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.
Allelopathic Potential of Rapanea umbellata Leaf Extracts
Paula Novaes,M. Imatomi,R. Varela,J. Molinillo,Rodney Lacret,S. Gualtieri,F. A. Macias
Published 2013 in Chemistry and Biodiversity
ABSTRACT
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- Publication year
2013
- Venue
Chemistry and Biodiversity
- Publication date
2013-08-01
- Fields of study
Biology, Medicine, Environmental Science
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- Source metadata
Semantic Scholar, PubMed
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