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Filtering by: Subject Sea urchins Advisor Harris, Patricia

An ultrastructure study of oogenesis in the sea urchin, Strongylocentrotus purpuratus

Creator:

Chatlynne, Louise Geller

Abstract:

Oogenesis in the sea urchin Strongylocentrotus purpuratus was studied at the fine structural level, with special emphasis on the relationship between the two main cell types within the ovary: the egg cells and the nutritive phagocytes, or accessory cells. The nutritive phagocytes are flagellated cells with extensive pseudopods which store...

Resource Type:

Dissertation

Full Text:

An ultrastructure study of oogenesis in the sea urchin
The morphological events during the self-reassembly of the sea urchin embryo in culture

Creator:

Hamada, Spencer Hiroshi

Abstract:

The gastrula of the sea urchin Strongylocentrotus purpuratus was dissociated into single cells. In culture these cells appeared apolar, but reassembled into quasi-normal embryos composed of structures with polarized cells. In this study emphasis was placed on those morphological events coincident with the reestablishment of a polar orientation within the...

Resource Type:

Dissertation

Full Text:

sea urchin embryo in culture AN ABSTRACT OF THE THESIS OF Spencer Hiroshi Hamada for the degree of