Letter | Published:

Staining Reaction of the Pit Membrane of Wood Cells

Naturevolume 191pages409410 (1961) | Download Citation



IN a recent paper Harada and Wardrop1 report that the lignin content of the ray parenchyma cell walls of Cryptomeria japonica (Linnæus fil.) Don. is about 43.5 per cent and also that the lignin is distributed nearly uniformly through the cell walls. In view of the bearing on their observations and also the possible relation to the movement of materials through wood, the results of the reaction of the pit membrane when wood sections are treated with differential stains are recorded.

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  1. 1

    Harada, H., and Wardrop, A. B., J. Jap. Wood Res. Soc., 6, 34 (1960).

  2. 2

    Johansen, D. A., Plant Microtechnique (McGraw-Hill, New York, 1940).

  3. 3

    Wardrop, A. B., and Bland, D. E., Fourth International Congress of Biochemistry, Vol. 2, 92 (Pergamon Press, London, 1959).

  4. 4

    Liese, W., Holz als Roh- und Werkstoff, 15, 449 (1957).

  5. 5

    Harada, H., Miyazaki, Y., and Wakashima, T., Bull. Gov. For. Exp. Sta., 104, 115 (1958).

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  1. Division of Wood Technology, Forestry Commission of New South Wales, Sydney

    • R. K. BAMBER


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