The Translocation of Radioactive Phosphorus by the Aquatic Vascular Plant Najas Minor

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1977-03

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Abstract

The translocation of phosphorus by the aquatic vascular plant Najas minor All. was examined using radiophosphorus (32P). Whole plants showed a lack of phosphorus translocation either from the root to the shoot or in the reciprocal direction. Autoradiographic experiments indicated that the lack of translocation may be due to a very slow movement of this nutrient in both the root and the shoot. Phosphorous was calculated to move 0.6 mm/hr in roots and 1.2 mm/hr in foliage presumably through cells rather than in the vascular system.

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Author Institution: Department Biology, Case Western Reserve University

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The Ohio Journal of Science. v77, n2 (March, 1977), 76-80