Catherine M. Whittle

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The profile of 14C, that is the plot of log (radioactivity) against distance, down the stem of Helianthus seedlings was studied over the course of the first hour after feeding 14C to a leaf. These seedlings are shown to accumulate a large proportion of the total 14C present in the stem in an ethanol insoluble form. The effect of this accumulation on the(More)
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