RT journal article
T1 Allelopathic Potential of Rapanea umbellata Leaf Extracts
A1 Novaes, Paula
A1 Imatomi, Maristela
A1 Valera Montoya, Rosa María
A1 González Molinillo, José María
A1 Lacret, Rodney
A1 J. Gualtieri, Sonia C.
A1 Macías Domínguez, Francisco Antonio
A2 Química Orgánica
K1 Allelopathy
K1 Allelopathic Potential
K1 Rapanea umbellata
K1 leaf
K1 extracts
AB The stressful conditions associated with the Brazilian savanna (Cerrado) environment were supposed to favor higher levels of allelochemicals in Rapanea umbellata from this ecosystem. The allelopathic potential of R. umbellata leaf extracts was studied using the etiolated wheat coleoptile and standard phytotoxicity bioassays. The most active extract was selected to perform a bioassay-guided isolation, which allowed identifying lutein (1) and ( )-catechin (2) as potential allelochemicals. Finally, the general bioactivity of the two compounds was studied, which indicated that the presence of 1 might be part of the defense mechanisms of this plant.
PB CHEMISTRY & BIODIVERSITY
YR 2013
FD 2013-10
LK http://hdl.handle.net/10498/20271
UL http://hdl.handle.net/10498/20271
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026