Ciliary and nervous structures in juvenile females of the annelid Dinophilus gyrociliatus (O. Schmidt, 1848) (Annelida: Polychaeta)

Ciliary and nervous structures in juvenile females of the annelid Dinophilus gyrociliatus (O.... Ciliary and nerve structures were described in juvenile female Dinophilus gyrociliatus (O. Schmidt, 1848) after immunochemical staining with tubulin, serotonin, and FMRFamide antibodies. Anti-tubulin antibodies revealed the following external structures: two head and seven body ciliary bands, a ventral ciliary band, and head ciliary fields. Gut cilia and five pairs of protonephridia were detected inside the body. The nervous system consists of an oval headed neuropile with anterior and posterior nerves extending from it, seven longitudinal nerve cords, commissures, and circular nerves. Anti-serotonin antibodies revealed the head neuropile, neurons at the base of the ventral ciliary band, an oesophageal ring, and seven longitudinal ventral cords. Anti-FMRFamide antibodies revealed approximately ten neurons in the cerebral ganglion, five longitudinal cords, and the oesophageal and caudal-nerve rings. The presented data suggest the simplification of the nervous system structure in D. gyrociliatus, which probably reflects pedomorphosis. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Ciliary and nervous structures in juvenile females of the annelid Dinophilus gyrociliatus (O. Schmidt, 1848) (Annelida: Polychaeta)

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Publisher
Pleiades Publishing
Copyright
Copyright © 2014 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Freshwater & Marine Ecology
ISSN
1063-0740
eISSN
1608-3377
D.O.I.
10.1134/S1063074014010040
Publisher site
See Article on Publisher Site

Abstract

Ciliary and nerve structures were described in juvenile female Dinophilus gyrociliatus (O. Schmidt, 1848) after immunochemical staining with tubulin, serotonin, and FMRFamide antibodies. Anti-tubulin antibodies revealed the following external structures: two head and seven body ciliary bands, a ventral ciliary band, and head ciliary fields. Gut cilia and five pairs of protonephridia were detected inside the body. The nervous system consists of an oval headed neuropile with anterior and posterior nerves extending from it, seven longitudinal nerve cords, commissures, and circular nerves. Anti-serotonin antibodies revealed the head neuropile, neurons at the base of the ventral ciliary band, an oesophageal ring, and seven longitudinal ventral cords. Anti-FMRFamide antibodies revealed approximately ten neurons in the cerebral ganglion, five longitudinal cords, and the oesophageal and caudal-nerve rings. The presented data suggest the simplification of the nervous system structure in D. gyrociliatus, which probably reflects pedomorphosis.

Journal

Russian Journal of Marine BiologySpringer Journals

Published: Apr 5, 2014

References

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