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RESEARCH PRODUCT
Cytochrome oxidase activity in the mitochondria of unfertilized and fertilized sea urchin eggs
Rachele Maggiosubject
biologyZygoteCytochrome cCell BiologyMitochondrionbiology.organism_classificationBlastulaParacentrotus lividusMitochondriaElectron Transport Complex IVHuman fertilizationCytochrome oxidase activityBiochemistrySea Urchinsbiology.animalembryonic structuresbiology.proteinAnimalsCytochrome c oxidaseOxidoreductasesSea urchinOvumdescription
Abstract The cytochrome oxidase activity of isolated mitochondria of unfertilized and fertilized eggs of Paracentrotus lividus has been studied. It has been found that whereas in the mitochondria of unfertilized eggs saturation is reached at a cytochrome c concentration of 3.28 × 10−5 M, in those of fertilized eggs this occurs at a concentration of 5.74 × 10−5 M. It is shown that upon fertilization an increase of about 30 per cent of the activity of cytochrome oxidase takes place and no further changes appear to occur until blastula stage.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1959-02-01 | Experimental Cell Research |