[Nuclear magnetic resonance study of water in Nitella mucronata cells].

The properties of water contained in Nitella mucronata cells are examined by proton spin relaxation measurements. Two fractions of the cell water are observed. About 70% of cell water exhibits a longer relaxation time (T 1 congruent to 600 ms, T2 congruent to 300 ms), the exchange time of water molecules to and from hydration layer of macromolecules is equal to 0.