Localization of pigment-dispersing hormone (PDH) immunoreactivity in the central nervous system of Carcinus maenas and Orconectes limosus (Crustacea), with reference to FMRFamide immunoreactivity in O. limosus

  title={Localization of pigment-dispersing hormone (PDH) immunoreactivity in the central nervous system of Carcinus maenas and Orconectes limosus (Crustacea), with reference to FMRFamide immunoreactivity in O. limosus},
  author={Sigrid Mangerich and Rainer Keller},
  journal={Cell and Tissue Research},
SummaryBy use of antisera raised against synthetic pigment-dispersing hormone (PDH) of Uca pugilator and FMRFamide, the distribution of immunoreactive structures in the central nervous system (CNS) of Carcinus maenas and Orconectes limosus was studied by light microscopy. In both species, a total of 10–12 PDH-positive perikarya occur amongst the anterior medial, dorsal lateral and angular somata of the cerebral ganglion (CG). In C. maenas, one PDH-perikaryon was found in each commissural… 
Differential distribution of β-pigment-dispersing hormone (β-PDH)-like immunoreactivity in the stomatogastric nervous system of five species of decapod crustaceans
In all 5 species, cell bodies, processes, and neuropil within the paired circumesophageal ganglia (CGs) showed PDH-like staining; the pattern of this staining was unique for each species, implying some degree of evolutionary diversity among these crustaceans.
Pigment-dispersing hormone-immunoreactive neurons and their relation to serotonergic neurons in the blowfly and cockroach visual system
The distribution and morphology of serotonin-immunoreactive neurons in the cockroach lamina was found to be very similar to the PDH-IR ones, which may be candidates for regulating large numbers of units in the visual system.
The distribution of APGWamide and RFamides in the central nervous system and ovary of the giant freshwater prawn, Macrobrachium rosenbergii
Immunohistochemical locations of the APGWamide-like and RF-like peptides in the eyestalk indicate that these neuropeptides could modulate the release of the neurohormones in the sinus gland, and the presence of RFamide- like peptide in the thoracic and abdominal ganglia suggests that it may act as a neurotransmitter which controls muscular contractions.
Neuroanatomy of the optic ganglia and central brain of the water flea Daphnia magna (Crustacea, Cladocera)
We reveal the neuroanatomy of the optic ganglia and central brain in the water flea Daphnia magna by use of classical neuroanatomical techniques such as semi-thin sectioning and neuronal backfilling,
Development of pigment-dispersing hormone-immunoreactive neurons in the American lobster: homology to the insect circadian pacemaker system?
The results indicate that, in view of the position of the neuronal somata and projection patterns of their neurites, the immunolabelled medulla neurons in insects have homologous counterparts in the crustacean eyestalk.
Localization of neurons expressing choline acetyltransferase, serotonin and/or FMRFamide in the central nervous system of the decapod shore crab Hemigrapsus sanguineus.
This study characterized the distributions and potential colocalization of choline acetyltransferase (ChAT), serotonin (5-HT) and neuropeptide H-Phe-Met-Arg-P he-NH2 (FMRFamide) in the central nervous system (CNS) of the Asian shore crab, Hemigrapsus sanguineus using immunohistochemical analyses in combination with laser scanning confocal microscopy.
Neuronal classification and distribution in the central nervous system of the female mud crab, Scylla olivacea
It is found that the anatomical structure of the brain is similar to other crabs, but the ventral nerve cord (VNC) is unlike other caridian and dendrobrachiate decapods, as the subesophageal, thoracic and abdominal ganglia are fused, due to the reduction of abdominal segments and the tail.
Immunocytochemical Localization of Enzymes Involved in Dopamine, Serotonin, and Acetylcholine Synthesis in the Optic Neuropils and Neuroendocrine System of Eyestalks of Paralithodes camtschaticus
Findings establish the presence of several neurotransmitters in the XO-SG complex of P. camtschaticus and localization of 5-HT- and ChAT-positive cells in the SG indicated that these neurotransmitter locally modulate the secretion of neurohormones that are synthesized in theXO.
Pigment-dispersing hormone in Daphnia interneurons, one type homologous to insect clock neurons displaying circadian rhythmicity
This simple PDH system shows striking homologies to PDH systems in decapod crustaceans and well-known clock neurons in several insects, which suggests evolutionary conservation of an ancient peptidergic interneuronal system that is part of biological clocks.


Immunocytochemical identification of structures containing putative red pigment-concentrating hormone in two species of decapod crustaceans
Both neuropeptides in distinct neurosecretory pathways were demonstrated, consisting of perikarya, axons and terminals in the neurohemal organ, the sinus gland, and in the brain and thoracic ganglion of C. maenas and Orconectes limosus.
The ultrastructure of nerve endings containing pigment-dispersing hormone (PDH) in crustacean sinus glands: Identification by an antiserum against a synthetic PDH
The antigen demonstrated by immunocytochemistry is identical or very similar to one of the known PDHs, which is coincident with a zone of biological activity.
5-HT-like immunoreactivity in the central nervous system of the crayfish, Pacifastacus leniusculus
An immunocytochemical technique with the use of three different antibodies raised against serotonin was applied to localize the immunoreactive neurons in the central nervous system of the crayfish, Pacifastacus leniusculus, finding that they are largely localized in the same areas of thecentral nervous system as the catecholaminergic neurons.
The immunocytochemical and physiological data suggest that RPCH or a similar molecule is a neurally released modulator of the stomatogastric nervous system of the crab, Cancer borealis.
Distribution and partial characterization of FMRFamide‐like peptides in the stomatogastric nervous systems of the rock crab, Cancer borealis, and the spiny lobster, Panulirus interruptus
The distribution of FMRFamide‐like peptides was studied in the complete Stomatogastric nervous system of the spiny lobster Panulirus interruptus and the rock crab Cancer borealis by using immunocytochemical techniques.
ACTH-like immunoreactivity in two electronically coupled giant neurons in the pond snail Lymnaea stagnalis.
It was demonstrated that in the central nervous system of the pond snail numerous peptidergic neurons occur in addition to those identified with the classical staining methods for neurosecretion.
A progress report on the separation and purification of crustacean neurosecretory pigmentary-effector hormones.
Differentiation of chromatophorotropins from the prawn, Palaemonetes vulgaris, and the fiddler crab, Uca pugilator
It was evident that dispersion of the red pigment and melanin dispersion in the fiddler crab were caused by different substances, when extracts of organs from Palaemonetes vulgaris as well as from Uca pugilator were tested.
Purified hormones from the crustacean eyestalk and their physiological specificity
A third well characterised hormone, hyperglycaemic hormone (HGH), increases glucose concentration of the blood, but such hyper glycaemic responses may vary in cross tests among crustacean species4–6.