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Immunohistochemical localization of serotonin and choline acetyltransferase in sensory neurones of the locust
Author(s) -
Lutz E. M.,
Tyrer N. M.
Publication year - 1988
Publication title -
journal of comparative neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.855
H-Index - 209
eISSN - 1096-9861
pISSN - 0021-9967
DOI - 10.1002/cne.902670304
Subject(s) - choline acetyltransferase , biology , mechanoreceptor , locust , sensory receptor , sensory system , serotonin , cholinergic , serotonergic , schistocerca , anatomy , neuroscience , receptor , 5 ht receptor , microbiology and biotechnology , biochemistry , botany
Abstract Sensory neuronal cell bodies in the leg of locust, Schistocerca gregaria , were visualized with antibodies to locust choline acetyltransferase and with antibodies to serotonin by the avidin‐biotin peroxidase technique. Two groups of sensory cells react with the antibody to choline acetyltransferase: One group is associated with external mechanoreceptors (i.e., hair‐plate hairs and campaniform sensilla) and the other with internal proprioceptors (i.e., chordotonal organs and multiterminal receptors). Sensory cells which react with the antibody to serotonin are associated only with internal proprioceptors being found in both chordotonal organs and multiterminal receptors. In the metathoracic femoral chordotonal organ indirect evidence suggests that some sensory cells are reactive to both antibodies. Some multiterminal receptors react with anti‐choline‐acetyltransferase, while others react with antiserotonin. These results support the conclusion that most insect sensory neurones are cholinergic but some are serotoninergic.