Translocation of Organic Substances in Trees. III. The Removal of Sugars from the Sieve Tubes in the White Ash (Fraxinus Americana L.).

@article{Zimmermann1958TranslocationOO,
  title={Translocation of Organic Substances in Trees. III. The Removal of Sugars from the Sieve Tubes in the White Ash (Fraxinus Americana L.).},
  author={Martin H. Zimmermann},
  journal={Plant physiology},
  year={1958},
  volume={33 3},
  pages={213-7}
}
It has been shown by various investigators that the substances in the sieve tubes are qualitatively the same throughout the plant. This, together with a number of physiological observations, seems to suggest that substances move through the sieve tubes without their being metabolized (2, 8, 23). There is good evidence, however, that the movement over the short distance from the leaf parenchyma to the sieve tubes is an active process. It has been shown by Phillis and AMason (13) that the sugar… CONTINUE READING