Confocal laser scanning microscopy (CLSM) images of PLCβ2-LIR (PLCβ2) in taste buds of rat or mouse circumvallate papillae. Longitudinal sections show a large subset of taste cells expressing PLCβ2 in rat (A) and mouse taste buds (B). The PLCβ2-LIR taste cells are spindle-shaped with large, round nuclei. Transverse sections show PLCβ2-LIR in rat (C-E) and mouse taste buds (F-H). The immunoreactivity is restricted to the cytoplasm in both transverse and longitudinal sections. Immunoreactive taste cells (red) are shown in C and F. Sytox-stained nuclei (green) are shown in D and G and merges are shown in E and H. Scale bars = 20 μm.