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Composition of Sieve-Tube Sap

Nature volume 184, pages 1955–1956 (1959)Cite this article

Abstract

SAP from the sieve-tubes of the willow Salix viminalis was obtained using the mouthparts of the willow aphid as described by Kennedy and Mittler1 and us2. As Mittler3 found, sucrose formed the main constituent of the total solids and so for routine concentration measurements, a refractometer calibrated directly in percentage sucrose was used. The sugar content was analysed by paper chromato-graphy, the total nitrogen content measured using a micro-kjeldahl method4 and the individual amino-acids present detected by paper chromatography.

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References

  1. Kennedy, J. S., and Mittler, T. E., Nature, 171, 528 (1953).

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  2. Weatherley, P. E., Peel, A. J., and Hill, G. P., J. Exp. Bot., 10, 1 (1959).

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  3. Mittler, T. E., J. Exp. Biol., 35, 74 (1958).

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  4. Shaw, J., and Beadle, L. C., J. Exp. Biol., 26, 15 (1949).

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  9. Block, R. J., Durrum, E. L., and Zweig, G., ‘Paper Chromatography and Paper Electrophoresis’, (Acad. Press. Inc. New York).

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Author notes

  1. A. J. PEEL

    Present address: Botany Department, University of Hull,

  2. P. E. WEATHERLEY

    Present address: Botany Department, St. Machar Drive, Old Aberdeen

Authors and Affiliations

  1. Department of Botany, The University, Nottingham,

    A. J. PEEL & P. E. WEATHERLEY

Authors
  1. A. J. PEEL
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  2. P. E. WEATHERLEY
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PEEL, A., WEATHERLEY, P. Composition of Sieve-Tube Sap. Nature 184, 1955–1956 (1959). https://doi.org/10.1038/1841955a0

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