title: Ultrastructural and chemical evidence that the cell wall of green cotton fiber is suberized.
abstract: Green cotton (Gossypium hirsutum L.) fibers were shown by electron microscopy to have numerous thin concentric rings around the lumen of the cell. These rings possessed a lamellar fine structure characteristic of suberin. LiA1D(4) depolymerization and gas chromatography-mass spectrometry analysis showed the presence of a suberin polymer in the green cotton with the major aliphatic monomers being omega-hydroxydocosanoic acid (70%) and docosanedoic acid (25%). Ordinary white cotton was shown by chemical and ultrastructural examination to be encircled by a thin cuticular polymer containing less than 0.5% of the aliphatic components found in green cotton.
authors: Southern Regional Research Center, Science and Education Administration, United States Department of Agriculture, P.O. Box 19687, New Orleans, Louisiana 70179.
authors: L Y
authors: LY
authors: Yatsu
authors: K E
authors: KE
authors: Espelie
authors: P E
authors: PE
authors: Kolattukudy