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- Title
Movement of C- and C-labelled Assimilate in Wheat Leaves: the Effect of IAA.
- Authors
BAUERMEISTER, ANNE; DALE, J. E.; WILLIAMS, E. J.; SCOBIE, J.
- Abstract
The rate of translocation of naturally-loaded, radiolabelled assimilate has been studied in leaves of wheat treated with IAA. The velocity was measured directly by following the movement of C-labelled material along the leaf. The kinetics of translocation were also estimated by using a two-compartment model to calculate the rate constant of disappearance of C from the fed area. IAA was applied at three different sites on the leaf and at various times up to 24 h before CO feeding. No effects of IAA were observed on: (1) direction and velocity of transport; (2) loading of assimilate into the phloem; or (3) the site and kinetics of unloading. These results are discussed with reference to the movement of IAA along the transport path and the use of different tissues as experimental systems.
- Publication
Journal of Experimental Botany, 1980, Vol 31, Issue 5, p1199
- ISSN
0022-0957
- Publication type
Article