Visual system of the channel catfish (Ictalurus punctatus): III. Fiber order in the optic nerve and optic tract

1988 ◽  
Vol 268 (3) ◽  
pp. 299-312 ◽  
Author(s):  
A. A. Dunn-Meynell ◽  
S. C. Sharma
Keyword(s):  
Optic Nerve ◽  
Visual System ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Optic Tract

[3H]nicotine binding sites are associated with mammalian optic nerve terminals

1988 ◽  
Vol 1 (2) ◽  
pp. 245-248 ◽  
Author(s):  
Glen T. Prusky ◽  
Max S. Cynader
Keyword(s):  
Optic Nerve ◽  
Visual System ◽  
Nicotinic Acetylcholine Receptors ◽  
Binding Sites ◽  
Acetylcholine Receptors ◽  
Optic Tract ◽  
Nerve Fibers ◽  
Nerve Terminals ◽  
Nicotinic Acetylcholine ◽  
Retinotectal Transmission

AbstractThe autoradiographic distribution of [3H]nicotine binding sites was examined in the superior colliculus in normal rats and cats, and in animals in which one or both eyes were removed. [3H]Nicotine binding sites in normal animals were densely concentrated in the superficial layers of the colliculus corresponding to the zone of termination of optic nerve fibers. Following bilateral enucleation, [3H]nicotine binding in the superficial collicular layers was drastically reduced. Unilateral enucleation markedly reduced [3H]nicotine binding sites in the colliculus contralateral to the removed eye, with little effect on the ipsilateral colliculus. These results provide further evidence that nicotinic acetylcholine receptors have a presynaptic location on optic tract terminals and may therefore modulate retinotectal transmission in both the rat and cat visual system.

Pre-existing neuronal pathways in the developing optic lobes of Drosophila

Development ◽  
1989 ◽  
Vol 105 (4) ◽  
pp. 739-746 ◽  
Author(s):  
S. Tix ◽  
J.S. Minden ◽  
G.M. Technau
Keyword(s):  
Optic Nerve ◽  
Visual System ◽  
Optic Lobe ◽  
Adult Stage ◽  
Insertion Site ◽  
Optic Tract ◽  
Optic Stalk ◽  
Optic Lobes ◽  
First Order ◽  
Form Part

We have identified a set of larval neurones in the developing adult optic lobes of Drosophila by selectively labelling cells that have undergone only a few mitoses. A cluster of three cells is located in each of the optic lobes near the insertion site of the optic stalk. Their axons fasciculate with fibres of the larval optic nerve, the Bolwig's nerve, and then form part of the posterior optic tract. These cells are likely to be first order interneurones of the larval visual system. Unlike the Bolwig's nerve, they persist into the adult stage. The possibility of a pioneering function of the larval visual system during formation of the adult optic lobe neuropil is discussed.

Preparation and characterization of collagen polypeptide chelated calcium from fish bone powder of channel catfish(Ictalurus punctatus)

2012 ◽  
Vol 36 (2) ◽  
pp. 314
Author(s):  
Jian-feng LU ◽  
Chang-wei MENG ◽  
Jin LI ◽  
Zi-hui GONG ◽  
Lin LIN ◽  
...  
Keyword(s):  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Fish Bone ◽  
Bone Powder

Bioeconomic Analysis of Flavobacterium columnare Vaccine Pond Trials with Channel Catfish Ictalurus punctatus

2021 ◽  
Author(s):  
Jillian K. Malecki ◽  
Luke A. Roy ◽  
Cova R. Arias ◽  
Miles D. Lange ◽  
Craig A. Shoemaker ◽  
...  
Keyword(s):  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Flavobacterium Columnare

Novel polymorphisms in Stearoyl‐CoA Desaturase (SCD) and Fatty Acid Desaturase 2 (FADS2) in channel catfish ( Ictalurus punctatus, Rafinesque, 1818 )

2021 ◽  
Author(s):  
Oliva Mendoza‐Pacheco ◽  
Gaspar Manuel Parra‐Bracamonte ◽  
Xochitl Fabiola De la Rosa‐Reyna ◽  
Ana María Sifuentes‐Rincón ◽  
Isidro Otoniel Montelongo‐Alfaro ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Fatty Acid Desaturase ◽  
Stearoyl Coa Desaturase ◽  
Fatty Acid Desaturase 2
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