Figure 2.

A portion of the posterior arm of the gonad. Fluorescence of tetramethylrhodamine, dextran 10,000 MW (red image) and Calcium Green-1, dextran 10,000 MW (green image) simultaneously measured in an injected animal. A single z-section constitutes this confocal image. The white arrow indicates the proximal oocyte, i.e., the oocyte nearest the entrance to the spermatheca. Blue arrows indicate developing embryos within the uterus. Pink arrows indicate the syncytial gonad in which pachytene nuclei line the walls of the syncytium. Yellow arrows denote maturing oocytes. The asterisk (*) denotes the spermatheca.