title: Allelopatic Potential of Dittrichia viscosa (L.) W. Greuter Mediated by VOCs: A Physiological and Metabolomic Approach.
abstract: Dittrichia viscosa (L.) W. Greuter is a pioneer species belonging to the Compositae family. It is widespread in the Mediterranean basin, where it is considered invasive. It is a source of secondary metabolites, playing an important ecological role. D. viscosa plant extracts showed a phytotoxic activity on several physiological processes of different species. In the current study, the allelopathic potential of D. viscosa VOCs, released by its foliage, was evaluated on seed germination and root growth of lettuce. The VOCs effect was also studied on lettuce adult plants in microcosm systems, which better mimicked the open field conditions. D. viscosa VOCs inhibited both seed germination and root growth of lettuce. The VOCs composition revealed a large presence of terpenoids, responsible of the effects observed. Moreover, D. viscosa VOCs caused an alteration on plant water status accompanied by oxidative damages and photoinhibition on lettuce adult plants.
authors.affiliation: Dipartimento AGRARIA, Università Mediterranea di Reggio Calabria, - Località Feo di Vito, Reggio Calabria, Italy.
authors.forename: Fabrizio
authors.identifier: http://orcid.org/0000-0002-4983-4116
authors.initials: F
authors.lastname: Araniti
authors.affiliation: Dipartimento AGRARIA, Università Mediterranea di Reggio Calabria, - Località Feo di Vito, Reggio Calabria, Italy.
authors.forename: Antonio
authors.initials: A
authors.lastname: Lupini
authors.affiliation: Dipartimento AGRARIA, Università Mediterranea di Reggio Calabria, - Località Feo di Vito, Reggio Calabria, Italy.
authors.forename: Francesco
authors.initials: F
authors.lastname: Sunseri
authors.affiliation: Dipartimento AGRARIA, Università Mediterranea di Reggio Calabria, - Località Feo di Vito, Reggio Calabria, Italy.
authors.forename: Maria Rosa
authors.initials: MR
authors.lastname: Abenavoli
mesh_terms: D064089:Allelopathy; D019659:Asteraceae / Q000737:chemistry* / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry; D058865:Introduced Species; D018545:Lactuca / Q000187:drug effects* / Q000254:growth & development / Q000528:radiation effects; D015227:Lipid Peroxidation; D055432:Metabolomics / Q000379:methods; D018384:Oxidative Stress; D018515:Plant Leaves / Q000737:chemistry; D025341:Principal Component Analysis; D036226:Seedlings / Q000187:drug effects / Q000254:growth & development; D012639:Seeds / Q000187:drug effects / Q000254:growth & development; D055549:Volatile Organic Compounds / Q000737:chemistry / Q000378:metabolism* / Q000494:pharmacology; D014867:Water / Q000378:metabolism
chemical_list: D055549:Volatile Organic Compounds; D014867:Water