Results 31 to 40 of about 1,619 (156)
Exquisite light sensitivity of Drosophila melanogaster cryptochrome. [PDF]
PLoS Genetics, 2013 Drosophila melanogaster shows exquisite light sensitivity for modulation of circadian functions in vivo, yet the activities of the Drosophila circadian photopigment cryptochrome (CRY) have only been observed at high light levels.
Pooja Vinayak +7 more
doaj +1 more source
Photochemistry and Photobiology, EarlyView.The circadian clock and melatonin coordinate homeostasis in many animals, yet their influence on reproduction and neoblast proliferation has only been shown in triclads. This study demonstrates that the early‐branching catenulid Stenostomum virginianum contains photoreceptive refractile bodies, synthesizes endogenous melatonin, and that exogenous ...
Daniel L. Stanton +5 more
wiley +1 more source
Zebrafish Circadian Clock Entrainment and the Importance of Broad Spectral Light Sensitivity
Frontiers in Physiology, 2020 One of the key defining features of an endogenous circadian clock is that it can be entrained or set to local time. Though a number of cues can perform this role, light is the predominant environmental signal that acts to entrain circadian pacemakers in ...
Inga A. Frøland Steindal +2 more
doaj +1 more source
Photochemistry and Photobiology, EarlyView.The left panel reports the measured time course data of melatonin concentration in the blood plasma of 17 BL‐Rs and 15 BL‐NRs at baseline, during a two‐hour stay in the dark, during a one‐hour light exposure to blue light, and again in the dark. The right panel shows the magnitude of melatonin concentration after 60 min of exposure to warm white, cool ...
Helmut Piazena +4 more
wiley +1 more source
Photopigment transmittance imaging of the primate photoreceptor mosaic
, 1996 We introduce a new technique for classifying many photoreceptors simultaneously in fresh, excised primate retina on the basis of their absorptance spectra.
OS Packer, DR Williams, DG Bensinger
core +1 more source
Characterization of the melanopsin gene (Opn4x) of diurnal and nocturnal snakes
BMC Evolutionary Biology, 2019 Background A number of non-visual responses to light in vertebrates, such as circadian rhythm control and pupillary light reflex, are mediated by melanopsins, G-protein coupled membrane receptors, conjugated to a retinal chromophore.
Einat Hauzman +3 more
doaj +1 more source
Glia, Volume 74, Issue 12, December 2026.Müller glia and the retinal pigment epithelium interact around cone outer segment in the subretinal space of both zebrafish and mouse. The contacts are established early during development but subsequent to outer segment emergence. ABSTRACT Homeostasis of the vertebrate retina critically depends on two non‐neuronal cell populations, Müller glia and the
Maria Sharkova +6 more
wiley +1 more source
, 2019 Dataset: HPLC Photopigment Data for BioassaysResults of HPLC derived photopigment concentrations for bioassays done in the North Inlet Estuary - Georgetown, South Carolina during 2014 (Photomixotrophy project) For a complete list of measurements, refer
Pinckney, James
core +1 more source
A field-deployable and handheld fluorometer for environmental water quality monitoring
Micro and Nano Systems Letters, 2018 This work reports the development of a field-deployable and fully handheld fluorometer for environmental water monitoring. Our developed fluorimeter can detect both green algae and cyanobacteria (blue-green algae) while simultaneously differentiating and
Young-Ho Shin +2 more
doaj +1 more source
PLoS Biology, 2015 Circadian rhythms are an essential property of life on Earth. In mammals, these rhythms are coordinated by a small set of neurons, located in the suprachiasmatic nuclei (SCN).
Hester C van Diepen +2 more
doaj +1 more source