| Name: | EVL |
|---|---|
| Synonyms: | enveloping layer |
| Definition: | Outermost monolayer of cells surrounding the embryo that become very flattened in the blastula and give rise to the periderm. Sometimes used synonymously with periderm. |
| Ontology: | Anatomy Ontology [ZFA:0000086] |
| Name: | actomyosin contractile ring |
|---|---|
| Synonyms: | actomyosin ring, CAR, constriction ring, contractile actomyosin ring, cytokinetic ring |
| Definition: | A cytoskeletal structure composed of actin filaments and myosin that forms beneath the plasma membrane of many cells, including animal cells and yeast cells, in a plane perpendicular to the axis of the spindle, i.e. the cell division plane. In animal cells, the contractile ring is located at the cleavage furrow. In budding fungal cells, e.g. mitotic S. cerevisiae cells, the contractile ring forms at the mother-bud neck before mitosis. |
| Ontology: | GO: Cellular Component [GO:0005826] QuickGO AmiGO |