Título:	Study in wood of Ceiba pentandra (L.) Gaertn. from planting: chemical constituents and their biological importance.
Autor:	SOUZA, P. B. A. OLIVEIRA, D. S. LIMA, R. M. B. de LIMA, M. P. NASCIMENTO, C. C. LIMA, R. M. SILVA, D. F. SILVA, M. F. G. F.
Afiliación:	P. B. A. SOUZA, UNIVERSIDADE FEDERAL DO AMAZONAS; D. S. OLIVEIRA, UNIVERSIDADE FEDERAL DO AMAZONAS; ROBERVAL MONTEIRO BEZERRA DE LIMA, CNPF; M. P. LIMA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; C. C. NASCIMENTO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; R. M. LIMA, EMPRESA BRASILEIRA DE PESQUISA AGROPECUÁRIA, BRASIL; D. F. SILVA, UNIVERSIDADE FEDERAL DE SÃO CARLOS; M. F. G. F. SILVA, UNIVERSIDADE FEDERAL DE SÃO CARLOS.
Año:	2026
Referencia:	Brazilian Journal of Biology, v. 86, e301763, 2026.
Descripción:	Ceiba pentandra (Malvaceae) is a species popularly known in North Brazil as “sumaúma” that has attracted interest in phytochemical studies due to the diversity of classes of compounds biologically active. The objective of this study was to investigate the chemical constituents present in the wood residues of Ceiba pentandra and to evaluate the antibacterial activity of a purified sesquiterpene lactone against Xanthomonas citri subsp. citri. The isolated compounds were identified based on one-dimensional (1H and 13C) and/or two-dimensional (HSQC and HMBC) NMR analyses, the mixtures of fatty acid were characterized by GC-MS. The chemical constituents identified were steroids (cholest-4-en-3-one, stigmast-4-ene-3,6-dione, β-sitosterol, and stigmasterol); macrolides (des-O-methyl-lasiodiplodine and lasiodiplodine); isocoumarin (4-hydroxymelein); sesquiterpene lactone (isohemigosilicic acid lactone-2-methyl ether); and a mixture of fatty acids (palmitic acid, oleic acid, stearic acid, linoleic acid, and dihydrosterculic acid). The sesquiterpene lactone was evaluated against the bacterium Xanthomonas citri ssp. citri and demonstrated bactericidal and bacteriostatic activities at concentrations up to 400 µg mL-1. Our phytochemical study aggregated knowledge of this wood species originated from plantation sites and found activity bactericide to combat citrus canker.
Thesagro:	Ácido Graxo Cancro Cítrico Malvaceae Ceiba Pentandra Xanthomonas Citri
NAL Thesaurus:	Macrolides Fatty acids
Palabras clave:	Citrus canker
ISSN:	1678-4375
DOI:	https://doi.org/10.1590/1519-6984.301763
Tipo de Material:	Artigo de periódico
Acceso:	openAccess
Aparece en las colecciones:	Artigo em periódico indexado (CNPF)