title: Phytotoxic activity of foliar volatiles and essential oils of Calamintha nepeta (L.) Savi.
abstract: 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.
authors.affiliation: 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.
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Araniti
authors.forename: Antonio
authors.initials: A
authors.lastname: Lupini
authors.forename: Agostino
authors.initials: A
authors.lastname: Sorgonà
authors.forename: Giancarlo Antonio
authors.initials: GA
authors.lastname: Statti
authors.forename: Maria Rosa
authors.initials: MR
authors.lastname: Abenavoli
mesh_terms: D027721:Amaranthus / Q000187:drug effects; D018525:Germination / Q000187:drug effects; D019686:Lamiaceae / Q000737:chemistry*; D018545:Lactuca / Q000187:drug effects; D009822:Oils, Volatile / Q000737:chemistry / Q000494:pharmacology*; D018517:Plant Roots / Q000187:drug effects; D031224:Raphanus / Q000187:drug effects
chemical_list: D009822:Oils, Volatile