Fig. 2. Calcium- and palmitate-induced swelling in winter wheat mitochondria under de-energized conditions. Experiments were at 26 C in isotonic KCl-based swelling buffer, pH 7.4 (traces a-f) and a medium containing 300 mM sucrose and 20 mM MOPS (pH 7.4) (trace g). Traces: a and g - mitochondria without any addition; b - mitochondria after preincubation with CsA; c - mitochondria after preincubation with Ca+2 ions; d - mitochondria after preincubation with CsA followed by the addition of Ca+2 ions; e - mitochondria after addition of palmitic acid; f - mitochondria after preincubation with CsA followed by the addition of palmitic acid. Results are represented as the mean of at least three determinations per experiment.