(1) The telencephalon of teleost fish shows high affinity uptake for D-[3H]aspartate, intermediate levels of GABAergic markers and low levels of cholinergic enzymes.
(2) The large motoneurons innervating only white muscle are similar to the primary motoneurons identified in developmental studies in teleosts (Myers: Soc.
(3) This preliminary study shows an adrenergic control system composed of chromaffin cells and adrenergic nerves similar to that found in other teleosts investigated, although the systemic arteries (coeliac artery, dorsal aorta and the vasculature of the air-breathing organ) appear to lack an adrenergic innervation.
(4) The cardiac glycoside ouabain was injected into the eye-bulb of the teleost fish, Carassius carassius.
(5) The results also indicate that the two parts of the teleost olfactory bulb are differentiated not only functionally but also morphologically.
(6) The elopiform teleost Engraulis japonica was used for a light and electron microscopical study of the follicle epithelium in the rostral pars distalis of the pituitary.
(7) The histological picture of the goiters was similar to that found in thiourea-treated teleosts and thiouracil-treated mammals.
(8) Cutaneous oxygen consumption and oxygen uptake from the external medium were investigated in three species of freshwater teleosts:eel(Anguilla anguilla L.)(silvered stage), trout (Salmo gairdnerii R.) and tench (Tinca tinca L.).
(9) Two melanotropic peptides, melanin concentration hormone (MCH) and alpha-melanocyte stimulating hormone (alpha-MSH), exert opposing actions on melanosome (melanin granule) movements within teleost pigment cells, melanocytes (melanophores).
(10) The nonfaecal and the faecal production of Pomadasys commersonni, a marine teleost, were investigated at 15, 20 and 25 degrees C. 2.
(11) Among vertebrates, some teleosts are unique in having bone which lacks osteocytes embedded in the matrix.
(12) Absence of a functioning velocity storage network in bottom-dwelling teleosts (as in Amphibia) may be related to the sporadic, slow locomotion of these species and the resulting small requirements for continuous gaze stabilization during self-motion at higher velocities.
(13) We report here the effects of estradiol-17 beta-propionate on vitellogenin gene expression in male Oreochromis aureus, a teleost fish.
(14) Immunoblot analysis with antibodies to P-450 forms from a teleost (scup) showed the presence of cross-reacting proteins in control fish, presumed counterparts to the scup forms.
(15) The experimental studies on visual projection of various teleosts are reviewed and discussed.
(16) The mode of 3-methylcholanthrene (MC)-type induction was evaluated by examining hepatic isozyme P450E content, catalytic activity, and mRNA levels in the marine teleost Fundulus heteroclitus after exposure to a single dose of beta-naphthoflavone (BNF).
(17) However, we report here that in the teleost fish, Aequidens pulcher, the intraocular injection of 6-hydroxydopamine (6-OHDA), a substance known to destroy dopaminergic retinal cells, has no effect on the triggering of light-adaptive retinomotor movements of the cones and epithelial pigment and only slightly depresses the final level of light adaptation reached.
(18) Absorption of lipid in the different regions of the intestine of two teleost fishes has been studied histochemically at different time intervals of 4, 10 and 20 h. All the three portions of the intestine have the absorptive capacity.
(19) To this end we have investigated whether the c-src gene of a lower vertebrate (the teleost fish Xiphophorus) gives rise to a neural-specific transcript in an analogous manner.
(20) Amino acids and nucleotides stimulate taste receptors of teleosts.