Co-localization of SCPB-like and FMRFamide-like immunoreactivities in crustacean nervous systems

Octopamine Modulates the Axons of Modulatory Projection Neurons

“…These data are consistent with a number of previous studies in both C. borealis and other species that reported immunostained punctate structures for amines and peptides in the stn-son junction (Marder et al, , 1987Callaway et al, 1987;Mortin and Marder, 1991;Kilman et al, 1999;Skiebe, 1999;Skiebe et al, 1999). These punctate structures are found within the nerve where most of the modulatory axons coming from the CoGs and the OG are located.…”

Synaptic neuropil in nerves of the crustacean stomatogastric nervous system: An immunocytochemical and electron microscopical study

“…The immunocytochemical data show that the extent of these varicosities varies depending on the peptide and the investigated species. In C. destructor, the patches containing peptide-immunoreactive varicosities in the stn-son junction are small compared with those marked by antibodies against peptides in the stn-son junction of crabs (Callaway et al, 1987;Marder et al, 1987) and the spiny lobster P. interruptus (Marder et al, 1987). These species differences are reflected in the synapsin-like staining of the three species investigated in this study.…”

“…Various methods have been used to describe varicosities or ramifications of neurons at the stn-son junction in numerous decapod crustaceans, including methylene blue staining (Orlov, 1928), nerve backfills with cobalt (Kushner, 1979), intracellular cobalt filling of identified neurons (Dickinson et al, 1981), and immunocytochemistry (Marder et al, 1986;Marder et al, 1987;Callaway et al, 1987;Goldberg et al, 1988;Mortin and Marder, 1991;Coleman et al, 1992;Parish et al, 1996;Skiebe, 1999a). The immunocytochemical data show that the extent of these varicosities varies depending on the peptide and the investigated species.…”

“…Intracellular cobalt fills of identified neurons with cell bodies located in the OG of the spiny lobster Jasus lalandii (Dickinson et al, 1981) revealed axons with arborizations in the stn-son junction. Numerous immunocytochemical studies have demonstrated peptide-immunoreactive varicosities in the stn-son junction of crabs, spiny lobsters, lobsters, and crayfish (Marder et al, 1986;Marder et al, 1987;Callaway et al, 1987;Goldberg et al, 1988;Mortin and Marder, 1991;Coleman et al, 1992;Skiebe, 1999a), but the size and location of these patches of varicosities vary depending on the peptide and on the species investigated. Peptide-immunoreactive varicosities along the stn have only been described for Panulirus interruptus (Mortin and Marder, 1991), and in the son only for Cancer productus and Cancer gracilus (Callaway et al, 1987;Parish et al, 1996).…”

Physiological functions of FMRFamide‐like peptides (FLPs) in crustaceans

“…FMRFamide-like immunoreactivity is associated with the stomatogastric nervous systems of several crustaceans, including the lobster H. americanus , the spiny lobster Panulirus interruptus (Marder et al, 1987), the crabs C. borealis (Christie et al, 1997;Marder et al, 1987), Cancer gracilus (Callaway et al, 1987) and Cancer irroratus (Hooper and Marder, 1984), the shrimp Palaemon serratus (Meyrand and Marder, 1991), and the crayfish Cherax destructor (Skiebe et al, 1999) and P. clarkii (Tierney et al, 1997). In all cases, the stomatogastric ganglion, which produces the motor outputs for rhythmic movements of the gastric mill and pylorus, contains dense FMRFamide-like or FLRFamide-like immunoreactivity in the neuropil.…”