Dopamine in the lobster Homarus gammarus: II. Dopamine‐immunoreactive neurons and development of the nervous system
Abstract Dopamine‐immunoreactive neurons were revealed in lobster embryos, larvae, and postlarvae, and staining patterns were compared to neuronal labeling in the juvenile lobster nervous system (Cournil et al. [1994] J. Comp. Neurol. 344 :455–469). Dopamine immunoreactivity is first detected by mid...
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crwiley:10.1002/cne.903620102 2024-06-02T08:07:51+00:00 Dopamine in the lobster Homarus gammarus: II. Dopamine‐immunoreactive neurons and development of the nervous system Cournil, Isabelle Casasnovas, Beatrice Helluy, Simone M. Beltz, Barbara S. 1995 http://dx.doi.org/10.1002/cne.903620102 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fcne.903620102 https://onlinelibrary.wiley.com/doi/pdf/10.1002/cne.903620102 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Comparative Neurology volume 362, issue 1, page 1-16 ISSN 0021-9967 1096-9861 journal-article 1995 crwiley https://doi.org/10.1002/cne.903620102 2024-05-03T11:36:32Z Abstract Dopamine‐immunoreactive neurons were revealed in lobster embryos, larvae, and postlarvae, and staining patterns were compared to neuronal labeling in the juvenile lobster nervous system (Cournil et al. [1994] J. Comp. Neurol. 344 :455–469). Dopamine immunoreactivity is first detected by midembryonic life in 35–40 neuroi somata located anteriorly in brain and subesophageal ganglion. When the lobsters assume a benthic life during the first postlarval stage, an average of 58 cell bodies are labeled. The acquisition of dopamine in lobster neurons is a protracted event spanning embryonic, larval, and postlarval life and finally reaching the full complement of roughly 100 neurons in juvenile stages. Some of the dopaminergic neurons previously identified in the mature nervous system, such as the paired Br cells, L cells, and mandibular cells, are labeled in embryos and persist throughout development. In contrast, other neurons stain transiently for dopamine during the developmental period, but, by the adult stage, these neurons are no longer immunoreactive. Such transiently labeled neurons project to the foregut, the thoracic dorsal muscles, the neurohormonal pericardial plexus, and the pericardial pouches. It is proposed that these neurons are alive and functioning in adult lobster but that dopamine levels have been abolished, proving that neurotransmitter status is a dynamic, changing process. © Wiley‐Liss, Inc. Article in Journal/Newspaper Homarus gammarus Wiley Online Library Journal of Comparative Neurology 362 1 1 16 |
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Wiley Online Library |
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English |
description |
Abstract Dopamine‐immunoreactive neurons were revealed in lobster embryos, larvae, and postlarvae, and staining patterns were compared to neuronal labeling in the juvenile lobster nervous system (Cournil et al. [1994] J. Comp. Neurol. 344 :455–469). Dopamine immunoreactivity is first detected by midembryonic life in 35–40 neuroi somata located anteriorly in brain and subesophageal ganglion. When the lobsters assume a benthic life during the first postlarval stage, an average of 58 cell bodies are labeled. The acquisition of dopamine in lobster neurons is a protracted event spanning embryonic, larval, and postlarval life and finally reaching the full complement of roughly 100 neurons in juvenile stages. Some of the dopaminergic neurons previously identified in the mature nervous system, such as the paired Br cells, L cells, and mandibular cells, are labeled in embryos and persist throughout development. In contrast, other neurons stain transiently for dopamine during the developmental period, but, by the adult stage, these neurons are no longer immunoreactive. Such transiently labeled neurons project to the foregut, the thoracic dorsal muscles, the neurohormonal pericardial plexus, and the pericardial pouches. It is proposed that these neurons are alive and functioning in adult lobster but that dopamine levels have been abolished, proving that neurotransmitter status is a dynamic, changing process. © Wiley‐Liss, Inc. |
format |
Article in Journal/Newspaper |
author |
Cournil, Isabelle Casasnovas, Beatrice Helluy, Simone M. Beltz, Barbara S. |
spellingShingle |
Cournil, Isabelle Casasnovas, Beatrice Helluy, Simone M. Beltz, Barbara S. Dopamine in the lobster Homarus gammarus: II. Dopamine‐immunoreactive neurons and development of the nervous system |
author_facet |
Cournil, Isabelle Casasnovas, Beatrice Helluy, Simone M. Beltz, Barbara S. |
author_sort |
Cournil, Isabelle |
title |
Dopamine in the lobster Homarus gammarus: II. Dopamine‐immunoreactive neurons and development of the nervous system |
title_short |
Dopamine in the lobster Homarus gammarus: II. Dopamine‐immunoreactive neurons and development of the nervous system |
title_full |
Dopamine in the lobster Homarus gammarus: II. Dopamine‐immunoreactive neurons and development of the nervous system |
title_fullStr |
Dopamine in the lobster Homarus gammarus: II. Dopamine‐immunoreactive neurons and development of the nervous system |
title_full_unstemmed |
Dopamine in the lobster Homarus gammarus: II. Dopamine‐immunoreactive neurons and development of the nervous system |
title_sort |
dopamine in the lobster homarus gammarus: ii. dopamine‐immunoreactive neurons and development of the nervous system |
publisher |
Wiley |
publishDate |
1995 |
url |
http://dx.doi.org/10.1002/cne.903620102 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fcne.903620102 https://onlinelibrary.wiley.com/doi/pdf/10.1002/cne.903620102 |
genre |
Homarus gammarus |
genre_facet |
Homarus gammarus |
op_source |
Journal of Comparative Neurology volume 362, issue 1, page 1-16 ISSN 0021-9967 1096-9861 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/cne.903620102 |
container_title |
Journal of Comparative Neurology |
container_volume |
362 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
16 |
_version_ |
1800752982143270912 |