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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/44779
Title: Distribution and dynamic expression of serotonin and dopamine in the nervous system and ovary of Holothuria scabra during ovarian maturation
Authors: Arada Chaiyamoon
Ruchanok Tinikul
Supakant Chaichotranunt
Tanes Poomthong
Worawit Suphamungmee
Prasert Sobhon
Yotsawan Tinikul
Mahidol University
Burapha University
Coastal Fisheries Research and Development Center
Keywords: Agricultural and Biological Sciences;Biochemistry, Genetics and Molecular Biology;Neuroscience
Issue Date: 1-Apr-2018
Citation: Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology. Vol.204, No.4 (2018), 391-407
Abstract: © 2018, Springer-Verlag GmbH Germany, part of Springer Nature. In the present study, the distribution and dynamic expression of serotonin and dopamine in the nervous system and ovary of the sea cucumber, Holothuria scabra, during different ovarian stages were investigated. We found that serotonin-immunoreactivity was more intense in the neurons and neuropils of the outer ectoneural part, the inner hyponeural part, and the wall of hyponeural canal of radial nerve cord during the mature stages of ovarian cycle, whereas dopamine-immunoreactivity was detected at a higher intensity in these tissues during the early stages. Both neurotransmitters were detected in the ectoneural part of the nerve ring. In the ovary, serotonin intensity was more intense in the cytoplasm of late oocytes, while dopamine-immunoreactivity was more intense in the early stages. The changes in the levels serotonin in the radial nerve cord and oocytes are incremental towards the late stages of ovarian maturation. In contrast, dopamine levels in the nervous tissues and oocytes were more intense in early stages and became decremental towards the late stages. These findings suggest that serotonin and dopamine may have opposing effects on ovarian development in this sea cucumber species.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85040678675&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/44779
ISSN: 14321351
03407594
Appears in Collections:Scopus 2018

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