Diketopiperazines from Alternaria dauci

dc.creatorMARTHA ADRIANA LEYTE LUGO
dc.creatorPascal Richomme
dc.creatorLuis Manuel Peña Rodríguez
dc.date2020
dc.date.accessioned2023-07-21T19:19:23Z
dc.date.available2023-07-21T19:19:23Z
dc.identifierhttp://cicy.repositorioinstitucional.mx/jspui/handle/1003/1864
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7737415
dc.descriptionAlternaria dauci is the causal agent of Alternaria leaf blight (ALB), a foliar disease of carrot crops (Daucus carota) around the world. In terms of phytotoxic metabolites production, A. dauci has received limited attention. Previous studies carried out on the secondary metabolites involved in the pathogenicity of this fungus have only reported the isolation of a ubiquitous non-selective phytotoxin known as zinniol. Because of this, the aim of this research is directed towards the isolation and identification of secondary metabolites involved in the plant-pathogen interaction process. A. dauci was cultured in the Czapek-Dox medium, and the culture filtrate was extracted with ethyl acetate. The leaf-spot assay of fractions resulting from the partition process showed a phytotoxic effect in the ethyl acetate fraction. The chromatographic separation of ethyl acetate fraction allowed the isolation of seven diketopiperazines, identified as cyclo-(pro-val) (1), cyclo-(pro-leu) (2), cyclo-(pro-phe) (3), cyclo-(val-leu) (4), cyclo-(val-phe) (5), cyclo-(leu-phe) (6) and cyclo-(leu-tyr) (7). The structures of the different metabolites were established by comparing their spectroscopic (H-1 NMR) and spectrometric (GC-MS) data with those reported in the literature.
dc.formatapplication/pdf
dc.languageeng
dc.relationinfo:eu-repo/semantics/datasetDOI/10.29356/jmcs.v64i4.1228
dc.relationcitation:Leyte-Lugo, M., Richomme, P., & Peña-Rodriguez, L. M. (2020). Diketopiperazines from Alternaria dauci. Journal of the Mexican Chemical Society, 64(4), 283-290.
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourceJournal of the Mexican Chemical Society, 64(4), 283-290, 2020.
dc.subjectinfo:eu-repo/classification/Autores/DAUCUS CAROTA
dc.subjectinfo:eu-repo/classification/Autores/ALTERNARIA DAUCI
dc.subjectinfo:eu-repo/classification/Autores/PHYTOPATHOGEN
dc.subjectinfo:eu-repo/classification/Autores/PHYTOTOXICITY
dc.subjectinfo:eu-repo/classification/Autores/DIKETOPIPERAZINE
dc.subjectinfo:eu-repo/classification/cti/2
dc.subjectinfo:eu-repo/classification/cti/24
dc.subjectinfo:eu-repo/classification/cti/2403
dc.subjectinfo:eu-repo/classification/cti/230221
dc.subjectinfo:eu-repo/classification/cti/230221
dc.titleDiketopiperazines from Alternaria dauci
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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