Water Relations of Nitella Translucens

Abstract

Volume changes in interodal cells of Nitella translucens have been measured by three methods: weight changes, static length changes and kinetic changes. We have obtained consistent results by the different methods which indicate that the volume change between incipient plasmolysis and full turgor is usually in the range 2 1/2–5 per cent. In addition, our confirm the values for the hydraulic conductivity (L_p) of these cells which have previously been obtained in transcellular osmosis experiments, and we have observed an apparent polarity of L_p similar to that found in these experiments.