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J Exp Biol (2012) 215 (19): 3394–3402.
Published: 1 October 2012
... examined the role of a locust FGLa/AST (Scg-AST-6) in the gut. Proctolin and Scg-AST-6 have opposing effects on gut contraction, where proctolin dose-dependently increases gut muscle tension, while Scg-AST-6 inhibits both muscle tension and spontaneous and neurogenic contractions in a dose-dependent manner...
J Exp Biol (2005) 208 (4): 737–747.
Published: 15 February 2005
...J. L. Wilkens; T. Shinozaki; T. Yazawa; H. E. D. J. ter Keurs SUMMARY At the threshold concentration (1-10 pmol l -1 ), the neuropeptide hormones proctolin (PR) and the FLRFamide-like peptide (FLP) F 2 cause an increase in amplitude of electrically evoked contractions (each contraction is a brief...
J Exp Biol (2004) 207 (21): 3731–3739.
Published: 1 October 2004
...% reduction of the voltage at 10 –7 mol l –1 . A. aegypti neuropeptide F and proctolin reduced V te at submicromolar concentrations. At 10 –6 mol l –1 ,neuropeptide F reduced V te by 30% and proctolin reduced V te by 50%. In contrast, A. aegypti allatotropin, A. aegypti head peptides I and III and A. aegypti...
J Exp Biol (1990) 152 (1): 485–504.
Published: 1 September 1990
...VALERIE M. PASZTOR; DAVID L. MACMILLAN A comparative survey is presented of the responsiveness of crustacean mechanoreceptors to the neurohormones proctolin, octopamine and serotonin. Seven identifiable primary afferents were examined in the crayfish Cherax destructor and the lobster Homarus...
J Exp Biol (1986) 124 (1): 115–141.
Published: 1 September 1986
... that alter motoneuronal output. We have localized serotonin to identified neurones in the lobster ventral nerve cord and have shown further that the pentapeptide proctolin coexists with the amine in these cells. Such neuronesprovide a convenient system in which to study the functional interactions between...
J Exp Biol (1984) 111 (1): 123–130.
Published: 1 July 1984
...TAKETERU KURAMOTO; ARINOBU EBARA 1. Systolic pressure in the abdominal artery of the lobster Panulirus japonicus (Von Siebold) was decreased by contraction of the cardioarterial valve located at the posterior exit of the heart. Crustacean neurohormones, octopamine and proctolin, induced rhythmic...
J Exp Biol (1983) 103 (1): 55–73.
Published: 1 March 1983
...W. H. Watson, III; G. J. Augustine; J. A. Benson; R. E. Sullivan 1. Synthetic proctolin increases the force but not the rate of heart contractions of Limulus in a time- and dose-dependent manner. The threshold of this effect is 3 × 10 −10 M and the ED 50 is approximately 10 −8 M. 2...