Composition of the Aliphatic Components of Suberin of the Endodermal Fraction from the First Internode of Etiolated Sorghum Seedlings
- 1 March 1979
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 63 (3), 433-435
- https://doi.org/10.1104/pp.63.3.433
Abstract
The stems from etiolated seedlings of S. bicolor were separated into epidermal and endodermal fractions by manually removing the stele from the cortex. The epidermal fraction contained a lipid polymer whose monomeric composition was characteristic of cutin with dihydroxyhexadecanoic acid as a major component (25%). The endodermal fraction contained a lipid polymer whose monomeric composition was characteristic of suberin: hexadecanoic acid 12%, octadecenol 6%, octadecenoic acid 23%, .omega.-hydroxyhexadecanoic acid 17%, hexadecanedioc acid 8%, .omega.-hydroxyoctadecenoic acid 8% and octadecenedioic acid 12%. This endodermal polymer is thought to be the suberin component of the Casparian band.This publication has 12 references indexed in Scilit:
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