Oxidation of Malonate by Peanut Mitochondria.

Abstract

TIP -Ca +Ca -Ca + Ca -Ca + Ca 0-5 0.34 0.89 8.73 3.01 1.48 0.51 5-15 0.44 0.44 2.36 0.77 3.60 1.18 15-25 0.47 0.32 1.63 0.71 3.17 1.38 25-35 0.55 0.11 1.77 1.01 2.74 1.57Entire root 0.51 0.19 2.50 1.99 ... ... *Mean values from 4 expts.Values for entire pri- mary roots were taken from a prexvious report (2) and inserted here for purpose of Comparison.absence of calcium it rises with increasing cell ma- turity; conversely, in the presence of calcium it falls.In the tip section calcium decreases the affinity be- tween potassium and its carrier; in the more basal sections the affinity is increased.