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dc.contributor.authorArada Chaiyamoonen_US
dc.contributor.authorRuchanok Tinikulen_US
dc.contributor.authorSupakant Chaichotranunten_US
dc.contributor.authorTanes Poomthongen_US
dc.contributor.authorWorawit Suphamungmeeen_US
dc.contributor.authorPrasert Sobhonen_US
dc.contributor.authorYotsawan Tinikulen_US
dc.contributor.otherMahidol Universityen_US
dc.contributor.otherBurapha Universityen_US
dc.contributor.otherCoastal Fisheries Research and Development Centeren_US
dc.identifier.citationJournal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology. Vol.204, No.4 (2018), 391-407en_US
dc.description.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.en_US
dc.rightsMahidol Universityen_US
dc.subjectAgricultural and Biological Sciencesen_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.titleDistribution and dynamic expression of serotonin and dopamine in the nervous system and ovary of Holothuria scabra during ovarian maturationen_US
Appears in Collections:Scopus 2018

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