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Development of serotonergic neurons in the brain of the mackerel, Scomber scombrus . An immunohistochemical study
Author(s) -
Bolliet V.,
Perreault S.,
Ali M. A.
Publication year - 1994
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1994.tb01202.x
Subject(s) - biology , midbrain , serotonergic , diencephalon , anatomy , ontogeny , raphe nuclei , raphe , neuroscience , central nervous system , endocrinology , serotonin , biochemistry , receptor
The ontogenetic development of serotonin immunoreactivity (5‐HTir) neurons was investigated by immunocytochemistry in the brain of the mackerel, from fertilization to the complete resorption of the yolk sac (201 h). 5‐HTir appears first in cell bodies in the diencephalon, on both sides of the third ventricle. At hatching time 5‐HTir perikarya are also present in the mesencephalon and the inferior raphe but in small numbers. During larval stages, immunoreactivity appears consecutively in the area thalamo piaetectalis, the nuclei raphe pallidus and obscurus, the nuclei tegmenti dorsalis lateralis, recessus posterioris, lateralis hypothalami and paragigantocellularis lateralis. These results, together with previous findings, suggest a common pattern of distribution of the different 5‐HTir neuronal populations in the brain of a teleost during ontogeny but a different sequence of appearance of initial 5‐HTir in these populations between species.