Low molecular weight phenols from the bioactive aqueous fraction of Cestrum parqui.
The aqueous fraction of fresh leaves of Cestrum parqui and its organic fractions have been assayed for their phytotoxicity on Lactuca sativa, Lycopersicon esculentum, and Allium cepa. The tests showed that the bioactivity was retained in the organic fractions. Chromatographic processes led to isolation and characterization of the N-(p-carboxymethylphenyl)-p-hydroxybenzamide together with 17 low molecular weight phenols and 2 flavones. The phytotoxicity tests showed a good activity of these compounds on the target species. Comparison of some metabolites with commercial herbicides revealed a major activity of the natural compounds at lower concentrations.
D'Abrosca
Brigida
B
Dipartimento di Scienze della Vita, Seconda Università di Napoli, Via Vivaldi 43, I-81100 Caserta, Italy.
DellaGreca
Marina
M
Fiorentino
Antonio
A
Monaco
Pietro
P
Zarrelli
Armando
A
D032301:Cestrum / Q000737:chemistry*; D006540:Herbicides / Q000494:pharmacology; D008970:Molecular Weight; D010636:Phenols / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D018515:Plant Leaves / Q000737:chemistry*; D014867:Water
D006540:Herbicides; D010636:Phenols; D014867:Water