Translocation in Pteridium |
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Authors: | WHITTLE CATHERINE M; MARSHALL BRENDA |
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Institution: | The Botany School, the University of Cambridge1 |
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Abstract: | The distributions of radioactivity with distance have been mappedin the rachis of Pteridium aquilinum at different times afterapplication of 14CO2 to a pinna. Profiles change in shape withtime, from wave to transition and then to diffusion. The apparentdiffusion constant of sucrose may be obtained from transitionand diffusion profiles. Values varied from 2.2 x 103to 3.6 x 102 cm2 sec1. These results are comparedwith those for various angiosperm species. |
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