The suberin composition of the cork layers from some ribes species

✍ Scribed by P.J. Holloway

• Book ID: 103039979
• Publisher: Elsevier Science
• Year: 1972
• Tongue: English
• Weight: 418 KB
• Volume: 9
• Category: Article
• ISSN: 0009-3084
• DOI: 10.1016/0009-3084(72)90012-6

✦ Synopsis

The composition of the suberins of six closely related Ribes species has been examined using thin-layer chromatography, preparative thin-layer chromatography, gas-liquid chromatography and combined gas chromatography-mass spectrometry. The suberins have a similar qualitative composition and contain alkan-l-ols, c~,og-diols, monobasic acids, or, m-dibasic acids, to-hydroxymonobasic acids, dihydroxyhexadecanoic acids and 9,10,18trihydroxyoctadecanoic acid. The neutral constituents comprise up to 16 % of the total suberins with Cls and C~o diols being the most abundant compounds, m-Hydroxymonobasic acids ranging from C16 to Ca4 account for at least 50~o of the total suberin of each species and ~,og-dibasic acids of similar chain lengths for a further 25-30 %. The predominant homologues of the two major acid classes are C16 and monoenoic Cts. The main difference between the species occurs in the relative amounts of the various constituents.