Ultrastructural and Chemical Evidence That the Cell Wall of Green Cotton Fiber Is Suberized | Zendy

L. Y. Yatsu | Zendy; Karl E. Espelie | Zendy; P.E. Kolattukudy | Zendy

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Ultrastructural and Chemical Evidence That the Cell Wall of Green Cotton Fiber Is Suberized

Author(s) -

L. Y. Yatsu,

Karl E. Espelie,

P.E. Kolattukudy

Publication year - 1983

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.73.2.521

Subject(s) - suberin , ultrastructure , depolymerization , cell wall , gossypium hirsutum , monomer , chemistry , fiber , trichome , polymer , secondary cell wall , botany , polymer chemistry , biology , organic chemistry , biochemistry

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.

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