Preliminary Experiments on the Effect of Temperature on the Movement of14C-labelled Assimilates through the Phloem of Willow
- 1 August 1967
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Experimental Botany
- Vol. 18 (3) , 406-415
- https://doi.org/10.1093/jxb/18.3.406
Abstract
Experiments were performed on both young shoots of willow (3–5 weeks old) and mature stems which had been growing for a period of 2–3 years. 14CO2 was supplied to the leaves, and the mass transport of the labelled assimilates through a portion of the stem enclosed in a temperature-controlled jacket was measured by determining the slope of the rise in the activity of huneydew collected from a colony of the aphid Tuberolachnus salignus (Gmelin). It was found that there was a marked difference in the behaviour of the young shoots and mature stems. In the former, a fall in temperature slowed the transport, whilst in the latter a comparable fall in temperature increased the transport. Possible causes for these effects have been suggested, and the results are discussed in relation to published work on temperature effects.This publication has 1 reference indexed in Scilit:
- Translocation and TemperatureAnnals of Botany, 1964