Segregation of mitochondria in the cytoplasm of Xenopus vitellogenic oocytes.
In actively growing vitellogenic oocytes of Xenopus laevis mitochondria segregate into 2 populations. One stays around the nucleus, actively replicates mitochondrial DNA (mtDNA), and builds up most of the stock of the mitochondria in the full-grown oocyte. The other moves toward the vegetal pole and stops replicating mtDNA early in vitellogenesis. Organelles of this population are components of the germ plasm of the cell.
D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D004261:DNA Replication; D004272:DNA, Mitochondrial / Q000235:genetics; D005260:Female; D008928:Mitochondria / Q000648:ultrastructure*; D009865:Oocytes / Q000166:cytology / Q000648:ultrastructure*; D014818:Vitellogenesis; D014982:Xenopus laevis
D004272:DNA, Mitochondrial