Sensory receptors in the head of Stenostomum leucops. II. Localization of catecholaminergic histofluorescence-ultrastructure of surface receptors.
The ultrastructure of three types of sense receptors in the anterior end of Stenostomum leucops is described. Type I is characterized by abundant branching microvilli and ciliary rootlets but a lack of cilia. Type II possesses a short cilium with aberrant axonema. Type III has a cilium protruding from an invagination, a long rootlet and a collar of microvilli. The glyoxylic-acid-induced fluorescence method reveals catecholaminergic (CA) fluorescence in surface cells of the anterior end. The relationship between the CA fluorescence and the localization of the sense receptors is discussed.
Reuter
M
M
Department of Biology, Abo Akademi University, Finland.
Joffe
B
B
Palmberg
I
I
D000818:Animals; D002395:Catecholamines / Q000032:analysis*; D008854:Microscopy, Electron; D008856:Microscopy, Fluorescence; D008871:Microvilli / Q000648:ultrastructure; D009412:Nerve Fibers / Q000648:ultrastructure; D009420:Nervous System / Q000166:cytology; D011984:Sensory Receptor Cells / Q000648:ultrastructure*; D014419:Turbellaria / Q000166:cytology / Q000648:ultrastructure*
D002395:Catecholamines