The nucleus negatively controls the synthesis of mitochondrial proteins in the sea urchin egg.
Enucleation of Paracentrotus lividus eggs, followed by parthenogenetic activation induces a sharp increase in the synthesis of mitochondrial proteins as shown by electrofluorography after in vivo labeling with radioactive amino acids. These results further substantiate the hypothesis that the cell nucleus negatively controls mitochondrial replication in the sea urchin egg.
D000596:Amino Acids / Q000378:metabolism; D000818:Animals; D002467:Cell Nucleus / Q000502:physiology*; D004591:Electrophoresis, Polyacrylamide Gel; D005260:Female; D008928:Mitochondria / Q000378:metabolism*; D010063:Ovum / Q000378:metabolism* / Q000648:ultrastructure; D010312:Parthenogenesis; D014176:Protein Biosynthesis; D011506:Proteins / Q000032:analysis; D012617:Sea Urchins
D000596:Amino Acids; D011506:Proteins