title: Potential allelochemicals from Sambucus nigra.
abstract: Twenty-four aromatic metabolites belonging to cyanogenins, lignans, flavonoids, and phenolic glycosides were obtained from Sambucus nigra. Structures were determined on the basis of their spectroscopic features. Two compounds have been isolated and identified as (2S)-2-O-beta-D-glucopyranosyl-2-hydroxyphenylacetic acid and benzyl 2-O-beta-D-glucopyranosyl-2,6-dihydroxybenzoate. All the compounds have been assayed on dicotyledons Lactuca sativa (lettuce) and Raphanus sativus (radish) and monocotyledon Allium cepa (onion) to test their stimulatory or inhibitory effects on seed germination and radicle elongation. Cyanogenins have a mainly inhibiting effect while lignans stimulate the growth. Some compounds show different effects on dicotyledons and monocotyledons.
authors.affiliation: Dipartimento di Scienze della Vita, II Università di Napoli, via Vivaldi 43, I-81100, Caserta, Italy.
authors.forename: B
authors.initials: B
authors.lastname: D'Abrosca
authors.forename: M
authors.initials: M
authors.lastname: DellaGreca
authors.forename: A
authors.initials: A
authors.lastname: Fiorentino
authors.forename: P
authors.initials: P
authors.lastname: Monaco
authors.forename: L
authors.initials: L
authors.lastname: Previtera
authors.forename: A M
authors.initials: AM
authors.lastname: Simonet
authors.forename: A
authors.initials: A
authors.lastname: Zarrelli
mesh_terms: D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D062385:Hydroxybenzoates / Q000737:chemistry / Q000302:isolation & purification*; D019684:Magnoliopsida / Q000737:chemistry*; D015394:Molecular Structure; D010648:Phenylacetates / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D013057:Spectrum Analysis
chemical_list: C448643:2-O-glucopyranosyl-2-hydroxyphenylacetic acid; D005960:Glucosides; D062385:Hydroxybenzoates; D010648:Phenylacetates; C448644:benzyl 2-O-glucopyranosyl-2,6-dihydroxybenzoate