant species belonging to the Labiatae family, were investigated for their phytotoxic activities on seed germination and root growth of crops (Lactuca sativa L. and Raphanus sativus L.) and weed species (Lolium perenne L. and Amaranthus retroflexus L.). Foliar volatiles of C. nepeta (L.) Savi strongly inhibited both germination and root growth of lettuce, and its essential oils, especially at 125, 250 and 500 μL/L, inhibited both processes in lettuce, radish and A. retroflexus L. species, while displaying a little effect on L. perenne L. By GC-MS, 28 chemicals were identified: 17 monoterpenes, 8 sesquiterpenes, 1 diterpene and 2 miscellaneous. Pulegone was the main constituent of the C. nepeta (L.) Savi essential oils. The terpenic components of essentials oils were probably responsible for the phytotoxic activities.
研究了唇形科多年生草本植物荆芥（Calamintha nepeta（L.）Savi）的叶挥发物和精油对作物（生菜和萝卜）和杂草（黑麦草和反枝苋）种子萌发和根生长的植物毒性活性。荆芥叶挥发物强烈抑制生菜的萌发和根生长，其精油，特别是在 125、250 和 500 μL/L 时，抑制生菜、萝卜和反枝苋的这两个过程，而对黑麦草几乎没有影响。通过 GC-MS 鉴定出 28 种化学物质：17 种单萜、8 种倍半萜、1 种二萜和 2 种杂萜。荆芥精油的主要成分是胡椒酮。精油中的萜类成分可能是其植物毒性活性的原因。
