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Open AccessJournal ArticleDOI

Photoreception in pineal organs of larval and adult lampreys, Lampetra japonica

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TLDR
The intracellular response to light of the larval pineal was a hyperpolarization, showing fundamentally the same pattern as that of the adult pineal, and a change of visual pigment in the pineal during metamorphosis is suggested.
Abstract
A comparative study of the larval and adult pineal organs, which are sensitive to incident light, was carried out in the river lampreyLampetra japonica, using intracellular recording from the pineal photoreceptors.

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Journal ArticleDOI

Cyclic Nucleotide-Gated Ion Channels

TL;DR: CNG channels are nonselective cation channels that do not discriminate well between alkali ions and even pass divalent cations, in particular Ca2+.
Book ChapterDOI

The avian pineal, a vertebrate model system of the circadian oscillator: cellular regulation of circadian rhythms by light, second messengers, and macromolecular synthesis.

TL;DR: It is discussed that most organisms living under natural conditions express daily rhythms in their behavior, physiology, and biochemistry, and that circadian rhythmicity is a fundamental organizing feature of virtually all organisms.
Journal ArticleDOI

A cyclic GMP-activated channel in dissociated cells of the chick pineal gland.

TL;DR: The first recordings of cyclic GMP-activated channels in an extraretinal photoreceptor are reported, which may be essential for phototransduction in the chick pineal gland.
Journal ArticleDOI

Parietal-Eye Phototransduction Components and Their Potential Evolutionary Implications

TL;DR: The discovery of two opsins in the same cell: the blue-sensitive pinopsin and a previously unidentified green-sensitive opsin, which is named parietopsin provides clues about how rod and cone phototransduction might have evolved.
Journal ArticleDOI

Melanopsin and inner retinal photoreception

TL;DR: A review of some of the landmark discoveries in this fast developing field of intrinsically photosensitive retinal ganglion cells, paying particular emphasis to recent findings and key areas for future investigation.
References
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Journal ArticleDOI

S-potentials from luminosity units in the retina of fish (Cyprinidae)

TL;DR: S‐potentials were recorded in fish from units which never responded by depolarization, and these hyperpolarizing units are the L‐units of Svaetichin & MacNichol (1958).
Journal ArticleDOI

Pineal Regulation of the Body Lightening Reaction in Amphibian Larvae

TL;DR: Body pallor due to contraction of both deep and integumental melanophores occurs when either blinded or normal Xenopus laevis and other amphibian larvae are placed in the dark.
Journal ArticleDOI

Morphology of the Pineal Complex of the Anadromous Sea Lamprey, Petromyzon Marinus L

TL;DR: It is concluded that the pineal organ of P. marinus is a structurally well-developed photosensory and photoneuroendocrine organ that is probably capable of transducing photic stimuli into nervous and endocrine messages to the brain and other organs.
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