ULTRASTRUCTURE OF THE ECTODERMIC AMPULLAE IN THE LARVAE OF TWO ASCIDIAN SPECIES (<i>TUNICATA</i>)

Authors

  • Xavier Turon
Keywords: ultrastructure, ectodermal ampullae, attachment, larvae of ascidians, <i>Diplosoma spongiforme, Polysyncraton lacazei</i>

Abstract

The ultrastructure of the ectodermic ampullae in the larvae of Diplosoma spongiforme (Giard) and Polysyncraton lacazei (Giard) (family Didemnidae) is studied. These organs are tubular in shape and are made up of secretory cells in both species. The ampullae of Diplosoma spongiforme produce a dark secretion at their distal end, whereas the cells in their lateral walls undergo a process of vacuolation. These features are not found in Polysyncraton lacazei. The postmetamorphic development of the ampullae is different in both species. The possible role of the arnpullae in tunic supply and attachment is discussed.

Downloads

Download data is not yet available.
How to Cite
Turon, X. (1990). ULTRASTRUCTURE OF THE ECTODERMIC AMPULLAE IN THE LARVAE OF TWO ASCIDIAN SPECIES (<i>TUNICATA</i>). Anales de Biología, (16), 63–70. Retrieved from https://revistas.um.es/analesbio/article/view/33261
Issue
Section
Biología animal