Search results for "Phylum Chordata"

A light and electron microscope study of spherical structures in the test cells of an ascidianCiona intestinalis L.

1984

Spherical structures in the test cells that surround the embryos of the ascidianCiona intestinalis L. (Tunicata, phylum Chordata) were studied by both light and electron microscope. Our data support the view that these structures are microorganism-like cells living in symbiosis with the test cells. Their possible role is discussed.