Lipid Biosynthesis in Epidermal, Guard and Mesophyll Cell Protoplasts from Leaves of Vicia faba L

  • Naoki Sato


Epidermis is known to be the site of synthesis of long-chain fatty acids which are supposed to be precursors to components of epicuticular wax1. Epidermis of leaf tissue is composed of epidermal cells and guard cells, which are different in cellular architecture, including plastid morphology: plastid development is generally repressed in epidermal cells while guard cell chloroplasts are active in photosynthesis and starch synthesis. In the light of the current view that the plastid is the sole site of synthesis of fatty acids, I suspected that epidermal and guard cells are quite different in ability to synthesize long-chain fatty acids.


Epidermal Cell Guard Cell Lipid Biosynthesis Starch Synthesis Acyl Moiety 
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  1. 1.
    P.E. Kolattukudy, Further evidence for an elongation-decarboxylation mechanism in the biosynthesis of paraffins in leaves, Plant Physiol, 43: 375 (1968).PubMedCrossRefGoogle Scholar
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    N. Sato, Lipid biosynthesis in epidermal, guard and mesophyll cell protoplasts from leaves of Vicia faba L., Plant Cell Physiol., 26: 805 (1985).Google Scholar
  3. 3.
    M. S. Webb and J. P. Williams, Changes in the lipid and fatty acid composition of Vicia faba mesophyll protoplasts induced by isolation, Plant Cell Physiol., 25: 1541 (1984).Google Scholar

Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Naoki Sato
    • 1
  1. 1.Department of Botany, Faculty of ScienceUniversity of TokyoHongo, Bunkyo-ku, Tokyo 113Japan

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