Results 41 to 50 of about 194,952 (354)

Pineal photoreceptor cells are required for maintaining the circadian rhythms of behavioral visual sensitivity in zebrafish.

open access: yesPLoS ONE, 2012
In non-mammalian vertebrates, the pineal gland functions as the central pacemaker that regulates the circadian rhythms of animal behavior and physiology. We generated a transgenic zebrafish line [Tg(Gnat2:gal4-VP16/UAS:nfsB-mCherry)] in which the E. coli
Xinle Li   +5 more
doaj   +1 more source

Observation of cone and rod photoreceptors in normal subjects and patients using a new generation adaptive optics scanning laser ophthalmoscope. [PDF]

open access: yes, 2011
We demonstrate the capability of a new generation adaptive optics scanning laser ophthalmoscope (AOSLO) to resolve cones and rods in normal subjects, and confirm our findings by comparing cone and rod spacing with published histology measurements.
Duncan, Jacque L   +3 more
core   +3 more sources

Photoreceptor-mediated regulation of the COP1/SPA E3 ubiquitin ligase.

open access: yesCurrent opinion in plant biology, 2018
Plants have evolved specific photoreceptors that capture informational cues from sunlight. The phytochrome, cryptochrome, and UVR8 photoreceptors perceive red/far-red, blue/UV-A, and UV-B light, respectively, and control overlapping photomorphogenic ...
Roman Podolec, R. Ulm
semanticscholar   +1 more source

Phosphoinositides and Photoreceptors [PDF]

open access: yesMolecular Neurobiology, 2011
The importance of phosphoinositides (phosphorylated phosphatidyl inositol derivatives, PIs) for normal cellular function cannot be overstated. Although they represent a small fraction of the total phospholipid within the cell, they are essential regulators of many cellular functions.
openaire   +2 more sources

Plant Flavoprotein Photoreceptors [PDF]

open access: yesPlant and Cell Physiology, 2014
Plants depend on the surrounding light environment to direct their growth. Blue light (300-500 nm) in particular acts to promote a wide variety of photomorphogenic responses including seedling establishment, phototropism and circadian clock regulation.
Christie, John M.   +3 more
openaire   +3 more sources

The photoreceptor mosaic [PDF]

open access: yesEye, 1998
The organisation of the human photoreceptor mosaic reflects evolutionary strategies for optimising visual information under a wide range of stimulus conditions: (1) The rod population dominates (max. 170,000/mm2 at c. 30 degrees sup.) except for the central 2 degrees and along the ora serrata.
openaire   +2 more sources

New insights into the mechanisms of phytochrome-cryptochrome coaction. [PDF]

open access: yes, 2018
Contents Summary 547 I. Introduction 547 II. Phytochromes mediate light-induced transcription of BICs to inactivate cryptochromes 548 III. PPKs phosphorylate light-signaling proteins and histones to affect plant development 548 IV.
Ahmad   +47 more
core   +1 more source

Dual-Cell Patch-Clamp Recording Revealed a Mechanism for a Ribbon Synapse to Process Both Digital and Analog Inputs and Outputs

open access: yesFrontiers in Cellular Neuroscience, 2021
A chemical synapse is either an action potential (AP) synapse or a graded potential (GP) synapse but not both. This study investigated how signals passed the glutamatergic synapse between the rod photoreceptor and its postsynaptic hyperpolarizing bipolar
Ji-Jie Pang, Fan Gao, Samuel M. Wu
doaj   +1 more source

Mouse rods signal through gap junctions with cones

open access: yeseLife, 2014
Rod and cone photoreceptors are coupled by gap junctions (GJs), relatively large channels able to mediate both electrical and molecular communication. Despite their critical location in our visual system and evidence that they are dynamically gated for ...
Sabrina Asteriti   +2 more
doaj   +1 more source

The Effect of Cone Opsin Mutations on Retinal Structure and the Integrity of the Photoreceptor Mosaic [PDF]

open access: yes, 2012
Purpose. To evaluate retinal structure and photoreceptor mosaic integrity in subjects with OPN1LW and OPN1MW mutations. Methods. Eleven subjects were recruited, eight of whom have been previously described.
Banin, Eyal   +19 more
core   +2 more sources

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