title: Identification of a novel series of alkylitaconic acids in wood cultures of Ceriporiopsis subvermispora by gas chromatography/mass spectrometry.
abstract: A novel series of long-chain unsaturated dicarboxylic acids consisting of a long aliphatic chain attached to the C-3 position of itaconic acid has been identified by gas chromatography/mass spectrometry during in vitro decay of eucalypt wood by the white-rot basidiomycete Ceriporiopsis subvermispora. The major compounds were identified as tetradecyl-, 7-hexadecenyl- and hexadecylitaconic acids by their mass fragmentation patterns. Other members of the same compound series, identified as dodecanyl-, tridecanyl-, tetradecenyl-, pentadecanyl-, octadecenyl- and octadecanylitaconic acids, were present in very minor amounts or traces. Whereas hexadecenylitaconic acid has already been reported in cultures of C. subvermispora, to our knowledge this is the first report of the presence of the other alkylitaconic acids in fungal cultures. These new alkylitaconic-type metabolites may constitute a source for peroxidizable lipids involved in lignin degradation during wood decay by C. subvermispora and other white-rot basidiomycetes.
authors.affiliation: Instituto de Recursos Naturales y Agrobiología, CSIC, Reina Mercedes 10, P.O. Box 1052, 41080, Seville, Spain. delrio@irnase.csic.es
authors.forename: José C
authors.initials: JC
authors.lastname: del Río
authors.forename: Ana
authors.initials: A
authors.lastname: Gutiérrez
authors.forename: María J
authors.initials: MJ
authors.lastname: Martínez
authors.forename: Angel T
authors.initials: AT
authors.lastname: Martínez AT
mesh_terms: D001487:Basidiomycota / Q000737:chemistry*; D005052:Eucalyptus / Q000382:microbiology; D008401:Gas Chromatography-Mass Spectrometry; D006900:Hydroxylation; D015227:Lipid Peroxidation; D008055:Lipids / Q000737:chemistry; D008745:Methylation; D013386:Succinates / Q000737:chemistry*; D014934:Wood
chemical_list: D008055:Lipids; D013386:Succinates; C005229:itaconic acid