Exploring Octopamine: Immunohistochemical research of a spionid worm Pygospio elegans nervous system
DOI:
https://doi.org/10.21638/spbu03.2024.106Abstract
Octopamine is a biogenic amine specific for invertebrates distributed in all groups from Cnidaria to Echinodermata. Our study is aimed to investigate the octopamine-positive elements in the nervous system of the spionid worm Pygospio elegans. Immunohistochemistry was used to detect octopamine-positive elements in the central and peripheral nervous systems. While the central nervous system exhibited weak staining, the peripheral nervous system showed specifically octopamine-like elements in the palps, peristomium, and body segments. The detected octopamine-like elements were compared with other neurotransmitters in the P. elegans nervous system. Our results contribute to the data on annelid octopaminergic nervous system structure.
Keywords:
Pygospio elegans, nervous system, peripheral nervous system, octopamine, immunohistochemistry, confocal microscopy
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Articles of Biological Communications are open access distributed under the terms of the License Agreement with Saint Petersburg State University, which permits to the authors unrestricted distribution and self-archiving free of charge.