Journal
ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY
Volume 56, Issue 4, Pages 179-190Publisher
WILEY-LISS
DOI: 10.1002/arch.20010
Keywords
amines; receptor; neurohormonal; seratonin antagonist; serotonin agonist; Locusta migrotoria
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Serotonin increases the frequency and amplitude of spontaneous contractions and leads to an increase in the basal tonus of the locust oviducts. These effects were dose-dependent and were seen on both the non-innnervated and innervated portion of the oviducts. Vertebrate type serotonin agonists and antagonists were used and the profile shows that the receptors on the non-innervated and innervated portion of the oviducts are more similar to 5-HT3 receptors than to either 5-HT1 or 5-HT2 receptors. No serotonin was found associated with the oviducts or the innervation to the oviducts using immunohistochemistry and HPLC coupled to electrochemical detection, suggesting a neurohormonal role for serotonin in the control of locust oviducts. Arch. Insect Biochem. (C) 2004 Wiley-Liss, Inc.
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