Crustacean cardioactive peptide-immunoreactive neurons innervating brain neuropils, retrocerebral complex and stomatogastric nervous system of the locust, Locusta migratoria

1995 ◽  
Vol 279 (3) ◽  
pp. 495-515 ◽  
Author(s):  
Heinrich Dircksen ◽  
Uwe Homberg
Keyword(s):  
Nervous System ◽  
Locusta Migratoria ◽  
Stomatogastric Nervous System ◽  
Crustacean Cardioactive Peptide

Occurrence of crustacean cardioactive peptide (CCAP) in the nervous system of an insect,Locusta migratoria

1989 ◽  
Vol 159 (1) ◽  
pp. 5-11 ◽  
Author(s):  
J. Stangier ◽  
C. Hilbich ◽  
R. Keller
Keyword(s):  
Nervous System ◽  
Locusta Migratoria ◽  
Crustacean Cardioactive Peptide

Identification, physiological actions, and distribution of VYRKPPFNGSIFamide (Val1-SIFamide) in the stomatogastric nervous system of the American lobsterHomarus americanus

2006 ◽  
Vol 496 (3) ◽  
pp. 406-421 ◽  
Author(s):  
Andrew E. Christie ◽  
Elizabeth A. Stemmler ◽  
Braulio Peguero ◽  
Daniel I. Messinger ◽  
Heather L. Provencher ◽  
...  
Keyword(s):  
Nervous System ◽  
Stomatogastric Nervous System

scholarly journals The complexity of small circuits: the stomatogastric nervous system

2016 ◽  
Vol 41 ◽  
pp. 1-7 ◽  
Author(s):  
Nelly Daur ◽  
Farzan Nadim ◽  
Dirk Bucher
Keyword(s):  
Nervous System ◽  
Stomatogastric Nervous System

IDENTIFICATION, SEQUENCE AND EXPRESSION OF A CRUSTACEAN CARDIOACTIVE PEPTIDE (CCAP) GENE IN THE MOTHMANDUCA SEXTA

2001 ◽  
Vol 204 (16) ◽  
pp. 2803-2816 ◽  
Author(s):  
P. K. LOI ◽  
S. A. EMMAL ◽  
Y. PARK ◽  
N. J. TUBLITZ
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Gene Structure ◽  
Expression Patterns ◽  
Amino Acid Residues ◽  
Coding Region ◽  
Genome Database ◽  
Reading Frame ◽  
Crustacean Cardioactive Peptide ◽  
Embryonic Life

SUMMARYThe crustacean cardioactive peptide (CCAP) gene was isolated from the tobacco hawkmoth Manduca sexta. The gene has an open reading frame of 125 amino acid residues containing a single, complete copy of CCAP. Analysis of the gene structure revealed three introns interrupting the coding region. A comparison of the M. sexta CCAP gene with the Drosophila melanogaster genome database reveals significant similarities in sequence and gene structure.The spatial and temporal expression patterns of the CCAP gene in the M. sexta central nervous system were determined in all major post-embryonic stages using in situ hybridization techniques. The CCAP gene is expressed in a total of 116 neurons in the post-embryonic M. sextacentral nervous system. Nine pairs of cells are observed in the brain, 4.5 pairs in the subesophageal ganglion, three pairs in each thoracic ganglion(T1-T3), three pairs in the first abdominal ganglion (A1), five pairs each in the second to sixth abdominal ganglia (A2-A6) and 7.5 pairs in the terminal ganglion. The CCAP gene is expressed in every ganglion in each post-embryonic stage, except in the thoracic ganglia of first- and second-instar larvae. The number of cells expressing the CCAP gene varies during post-embryonic life,starting at 52 cells in the first instar and reaching a maximum of 116 shortly after pupation. One set of thoracic neurons expressing CCAP mRNA shows unusual variability in expression levels immediately prior to larval ecdysis. Using previously published CCAP immunocytochemical data, it was determined that 91 of 95 CCAP-immunopositive neurons in the M. sexta central nervous system also express the M. sexta CCAP gene, indicating that there is likely to be only a single CCAP gene in M. sexta.

Peptidergic modulation of a multioscillator system in the lobster. I. Activation of the cardiac sac motor pattern by the neuropeptides proctolin and red pigment-concentrating hormone

1989 ◽  
Vol 61 (4) ◽  
pp. 833-844 ◽  
Author(s):  
P. S. Dickinson ◽  
E. Marder
Keyword(s):  
Nervous System ◽  
Motor Neurons ◽  
Motor Pattern ◽  
Stomatogastric Ganglion ◽  
Red Pigment ◽  
Stomatogastric Nervous System ◽  
Two Phase ◽  
Motor Patterns ◽  
Neuronal Element

1. The cardiac sac motor pattern consists of slow and irregular impulse bursts in the motor neurons [cardiac sac dilator 1 and 2 (CD1 and CD2)] that innervate the dilator muscles of the cardiac sac region of the crustacean foregut. 2. The effects of the peptides, proctolin and red pigment-concentrating hormone (RPCH), on the cardiac sac motor patterns produced by in vitro preparations of the combined stomatogastric nervous system [the stomatogastric ganglion (STG), the paired commissural ganglia (CGs), and the oesophageal ganglion (OG)] were studied. 3. Bath applications of either RPCH or proctolin activated the cardiac sac motor pattern when this motor pattern was not already active and increased the frequency of the cardiac sac motor pattern in slowly active preparations. 4. The somata of CD1 and CD2 are located in the esophageal and stomatogastric ganglia, respectively. Both neurons project to all four of the ganglia of the stomatogastric nervous system. RPCH elicited cardiac sac motor patterns when applied to any region of the stomatogastric nervous system, suggesting a distributed pattern generating network with multiple sites of modulation. 5. The anterior median (AM) neuron innervates the constrictor muscles of the cardiac sac. The AM usually functions as a part of the gastric mill pattern generator. However, when the cardiac sac is activated by RPCH applied to the stomatogastric ganglion, the AM neuron becomes active in antiphase with the cardiac sac dilator bursts. This converts the cardiac sac motor pattern from a one-phase rhythm to a two-phase rhythm. 6. These data show that a neuropeptide can cause a neuronal element to switch from being solely a component of one neuronal circuit to functioning in a second one as well. This example shows that peptidergic "reconfiguration" of neuronal networks can produce substantial changes in the behavior of associated neurons.

scholarly journals Central Nervous System Responses of the Oriental migratory, Locusta migratoria manilensis, to Fungal Infection

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Wei Zhang ◽  
Jianhong Chen ◽  
Nemat O. Keyhani ◽  
Kai Jin ◽  
Qinlv Wei ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Fungal Infection ◽  
Locusta Migratoria ◽  
Locusta Migratoria Manilensis

Distribution and effects of tachykinin-like peptides in the stomatogastric nervous system of the crab,Cancer borealis

1995 ◽  
Vol 354 (2) ◽  
pp. 282-294 ◽  
Author(s):  
Dawn M. Blitz ◽  
Andrew E. Christie ◽  
Eve Marder ◽  
Michael P. Nusbaum
Keyword(s):  
Nervous System ◽  
Stomatogastric Nervous System ◽  
Cancer Borealis
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