The development of the oocyst of the rodent malarial parasite, Plasmodium berghd, in the mos- quito was studied by electron microscopy. During this development, a condensation of cross-striated fibers occurs in the Feulgen-positive periphery of nuclei which are close to the surface of the oocyst. Concomitant with the appearance of these fibers, fragments of a new cytoplasmic membrane are formed a short distance away. These changes appear to represent nucleocytoplasmic interactions during development.
Vanderberg, J., & Rhodin, J. (1967). Differentiation of nuclear and cytoplasmic fine structure during sporogonic development of Plasmodium berghei. Journal of Cell Biology, 32(3). https://doi.org/10.1083/jcb.32.3.c7