Figure 3.

Volume density (Vd) of various membrane and organellar components of the parietal cells of WT and 6 achlorhydric genotypes are shown. Significant differences from WT (P < .05): white bars; marginal significances (P < .1): grey bars; and WT, to which all comparisons were made, black. The number of animals used in each comparison is given in the upper left graph, and names of the genotypes are below the bottom graphs in each column. Total secretory membranes = TV + CAM + BLM, being all membranes involved in balanced transport activities directly involved in acid secretion.