Open AccessInsecticidal activity againstSpodoptera frugiperda(Lepidoptera: Noctuidae) of metabolites isolated from the aerial part ofPiper septuplinervium(Miq.) C. DC. and inflorescences ofPiper subtomentosumTrel. & Yunck. (Piperaceae)
Author(s) -
Mónica Constanza Ávila Murillo,
Luís Enríque Cuca Suárez,
Jairo Alonso Cerón Salamanca
Publication year - 2014
Publication title -
química nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.214
H-Index - 73
eISSN - 1678-7064
pISSN - 0100-4042
DOI - 10.5935/0100-4042.20140067
Subject(s) - noctuidae , lepidoptera genitalia , spodoptera , piper , botany , biology , inflorescence , genetics , gene , recombinant dna
The bioassay-guided purification of ethanolic extracts from inflorescences of Piper subtomentosum Trel. & Yunck and aerial part of Piper septuplinervium (Miq. ) C. DC. led to isolation of five flavonoids, uvangoletin (1), galangin (2), chrysin (5), 5-hydroxy-4',7-dimethoxy-flavone (6), pinostrobin (7); one amide, N-p-coumaroil-tyramine (4); one acylglycerol, monopalmitin (3); one derivative of acid, protocatechuic acid (8); and glycosydated sterol, daucosterol (9). Their structures were elucidated on the basis of spectroscopy and spectrometry data and by comparison with data reported in the literature. The isolated compounds were tested against Spodoptera frugiperda. The results showed galangin and protocatechuic acid to be the most active (LC 50 13.63 and 17.16 ppm, respectively)