Reorganization of peptidergic systems during brain regeneration in Eisenia fetida (Oligochaeta, Annelida)

T. Banvoslgyi, J. Barna, M. Csoknya, J. Hámori, K. Elekes

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

After the extirpation of the brain reorganization of the peptidergic (FMRFamide, neuropeptide Y, proctolin) systems was studied in the newly forming cerebral ganglion of the annelid Eisenia fetida. During regeneration, all immunoreactive fibres appear on the 1st-2nd postoperative day. At the beginning of regeneration, immunoreactive neurons and fibres form a mixed structure in the wound tissue. On the 3rd postoperative day, FMRFamide positive and neuropeptide Y-immunoreactive, while on the 7th postoperative day proctolin-immunoreactive neurons appear in the loose wound tissue. From the 25th postoperative day a capsule gradually develops around it. The neurons of the preganglion move to the surface of the newly appearing preganglion. The number of these cells gradually increase, and by the 72th-80th postoperative days the localization and number of peptide-immunoreactive neurons is similar to that in the intact one. The neurons of all examined peptidergic systems may originate from the neuroblasts, situated on the inner and outer surface of the intact ganglia (e.g. suboesophageal and ventral cord ganglia). In addition FMRFamide and proctolin immunoreactive neurons may take their derive by mitotic proliferation from the pharyngeal neurons, too.

Original languageEnglish
Pages (from-to)409-416
Number of pages8
JournalActa Biologica Hungarica
Volume51
Issue number2-4
Publication statusPublished - 2000

Fingerprint

Annelida
Eisenia fetida
Oligochaeta
Neurons
brain
Regeneration
Brain
proctolin
regeneration
neurons
FMRFamide
annelid
peptide
Ganglia
neuropeptide Y
Neuropeptide Y
animal injuries
Tissue
subesophageal ganglia
Fibers

Keywords

  • Brain regeneration
  • Earthworm
  • Eisenia
  • FMRFamide
  • Neuropeptide Y
  • Peptidergic neurons
  • Proctolin

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

Cite this

Reorganization of peptidergic systems during brain regeneration in Eisenia fetida (Oligochaeta, Annelida). / Banvoslgyi, T.; Barna, J.; Csoknya, M.; Hámori, J.; Elekes, K.

In: Acta Biologica Hungarica, Vol. 51, No. 2-4, 2000, p. 409-416.

Research output: Contribution to journalArticle

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