Phototransduction molecules in the pigeon deep brain

Yasutaka Wada; Toshiyuki Okano; Yoshitaka Fukada

doi:10.1002/1096-9861(20001204)428:1<138::AID-CNE9>3.0.CO;2-N

Phototransduction molecules in the pigeon deep brain

Yasutaka Wada, Toshiyuki Okano, Yoshitaka Fukada^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

Photoreceptive areas responsible for the regulation of photoperiodicity have been localized in the brain of some avian species. We found that immunoreactivities to rhodopsin and the α-subunit of rod-type transducin (Gt₁α) were colocalized in cerebrospinal fluid (CSF) contacting neurons in the pigeon lateral septum, a possible site for photoreception. Furthermore, RT-PCR analyses showed specific gene expression of both cGMP-phosphodiesterase β-subunit and cone-type cGMP-gated cation channel α-subunit in this region. These results suggest that several components in rod/cone photoreceptors compositely contribute to the deep encephalic phototransduction cascade. (C) 2000 Wiley-Liss, Inc.

Original language	English
Pages (from-to)	138-144
Number of pages	7
Journal	Journal of Comparative Neurology
Volume	428
Issue number	1
DOIs	https://doi.org/10.1002/1096-9861(20001204)428:1<138::AID-CNE9>3.0.CO;2-N
Publication status	Published - 2000 Dec 4
Externally published	Yes

Keywords

CGMP-gated cation channel
CGMP-phosphodiesterase
Cerebrospinal fluid-contacting neuron
Photoperiodicity
Rhodopsin
Transducin

ASJC Scopus subject areas

Neuroscience(all)

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10.1002/1096-9861(20001204)428:1<138::AID-CNE9>3.0.CO;2-N

Cite this

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title = "Phototransduction molecules in the pigeon deep brain",

abstract = "Photoreceptive areas responsible for the regulation of photoperiodicity have been localized in the brain of some avian species. We found that immunoreactivities to rhodopsin and the α-subunit of rod-type transducin (Gt1α) were colocalized in cerebrospinal fluid (CSF) contacting neurons in the pigeon lateral septum, a possible site for photoreception. Furthermore, RT-PCR analyses showed specific gene expression of both cGMP-phosphodiesterase β-subunit and cone-type cGMP-gated cation channel α-subunit in this region. These results suggest that several components in rod/cone photoreceptors compositely contribute to the deep encephalic phototransduction cascade. (C) 2000 Wiley-Liss, Inc.",

keywords = "CGMP-gated cation channel, CGMP-phosphodiesterase, Cerebrospinal fluid-contacting neuron, Photoperiodicity, Rhodopsin, Transducin",

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AU - Wada, Yasutaka

AU - Okano, Toshiyuki

AU - Fukada, Yoshitaka

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N2 - Photoreceptive areas responsible for the regulation of photoperiodicity have been localized in the brain of some avian species. We found that immunoreactivities to rhodopsin and the α-subunit of rod-type transducin (Gt1α) were colocalized in cerebrospinal fluid (CSF) contacting neurons in the pigeon lateral septum, a possible site for photoreception. Furthermore, RT-PCR analyses showed specific gene expression of both cGMP-phosphodiesterase β-subunit and cone-type cGMP-gated cation channel α-subunit in this region. These results suggest that several components in rod/cone photoreceptors compositely contribute to the deep encephalic phototransduction cascade. (C) 2000 Wiley-Liss, Inc.

AB - Photoreceptive areas responsible for the regulation of photoperiodicity have been localized in the brain of some avian species. We found that immunoreactivities to rhodopsin and the α-subunit of rod-type transducin (Gt1α) were colocalized in cerebrospinal fluid (CSF) contacting neurons in the pigeon lateral septum, a possible site for photoreception. Furthermore, RT-PCR analyses showed specific gene expression of both cGMP-phosphodiesterase β-subunit and cone-type cGMP-gated cation channel α-subunit in this region. These results suggest that several components in rod/cone photoreceptors compositely contribute to the deep encephalic phototransduction cascade. (C) 2000 Wiley-Liss, Inc.

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Phototransduction molecules in the pigeon deep brain

Abstract

Keywords

ASJC Scopus subject areas

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