The association of crustacean cardioactive peptide with the spermatheca of the African migratory locust, Locusta migratoria

Journal of Insect Physiology
Rosa da Silva, A B Lange

Abstract

Crustacean cardioactive peptide (CCAP)-like immunoreactivity was identified in neurons of the VIIIth abdominal ganglion and in axons in the nerves that project to the spermatheca of 3-4 week old adult female locusts. In addition, lightly stained CCAP-like immunoreactive processes were localized over the spermathecae. The amount of CCAP in the spermathecal tissue was quantified using an enzyme-linked immunosorbent assay (ELISA) performed on extracts of the whole spermatheca, and on its constituent parts, namely the sperm sac, coiled duct and straight duct. The spermatheca contains 920+/-273 fmol (mean+/-SE) of CCAP equivalents, with the majority localized in the coiled duct. There are age-related differences in the amount of CCAP present in the spermathecae with less content in spermathecae from 1 to 5 day old and greater content in spermathecae from 3 to 4 week old adults. There was also no difference in CCAP content of spermathecae in mated and virgin 3 to 4 week old adults. Reversed phase-high performance liquid chromatography (RP-HPLC) followed by ELISA further confirmed the presence of CCAP-like material in extracts of locust spermathecae. Physiological assays demonstrated that CCAP increased the basal tonus and frequency o...Continue Reading

References

Jul 1, 1988·Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology·K A Mesce, J W Truman
May 1, 1985·Journal of Neurobiology·I Orchard, A B Lange
Jul 1, 1993·Peptides·H K LehmanJ G Hildebrand
Nov 11, 1999·Proceedings of the National Academy of Sciences of the United States of America·J S ChungS G Webster
Nov 26, 1999·Peptides·R NicholsE Zornik
Jan 22, 2002·Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology·D DulcisJ G Hildebrand
Aug 15, 2002·Proceedings of the National Academy of Sciences of the United States of America·Yoonseong ParkMichael E Adams
Feb 28, 2003·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·J Clark, A B Lange
Mar 21, 2003·Biochemical and Biophysical Research Communications·Giuseppe CazzamaliCornelis J P Grimmelikhuijzen
May 29, 2003·Journal of Insect Physiology·J Clark, A B. Lange
Apr 15, 2004·Journal of Insect Physiology·Andrew Donini, Angela B Lange
Sep 7, 2004·The Journal of Comparative Neurology·Davide Dulcis, Richard B Levine
May 18, 2005·Journal of Neurobiology·Davide DulcisJohn Ewer
Jan 1, 1987·Proceedings of the National Academy of Sciences of the United States of America·J StangierR Keller

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.