...Patsy S. Dickinson; Sienna C. Kurland; Xuan Qu; Brett O. Parker; Anirudh Sreekrishnan; Molly A. Kwiatkowski; Alex H. Williams; Alexandra B. Ysasi; Andrew E. Christie ABSTRACT Many neuropeptides are members of peptide families, with multiple structurally similar isoforms frequently found even within...

... 23 6 2014 © 2014. Published by The Company of Biologists Ltd 2014 Locusta migratoria Peptide FGLa/AST Scanning ion-selective electrode technique Ion Ileum Hindgut Second messenger cAMP Sequencing Matrix-assisted laser desorption/ionization time-of-flight The ability...

.... * Author for correspondence ( [email protected] ) 15 2 2012 29 3 2012 © 2012. 2012 Daphnia pulex Daphnia magna Cladocera genome transcriptome neurohormone neurotransmitter peptide amine small molecule transmitter gas transmitter Over its geographic range...

...Daniel Kueh; John A. Jellies SUMMARY The heart excitor (HE) motor neuron in the leech Hirudo releases acetylcholine (ACh) and a peptide, FMRFamide, to regulate the contractile activity of the heart tube and associated side vessels. Consistent with Dale's principle, it was assumed that both...

... PepT1, the second teleost fish PepT1-type transporter documented to date,will contribute to the elucidation of the evolutionary and functional relationships among vertebrate peptide transporters. Moreover, it can represent a useful tool for the study of gut functional regionalization, as well...

... unexplored. In this review, I summarize the various factors that are known to affect female receptivity in the Lepidoptera to date, and briefly compare the function and similarity of the Pheromone Suppressing Peptide ( Hez PSP) in moths to that of the Sex Peptide in Drosophila melanogaster ( Drm SP...

... into the abdominal aorta, thereby, playing a role in the regulation of the blood distribution in Aplysia . Here, we show the contractility of the vasoconstrictor muscle is modulated by three types of endogenous peptides, Aplysia mytilus inhibitory peptide-related peptides (AMRP), enterin and NdWFamide...

.... * Author for correspondence (e-mail: [email protected] ) 16 4 2004 © The Company of Biologists Limited 2004 2004 peptide RFamide hormonal regulation development olfactory system Manduca sexta immunoreactivity The antennal lobe (AL) is the first integration...

.... The number and morphology of Inka cells can be very variable even in the same individuals or related insects, but all produce peptide hormones that are completely released at each ecdysis. Injection of tracheal extracts prepared from representatives of several insect orders induces pre-ecdysis and ecdysis...

... either by the application of an Aplysia cardioactive peptide,NdWFamide, or by the stimulation of a nerve innervating the aorta (the vulvar nerve). We found that the enterins activate the 4-aminopyridine(4-AP)-sensitive K + channels, and thereby hyperpolarize the membrane potential of the aortic muscles...

... . In search of this external stimulus, we performed Ussing chamber experiments to test several peptide hormones and neurotransmitters for their effect on Na + transport across leech dorsal integument. Although all the peptide hormones under investigation significantly affected ion transport across leech...

...James D. Baker; Susan L. McNabb; James W. Truman ABSTRACT In insects, ecdysis is thought to be controlled by the interaction between peptide hormones; in particular between ecdysis-triggering hormone (ETH) from the periphery and eclosion hormone (EH) and crustacean cardioactive peptide (CCAP) from...

... peptide act as diuretic factors. In other insects, members of the corticotropin-releasing factor (CRF)-related peptide family have been shown to play a role in post-feeding diuresis. Using fluorescence immunohistochemistry and immunogold labelling with antibodies to the Locusta CRF-like diuretic hormone...

... showed that peptide K + channel blockers from scorpion and snake have no effect on currents in muscle and nerve fibres from either scorpions or crayfish. The scorpion toxin kaliotoxin (KTX), a specific blocker of Kv1.1 and Kv1.3 K + channels, had no effect on muscle fibres of A. australis (2 μmol l −1...

... settlement and mud crab abdominal pumping (for larval dispersal) are stimulated by small peptide cues. In all the peptides examined that were active at ecologically relevant concentrations, arginine or lysine was found at the carboxy terminus, but the amino acids found at preceding positions were highly...

... reminiscent of the epitracheal Inka cells in the moth Manduca sexta . These Inka cells release the peptide ecdysis-triggering hormone, which helps elicit ecdysial behavior at the molt, and we show that they are also recognized by the myomodulin (MM) antibody. In both D. melanogaster and M. sexta , the PM...

...Ann Jane Tierney; Jennifer Blanck; A. Joffre Mercier ABSTRACT Whole-mount immunocytochemistry was used to map the location of FMRFamide-like peptides in the crayfish ( Procambarus clarkii ) stomatogastric nervous system. This system contains the pyloric and gastric mill central pattern generators...

...Timothy G. Kingan; William Gray; Duŝan žitňan; Michael E. Adams ABSTRACT Ecdysis behavior in the tobacco hornworm Manduca sexta (Lepidoptera: Sphingidae) is triggered through reciprocal peptide signaling between the central nervous system and the epitracheal endocrine system. Recent evidence...

... ganglion, the stomatogastric nervous system and the unpaired median nerves. Both amines and peptides have been suggested to play roles in the control of insect salivation, as indicated by their association with terminals on salivary glands, their effects in salivary gland bioassays and their ability...

.... transmembrane K + diffusion potential (inside negative) stimulated [ 14 C]Gly-Sar uptake above that observed with short-circuited vesicles, while an inwardly directed Na + gradient had no stimulatory effect on peptide uptake. [ 14 C]Gly-Sar influx (over 10 s) occurred by a low-affinity, saturable, proton...