Distribution of FMRFamide-like immunoreactivity in the nervous system of Lumbricus terrestris

D. Reglodi, S. Slezák, A. Lubics, Márta Szelier, K. Elekes, I. Lengvári

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The distribution of FMRFamide-like immunoreactive cell bodies and fibers in the nervous system of the earthworm Lumbricus terrestris has been studied by means of immunocytochemistry. The cerebral ganglion contains 150-170 immunoreactive nerve cells that are organized into six major groups in the rostral and five major groups in the caudal part of the ganglion; 160-180 immunoreactive nerve cells are present in the subesophageal ganglion, and 80-90 in the ventral cord ganglia. Immunoreactive neurons of the subesophageal and the ventral cord ganglia show similar distributions, in that FMRFamide-like immunoreactive cells form a ventromedial and a lateral cell group. Neuropil in all parts of the central nervous system shows intensively stained varicose and non-varicose fibers. Each segmental nerve contains FMRFamide-like immunoreactive fibers that can partly be traced to the two muscle layers of the body wall, and a fine immunoreactive network lies among the muscle fibers. A similar network is found in the wall of the alimentary canal. Immunopositive perikarya and fibers have been detected in the prostomial nerves, in the stomatogastric system. Some epithelial cells of the body wall are also immunopositive. The morphological characteristics and localization of FMRFamide immunoreactive neurons suggest that they may be involved in: (1) central integratory processes; (2) neuromuscular regulation in both the body wall and enteric system; (3) sensory processes.

Original languageEnglish
Pages (from-to)575-582
Number of pages8
JournalCell and Tissue Research
Volume288
Issue number3
DOIs
Publication statusPublished - 1997

Fingerprint

FMRFamide
Oligochaeta
Neurology
Ganglia
Nervous System
Neurons
Fibers
Muscle
Muscles
Neuropil
Canals
Cell Wall
Central Nervous System
Epithelial Cells
Immunohistochemistry
Cells

Keywords

  • Central nervous system
  • FMRFamide
  • Immunocytochemistry
  • Lumbricus terrestris (Annelida)

ASJC Scopus subject areas

  • Anatomy
  • Clinical Biochemistry
  • Cell Biology

Cite this

Distribution of FMRFamide-like immunoreactivity in the nervous system of Lumbricus terrestris. / Reglodi, D.; Slezák, S.; Lubics, A.; Szelier, Márta; Elekes, K.; Lengvári, I.

In: Cell and Tissue Research, Vol. 288, No. 3, 1997, p. 575-582.

Research output: Contribution to journalArticle

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