BIOMAT Database Logo BIOMAT Database Logo

Methionine-enkephalin immunoreactivity in the gonads and nervous system of two insect species: Locusta migratoria and Sarcophaga bullata. 1988

L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
Zoological Institute of the University, Leuven, Belgium.

Methionine(met)-enkephalin immunoreactivity as visualized by the peroxidase-antiperoxidase procedure, is present in spermatogonia, spermatocytes, spermatids, and young ovarian follicles of Locusta (panoistic type) and Sarcophaga (polytrophic type). Follicle cells and mature spermatozoa are always immunonegative as are locust vitellogenic follicles. In oocytes and in trophocytes, the met-enkephalin-like material first appears around the nucleus and is then dispersed throughout the cytoplasm. Later, it is present only in the periphery. In the ovary of both insects, no immunoreactivity is found with antisera against adrenocorticotrophic hormone, melanophore stimulating hormone, beta-endorphin, corticotropin releasing factor, or leucine-enkephalin. All these antisera yield a positive reaction when applied to the central nervous system as does the met-enkephalin antiserum. This study indicates that the met-enkephalin-like peptide may play a role in reproductive physiology.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008297 Male Males
D009420 Nervous System The entire nerve apparatus, composed of a central part, the brain and spinal cord, and a peripheral part, the cranial and spinal nerves, autonomic ganglia, and plexuses. (Stedman, 26th ed) Nervous Systems,System, Nervous,Systems, Nervous
D010053 Ovary The reproductive organ (GONADS) in female animals. In vertebrates, the ovary contains two functional parts: the OVARIAN FOLLICLE for the production of female germ cells (OOGENESIS); and the endocrine cells (GRANULOSA CELLS; THECA CELLS; and LUTEAL CELLS) for the production of ESTROGENS and PROGESTERONE. Ovaries
D004175 Diptera An order of the class Insecta. Wings, when present, number two and distinguish Diptera from other so-called flies, while the halteres, or reduced hindwings, separate Diptera from other insects with one pair of wings. The order includes the families Calliphoridae, Oestridae, Phoridae, SARCOPHAGIDAE, Scatophagidae, Sciaridae, SIMULIIDAE, Tabanidae, Therevidae, Trypetidae, CERATOPOGONIDAE; CHIRONOMIDAE; CULICIDAE; DROSOPHILIDAE; GLOSSINIDAE; MUSCIDAE; TEPHRITIDAE; and PSYCHODIDAE. The larval form of Diptera species are called maggots (see LARVA). Flies, True,Flies,Dipteras,Fly,Fly, True,True Flies,True Fly
D004744 Enkephalin, Methionine One of the endogenous pentapeptides with morphine-like activity. It differs from LEU-ENKEPHALIN by the amino acid METHIONINE in position 5. Its first four amino acid sequence is identical to the tetrapeptide sequence at the N-terminal of BETA-ENDORPHIN. Methionine Enkephalin,5-Methionine Enkephalin,Met(5)-Enkephalin,Met-Enkephalin,5 Methionine Enkephalin,Enkephalin, 5-Methionine,Met Enkephalin
D005260 Female Females
D006110 Grasshoppers Plant-eating orthopterans having hindlegs adapted for jumping. There are two main families: Acrididae and Romaleidae. Some of the more common genera are: Melanoplus, the most common grasshopper; Conocephalus, the eastern meadow grasshopper; and Pterophylla, the true katydid. Acrididae,Locusts,Romaleidae,Grasshopper,Locust
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013737 Testis The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS. Testicles,Testes,Testicle

Related Publications

L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
Localization of melanotropin-like peptides in the central nervous system of two insect species, the migratory locust, Locusta migratoria, and the fleshfly, Sarcophaga bullata.
April 1987, Cell and tissue research,
L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
Development of histamine-immunoreactivity in the Central nervous system of the two locust species Schistocerca gregaria and Locusta migratoria.
October 2011, Microscopy research and technique,
L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
Distribution of locustamyotropin-like immunoreactivity in the nervous system of Locusta migratoria.
February 1992, Regulatory peptides,
L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
NPY-like peptides occur in the nervous system and midgut of the migratory locust, Locusta migratoria and in the brain of the grey fleshfly, Sarcophaga bullata.
January 1988, Peptides,
L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
Electrical fields around the polytrophic ovarian follicles of Sarcophaga bullata and the panoistic follicles of Locusta migratoria.
January 1986, Progress in clinical and biological research,
L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
FMRFamide-like immunoreactivity in the stomatogastric nervous system innervating the gut of the fly, Sarcophaga bullata.
October 1992, Comparative biochemistry and physiology. C, Comparative pharmacology and toxicology,
L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
Immunocytochemical localization of human growth hormone- and prolactin-like antigenic determinants in the insects, Locusta migratoria and Sarcophaga bullata.
January 1990, Comparative biochemistry and physiology. A, Comparative physiology,
L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
[Presence of substances immunoreactively related to enkephalin in an insect, Locusta migratoria].
September 1978, Comptes rendus hebdomadaires des seances de l'Academie des sciences. Serie D: Sciences naturelles,
L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
Immunolocalization of a tachykinin-receptor-like protein in the central nervous system of Locusta migratoria migratorioides and neobellieria bullata.
May 1999, The Journal of comparative neurology,
L Schoofs, and S Schrooten, and R Huybrechts, and A De Loof
Immunological evidence for an allatostatin-like neuropeptide in the central nervous system of Schistocerca gregaria, Locusta migratoria and Neobellieria bullata.
March 1995, Cell and tissue research,
Copied contents to your clipboard!