FIGS. 1–2. Transmission electron micrographs of longitudinal sections through Aspergillus nidulans septa. 1. Mature septum with five Woronin bodies (arrowheads) near central pore. Arrow indicates possible fibrous connection between Woronin body and septum. Asterisk indicates ribosome-free area surrounding Woronin body. Bar = 0.25 µm. 2. Septal Woronin body labeled with affinity-purified antibodies against Hex1 and secondary anti-rabbit antibody coupled to 10 nm gold particles. Note membrane surrounding Woronin body (small arrow). Inset: Same image overexposed to better show gold particles. Bar = 0.125 µm
