Summary
The uptake and accumulation of phosphorus by mycorrhizal and nonmycorrhizal onion plants were compared. The results of the experiments indicate:
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1.
Mycorrhizal onion plants accumulated significantly more phosphorus in the roots and tops than nonmycorrhizal plants.
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2.
Vesicular-arbuscular mycorrhizae are sites of increased phosphorus accumulation compared to nonmycorrhizal roots.
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3.
A fungitoxicant (parachloronitrobenzene) reduced phosphate accumulation by mycorrhizae but did not significantly affect phosphate accumulation by nonmycorrhizal roots.
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Research Plant Pathologist U.S.D.A., A.R.S., Urbana, Illinois formerly graduate student in Plant Pathology at the University of Illinois. Submitted as portion of Ph.D. thesis.
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Gray, L.E., Gerdemann, J.W. Uptake of phosphorus-32 by vesicular-arbuscular mycorrhizae. Plant Soil 30, 415–422 (1969). https://doi.org/10.1007/BF01881967
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DOI: https://doi.org/10.1007/BF01881967