RT journal article
T1 Evaluation of the Allelopathic Potential of Leaf, Stem, and Root Extracts of Ocotea pulchella NEES ET MART
A1 P. Candido, Lafayette
A1 J. Gualtieri, Sonia C.
A1 Varela Montoya, Rosa María
A1 Torres Martínez, Ascensión
A1 González Molinillo, José María
A1 Macías Domínguez, Francisco Antonio
A2 Química Orgánica
K1 Ocotea pulchella
K1 Ocoteol
K1 allelopathic activity
K1 cerrado
K1 allelochemicals
AB Despite the increase in recent decades in herbicide research on the potential of native plants, current knowledge isconsidered to be low. Very few studies have been carried out on the chemical profile or the biological activity of the Brazilian savanna (Cerrado) species. In the study reported here, the allelopathic activity of AcOEt and MeOH extracts of leaves, stems, and roots from Ocotea pulchella NEES was evaluated. The extracts were assayed on etiolated wheat coleoptiles. The AcOEt leaf extract was the most active and this was tested on standard target species (STS). Lycopersicon esculentum and Lactuca sativa were the most sensitive species in this test. A total of eleven compounds have been isolated and characterized. Compounds 1, 2, 4, and 6 have not been identified previously from O. pulchella and ocoteol (9) is reported for the first time in the literature. Eight compounds were tested on wheat coleoptile growth, and spathulenol, benzyl salicylate, and benzyl benzoate showed the highest activities. These compounds showed inhibitory activity on L. esculentum. The values obtained correspond to the activity exhibited by the extract and these compounds may therefore be responsible for the allelopathic activity shown by O. pulchella.
PB CHEMISTRY & BIODIVERSITY
YR 2016
FD 2016-03
LK http://hdl.handle.net/10498/20328
UL http://hdl.handle.net/10498/20328
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026