ISSN:
1432-0878
Keywords:
Endocrine cells
;
Calcitonin
;
Ascidian (Styela clava)
;
Immunofluorescence
;
Electron microscopy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary A small group of granulated endocrine cells have been described in the endostylar region of the pharynx in Styela. These cells are argyrophilic and exhibit calcitonin-like immunofluorescence. Tests with antisera to other peptides all proved negative. Cells from animals exposed to elevated calcium levels showed a degree of degranulation. The possibility that these cells may represent ancestral ultimobranchial “C” cells is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00237244