Ultrastructural studies on the morula in cattle

Kuryszko, J.; Marcinkowski, K.

Zeitschrift für Mikroskopisch-Anatomische Forschung 104(3): 521-526

1990


ISSN/ISBN: 0044-3107
PMID: 2238797
Document Number: 358856
Embryos at morula stage were ultrastructurally examined. Blastomeres of normal embryos are characterized by the presence of ribosomes, short single and branched cisterns of endoplasmic reticulum, small spherical mitochondria and vacuolar-granular structures. An enhanced autophagy and the presence of numerous and large lipid droplets are signs of the beginning degeneration.

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