Figure 4
From: The extracellular matrix of porcine mature oocytes: Origin, composition and presumptive roles
Light microscope autoradiography of oocytes incubated after GVBD for 3 hrs in the presence of 3H-glucosamine and chased until MII after initiation of maturation in vivo (a, b, c) or in vitro (d). bar = 5 μm. a and b : successive semi-thin sections show similar label accumulation in the PVS (*) around the first polar body (PB).c : accumulation in the PVS (*) away from the polar body.d : after complete in vitro maturation, the PVS (*) is also heavily labeled. Some grains are found around remaining cumulus cells (C).