SIGNIFICANCE AND TECHNIQUE OF SHORT-TERM EXPERIMENTS ON SOLUTE ABSORPTION BY PLANT TISSUE

Publisher Website
Google Scholar
Abstract
The significance of short-term absorption periods in experiments on solute absorption by plant tissues is discussed. A technique is described for such short-term experiments. As applied in experiments on ion absorption by barley roots, the technique permits accurate absorption rate determinations to be made in absorption periods of ten minutes or even less. The heterogeneity of cation uptake by this tissue is demonstrated. A readily exchangeable fraction is often present which must be accounted for if rates of metabolically active transport are to be determined.