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.
Department of Biology, Abo Akademi University, Finland.
M
M
Reuter
B
B
Joffe
I
I
Palmberg
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