TY - JOUR

T1 - Organization of catecholaminergic system of Pygospio elegans and Platynereis dumerilii (Annelida)

AU - Бармасова, Галина Александровна

AU - Старунова, Зинаида Игоревна

AU - Новикова, Елена Львовна

AU - Старунов, Виктор Вячеславович

N1 - Publisher Copyright: © INVERTEBRATE ZOOLOGY, 2022.

PY - 2022

Y1 - 2022

N2 - Catecholamines (CA) are known to play an important role in the physiology of most invertebrates. Here we provide the results on catecholaminergic systems study of two annelid species: Pygospio elegans (Spionidae) and Platynereis dumerilii (Nereididae). The nervous system was studied with the histochemical method of monoamine condensa-tion with glyoxylic acid in combination with confocal laser scanning microscopy. Both animals possess developed catecholaminergic systems with similar general organization. However, in P. dumerilii considerably fewer cells were detected. In both species, CA-positive cells were found in the brain, ventral nerve cord as well as in the stomatogastric system, body wall, palps, prostomium, and regions around the chaetae. According to the cell morphology and their location in the most agile parts of the animal, we suggest CA-positive cells to be mostly proprio-or mechanoreceptors.

AB - Catecholamines (CA) are known to play an important role in the physiology of most invertebrates. Here we provide the results on catecholaminergic systems study of two annelid species: Pygospio elegans (Spionidae) and Platynereis dumerilii (Nereididae). The nervous system was studied with the histochemical method of monoamine condensa-tion with glyoxylic acid in combination with confocal laser scanning microscopy. Both animals possess developed catecholaminergic systems with similar general organization. However, in P. dumerilii considerably fewer cells were detected. In both species, CA-positive cells were found in the brain, ventral nerve cord as well as in the stomatogastric system, body wall, palps, prostomium, and regions around the chaetae. According to the cell morphology and their location in the most agile parts of the animal, we suggest CA-positive cells to be mostly proprio-or mechanoreceptors.

KW - Annelida

KW - Catecholamines

KW - Confocal microscopy

KW - Glyoxylic acid fluorescence

KW - Nervous system

KW - Platynereis dumerilii

KW - Pygospio elegans

UR - http://www.scopus.com/inward/record.url?scp=85142777346&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/9ed0406f-4012-31d3-b371-5acd29bc71ae/

U2 - 10.15298/invertzool.19.4.02

DO - 10.15298/invertzool.19.4.02

M3 - Article

VL - 19

SP - 335

EP - 350

JO - Invertebrate Zoology

JF - Invertebrate Zoology

SN - 1812-9250

IS - 4

ER -