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Two different areas of the nucleus glomerulosus in the South American pufferfish, Colomesus asellus.
Vis Neurosci. 2020 Jun 17; 37:E003.VN

Abstract

The nucleus glomerulosus (NG) in paracanthopterygian and acanthopterygian teleost fishes receives afferents from neurons of the nucleus corticalis (NC), whose dendrites extend to the layers, stratum fibrosum et griseum superficiale (SFGS) and stratum griseum centrale (SGC), of the tectum opticum. A re-examination in this study revealed, by means of tracer experiments using biotinylated dextran amine, a separation among both tectal layers, portions of the NC, and target areas in a laminated type of the NG in the South American pufferfish, Colomesus asellus. Neurons of the lateral part of the NC send their dendrites to the SFGS and project to an area located dorsolaterally and centrally in the NG. In contrast, dendrites from neurons of the medial part of the NC run to the SGC, and projections from these neurons terminate in the NG in an area extending from dorsomedial to ventrolateral in the outer portion. Therefore, these two areas in the NG receive input from different sources. The NG in the visual system of tetraodontids may be involved in higher cognitive functions requiring much energy, becoming apparent by its very high level of cytochrome c oxidase activity.

Authors+Show Affiliations

Institute of Zoology, University of Bonn, Bonn, Germany.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32613921

Citation

Schmidt, Matthias. "Two Different Areas of the Nucleus Glomerulosus in the South American Pufferfish, Colomesus Asellus." Visual Neuroscience, vol. 37, 2020, pp. E003.
Schmidt M. Two different areas of the nucleus glomerulosus in the South American pufferfish, Colomesus asellus. Vis Neurosci. 2020;37:E003.
Schmidt, M. (2020). Two different areas of the nucleus glomerulosus in the South American pufferfish, Colomesus asellus. Visual Neuroscience, 37, E003. https://doi.org/10.1017/S0952523820000012
Schmidt M. Two Different Areas of the Nucleus Glomerulosus in the South American Pufferfish, Colomesus Asellus. Vis Neurosci. 2020 Jun 17;37:E003. PubMed PMID: 32613921.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Two different areas of the nucleus glomerulosus in the South American pufferfish, Colomesus asellus. A1 - Schmidt,Matthias, Y1 - 2020/06/17/ PY - 2020/7/3/entrez PY - 2020/7/3/pubmed PY - 2020/7/3/medline KW - cytochrome c oxidase KW - teleost fish KW - tracer KW - visual system SP - E003 EP - E003 JF - Visual neuroscience JO - Vis. Neurosci. VL - 37 N2 - The nucleus glomerulosus (NG) in paracanthopterygian and acanthopterygian teleost fishes receives afferents from neurons of the nucleus corticalis (NC), whose dendrites extend to the layers, stratum fibrosum et griseum superficiale (SFGS) and stratum griseum centrale (SGC), of the tectum opticum. A re-examination in this study revealed, by means of tracer experiments using biotinylated dextran amine, a separation among both tectal layers, portions of the NC, and target areas in a laminated type of the NG in the South American pufferfish, Colomesus asellus. Neurons of the lateral part of the NC send their dendrites to the SFGS and project to an area located dorsolaterally and centrally in the NG. In contrast, dendrites from neurons of the medial part of the NC run to the SGC, and projections from these neurons terminate in the NG in an area extending from dorsomedial to ventrolateral in the outer portion. Therefore, these two areas in the NG receive input from different sources. The NG in the visual system of tetraodontids may be involved in higher cognitive functions requiring much energy, becoming apparent by its very high level of cytochrome c oxidase activity. SN - 1469-8714 UR - https://www.unboundmedicine.com/medline/citation/32613921/Two_different_areas_of_the_nucleus_glomerulosus_in_the_South_American_pufferfish,_Colomesus_asellus L2 - https://www.cambridge.org/core/product/identifier/S0952523820000012/type/journal_article DB - PRIME DP - Unbound Medicine ER -
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