Potassium Loss and Changes in the Fine Structure of Corn Root Tips Induced by H-ion |
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| Authors: | Marschner H Handley R Overstreet R |
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| Affiliation: | Department of Soils and Plant Nutrition, University of California, Berkeley, California 94720. |
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| Abstract: | The effects of H, Ca, and anaerobiosis upon loss of K to ambient solutions, upon changes in the fine structure, and upon the respiration of corn root tissue were studied. In the pH range 5.5 to 8.0 losses of K decreased with decreasing H concentration. Ca reduced K loss greatly in the lower part of the pH range but with increasing pH the effect of Ca declined. Losses of K under N2 were much greater than those measured under air but the same effects of H and Ca were found. The effect of phosphate upon K loss was found to depend upon pH, temperature and the state of development of the tissue. |
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