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Hypothalamo-neurosecretory system of the female sea bass, Lates calcarifer (Bloch), with special reference to gonadal maturation

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Relation http://eprints.cmfri.org.in/171/
 
Title Hypothalamo-neurosecretory system of the female
sea bass, Lates calcarifer (Bloch), with special
reference to gonadal maturation
 
Creator Lal, Kuldeep Kumar
Pandey, A K
 
Subject Fish physiology
 
Description Hypothalamus of Lates calcarifer (Family : Centropomidae) consists mainly
of nucleus preopticus (NPO), nucleus lateralis tuberis (NLT) and their axonal
tracts. NPO is a paired structure situated on either side of the third ventricle
slightly above the optic chiasma. It is a highly vascularised structure and
cytoarchitecturally divisible into dorsal pars magnocellularis (PMC) comprising
larger neurons and ventral pars parvocellularis (PPC) with smaller
neurosecretory cells. In the hypothalamus the NLT cells were found distributed
uniformly in the infundibular floor adjacent to the pituitary stalk. Prominent
phloxine-positive neurosecretory material (NSM) was encountered in PPC of
matured female. Though neurosecretory cells of both NPO and NLT were
positive to aldehyde fuchsin (AF), acid and chrome-alum-hematoxylin-phloxine
(CAHP), cellular differentiation was more marked in the latter. Both NPO and
NLT contributed beaded axons to form the neurohypophysial tract. Herring
bodies (HB) of varying sizes were encountered in the anterior neurohypophysis
(ANH). Neurosecretory cells of both NPO and NLT exhibited fluctuations in
their secretory activity in response to the gonadal maturation.
 
Publisher CMFRI/ICAR
 
Date 1998
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/171/1/Article_10.pdf
Lal, Kuldeep Kumar and Pandey, A K (1998) Hypothalamo-neurosecretory system of the female sea bass, Lates calcarifer (Bloch), with special reference to gonadal maturation. Indian Journal of Fisheries, 45 (1). pp. 51-60.