Structure, Gas Chromatographic Measurement, and Function of Suberin Synthesized by Potato Tuber Tissue Slices 1
AUTOR(ES)
Kolattukudy, P. E.
RESUMO
The polymeric material (suberin) of the wound periderm of potato tuber slices was analyzed after depolymerization with LiAIH4 in tetrahydrofuran or BF3 in methanol with the use of thin layer chromatography, chemical modification, and combined gas-liquid chromatography and mass spectrometry. Fatty acids (C16 to C26), fatty alcohols (C16 to C26), octadec-9-ene-1, 18-dioic acid, and 18-hydroxy-octadec-9-enoic acid were identified to be the major components. Based on the structural information that the two bifunctional C18 molecules constituted a major portion of suberin, a gas chromatographic method of measuring suberization was developed. This method consisted of hydrogenolysis of powdered tissue followed by thin layer chromatography and gas chromatographic measurement of octadecene-1, 18-diol as the trimethylsilyl ether. With this assay it was shown that the development of resistance to water loss by the tissue slices was directly proportional to the quantity of the bifunctional C18 molecules, thus providing evidence that a function of suberin is prevention of water loss.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=541513Documentos Relacionados
- Turnover Rates of Phosphate Esters in Fresh and Aged Slices of Potato Tuber Tissue 1
- Membrane Transformations in Aging Potato Tuber Slices 1
- ASCORBIC ACID FORMATION IN POTATO TUBER SLICES 1
- Potato tuber tissue respiration & ventilation 1
- Uptake and Utilization of Phosphate Associated With Respiratory Changes in Potato Tuber Slices 1
