title: Histochemical investigation of Cochlospermum regium (Schrank) Pilg. leaves and chemical composition of its essential oil.
abstract: Essential oil from Cochlospermum regium (Schrank) Pilg. leaves (CR-EO) has been extracted by hydrodistillation; we analysed the CR-EO by gas chromatography coupled with mass spectrometry. We also conducted histochemical analysis on cross-sections of the central vein of young and adult leaves. A total of 32 compounds were qualitatively and quantitatively analysed, which represented 94.87% of the total CR-EO oil content. The CR-EO basically consisted of sesquiterpenes (96.87%); its main component was β-copaen-4-α-ol (18.73%), followed by viridiflorol (12.67%). The histochemical analyses identified the main classes of compounds present in both young and adult leaves.
authors.affiliation: a Departamento de Produção Vegetal , Faculdade de Ciências Agronômicas, Universidade Estadual Paulista , Botucatu , SP , Brazil.
authors.forename: Marielle Cascaes
authors.initials: MC
authors.lastname: Inácio
authors.forename: Tiago Antunes
authors.initials: TA
authors.lastname: Paz
authors.forename: Bianca Waléria
authors.initials: BW
authors.lastname: Bertoni
authors.forename: Maria Aparecida Ribeiro
authors.initials: MA
authors.lastname: Vieira
authors.forename: Márcia Ortiz Mayo
authors.initials: MO
authors.lastname: Marques
authors.forename: Ana Maria Soares
authors.initials: AM
authors.lastname: Pereira
mesh_terms: D031212:Bixaceae / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D009822:Oils, Volatile / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D012717:Sesquiterpenes / Q000032:analysis*; D013729:Terpenes / Q000032:analysis
chemical_list: D009822:Oils, Volatile; D012717:Sesquiterpenes; D013729:Terpenes; C552080:viridiflorol
keywords: Bixaceae; Cochlospermum regium; GC–MS analysis; sesquiterpenes; β-copaen-4-α-ol