Experiments have been performed on the effect of localised low (0°C) temperature application on solute concentration and fluxes in the sieve elements of willow. Sieve tube exudate was obtained via the severed stylets of the aphid Tuberolachnus salignus (Gmelin). In stem segments, low temperature caused a fall in both the concentration and flux of sucrose. No recovery was observed during a 24 h cold application period. The concentrations of ATP and potassium were generally also reduced, though the effect on the fluxes of these solutes was not as marked. Both ATP and potassium appear to be translocated along the sieve tubes of stem segments as evidenced by girdling experiments. In leafy cuttings low temperature consistently reduced the concentration of sucrose in the sieve tube exudate. These data are discussed in relation to previous work on low temperature effects on the phloem transport system of willow.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
Esau, K., Currier, H. B., Cheadle, V. I.: Physiology of phloem. Ann. Rev. Plant Physiol. 8, 349–374 (1957).
Ford, J., Peel, A. J.: The contributory length of sieve tubes in isolated segments of willow, and the effect on it of low temperatures. J. exp. Bot. 17, 522–533 (1966)
——: Preliminary experiments on the effect of temperature on the movement of 14C-labelled assimilates through the phloem of willow. J. exp. Bot. 18, 406–415 (1967).
Gardner, D. C. J., Peel, A. J.: ATP in sieve tube sap from willow. Nature (Lond.) 222, 774 (1969).
Peel, A. J., Weatherley, P. E.: Composition of sieve tube sap. Nature (Lond.) 184, 1955–1956 (1959).
Weatherley, P. E., Watson, B. T.: Some low-temperature effects on sieve tube translocation in Salix viminalis. Ann. Bot. 33, 845–853 (1969).
About this article
Cite this article
Gardner, D.C.J., Peel, A.J. The effect of low temperature on sucrose, ATP and potassium concentrations and fluxes in the sieve tubes of willow. Planta 102, 348–356 (1972). https://doi.org/10.1007/BF00386619
- Transport System
- Solute Concentration
- Temperature Effect