title: Ultrastructural aspects of the endoderm cells of the Ciona intestinalis embryo during the tail lengthening phase.
mesh_terms: D000818:Animals; D002938:Ciona intestinalis / Q000648:ultrastructure*; D004625:Embryo, Nonmammalian / Q000502:physiology / Q000648:ultrastructure*; D014561:Urochordata / Q000648:ultrastructure*