title: Effect of triterpenoids and limonoids isolated from Cabralea canjerana and Carapa guianensis (Meliaceae) against Spodoptera frugiperda (J. E. Smith).
abstract: The activities of two triterpenoids, ocotillone and cabraleadiol, and four limonoids, methyl angolensate, 3-beta-deacetylfissinolide, 7-deacetoxy-7-oxogedunin, and beta-photogedunin, isolated from arillus of Carapa guianensis and fruits and seeds of Cabralea canjerana (Meliaceae), were evaluated against the fall armyworm Spodoptera frugiperda. Gedunin was used as a positive control. 7-Deacetoxy-7-oxogedunin and beta-photogedunin reduced the pupal weight as occurred with gedunin. Cabraleadiol, 3-beta-deacetylfissinolide, and 7-deacetoxy-7-oxogedunin prolonged the larval phase similar to the control (gedunin) of approximately 1.2 days at 50.0 mg kg(-1). The highest insecticidal activity was obtained for beta-photogedunin.
authors.affiliation: Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luiz, km 235, CP 676, 13565-905 - São Carlos - SP, Brazil.
authors.forename: André L F
authors.initials: AL
authors.lastname: Sarria
authors.forename: Márcio S
authors.initials: MS
authors.lastname: Soares
authors.forename: Andréia P
authors.initials: AP
authors.lastname: Matos
authors.forename: João B
authors.initials: JB
authors.lastname: Fernandes
authors.forename: Paulo C
authors.initials: PC
authors.lastname: Vieira
authors.forename: M Fátima das G F
authors.initials: MF
authors.lastname: da Silva
mesh_terms: D000818:Animals; D002855:Chromatography, Thin Layer; D007814:Larva / Q000187:drug effects; D036701:Limonins / Q000302:isolation & purification / Q000494:pharmacology*; D029582:Meliaceae / Q000737:chemistry*; D018411:Spodoptera / Q000187:drug effects* / Q000254:growth & development; D014315:Triterpenes / Q000302:isolation & purification / Q000494:pharmacology*
chemical_list: D036701:Limonins; D014315:Triterpenes