Results 71 to 80 of about 4,900,943 (176)

Circadian regulation of reproduction and neoblast cell division in the catenulid flatworm Stenostomum virginianum (Platyhelminthes)

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, Ian D. Deas, J. Kennon Smith, Samuel B. Robinson, Adam M. Reitzel, Julian P. S. Smith III   +5 more
wiley   +1 more source

Sonic hedgehog promotes rod photoreceptor differentiation in mammalian retinal cells in vitro. [PDF]

, 1997
journal articleThe hedgehog gene family encodes secreted proteins important in many developmental patterning events in both vertebrates and invertebrates.
Levine, Edward M., Roelink, Henk; Turner, Jennifer; Reh, Thomas A.   +1 more
core  

Rapid reversion from monomer to dimer regenerates the ultraviolet-B photoreceptor UV RESISTANCE LOCUS8 in intact arabidopsis plants [PDF]

, 2013
Arabidopsis (Arabidopsis thaliana) UV RESISTANCE LOCUS8 (UVR8) is a photoreceptor that specifically mediates photomorphogenic responses to ultraviolet (UV)-B in plants.
Jenkins, G.I., Heilmann, M.
core   +1 more source

Evidence for glutamate-mediated excitotoxic mechanisms during photoreceptor degeneration in the rd1 mouse retina [PDF]

, 2005
PURPOSE: Kinetic studies of photoreceptor cell death in the retinal degeneration (rd1) mouse model suggest that photoreceptor degeneration could result from cumulative damage.
Neveux, N, Forster, V, Picaud, S, Leveillard, T, Sahel, JA, Delyfer, MN   +5 more
core  

Gogo receptor contributes to retinotopic map formation and prevents R1-6 photoreceptor axon bundling. [PDF]

PLoS ONE, 2013
BACKGROUND:Topographic maps form the basis of neural processing in sensory systems of both vertebrate and invertebrate species. In the Drosophila visual system, neighboring R1-R6 photoreceptor axons innervate adjacent positions in the first optic ...
Irina Hein, Takashi Suzuki, Ilona C Grunwald Kadow   +2 more
doaj   +1 more source

Müller Glia Subtypes Define Neuro‐Glial Associations and Spatial Morphogen Axes in the Zebrafish Retina

Glia, Volume 74, Issue 11, November 2026.
Zebrafish Müller glia are heterogeneous in the early larval retina. Zebrafish Müller glia subtypes define a spatial axis of retinoic acid metabolism. Neuron‐associated glial programs identified in Zebrafish Müller glia are evolutionarily conserved in mammals. ABSTRACT Müller glia are instrumental macroglia of the vertebrate retina, once thought to be a
Samuel S. Storey, Carrie L. Hehr, Shaelene Standing, Sarah McFarlane   +3 more
wiley   +1 more source

Analysis of transcriptional regulatory pathways of photoreceptor genes by expression profiling of the Otx2-deficient retina. [PDF]

PLoS ONE, 2011
In the vertebrate retina, the Otx2 transcription factor plays a crucial role in the cell fate determination of both rod and cone photoreceptors. We previously reported that Otx2 conditional knockout (CKO) mice exhibited a total absence of rods and cones ...
Yoshihiro Omori, Kimiko Katoh, Shigeru Sato, Yuki Muranishi, Taro Chaya, Akishi Onishi, Takashi Minami, Takashi Fujikado, Takahisa Furukawa   +8 more
doaj   +1 more source

Ocular Manifestations of Infectious Salmon Anaemia Virus Infection in Atlantic Salmon (Salmo salar)

Journal of Fish Diseases, Volume 49, Issue 11, November 2026.
ABSTRACT Eyes are essential sensory organs needed by teleost Atlantic salmon for high visual acuity and survival in both the wild and in aquaculture settings. In this work, we assessed the ocular manifestations of Infectious Salmon Anaemia Virus (ISAV) infection in Atlantic salmon by a cohabitation‐mediated infection assay and histological and ...
Emily Mahon, Rebecca R. Kwabiah, Hélène Paradis, Manuel A. Soto‐Dávila, Sathees Duglas, Raja Ram Gurung, Thurka Paramanathan, Ignacio Vasquez, Shams Al‐Badoosh, John Law, Javier Santander, Mark D. Fast, Robert L. Gendron   +12 more
wiley   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

Advanced Science, Volume 13, Issue 58, 19 October 2026.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang, Chunhua Ren, Zhou Qin, Yimeng Cui, Bingbing Zhang, Peng Luo, Xuan Wang, Yaoqi Xie, Xin Zhang, Aifen Yan, Yang Zhang, Dingding Fan, Yang Liu, Wenjie Pan, Xiao Jiang, Lihong Yuan, Haipeng Qin, David M. Irwin, Chaoqun Hu, Yang Liu, Ting Chen   +20 more
wiley   +1 more source

Targeted ablation of Crb2 in photoreceptor cells induces retinitis pigmentosa [PDF]

, 2014
In humans, the Crumbs homolog-1 (CRB1) gene is mutated in autosomal recessive Leber congenital amaurosis and early-onset retinitis pigmentosa. In mammals, the Crumbs family is composed of: CRB1, CRB2, CRB3A and CRB3B.
Klooster, Jan, Celso Henrique Alves, John G. Flannery, Seide, Christina, Verhaagen, J., Alves, Celso Henrique, Beck, Susanne C., Jan Klooster, Vithiyanjali Sothilingam, Beck, Susanne C, Seeliger, Mathias W, Lucie P. Pellissier, Seeliger, Mathias W., Garrido, Marina Garcia, Christina Seide, Flannery, John G., Marina Garcia Garrido, Flannery, John G, Rogier M. Vos, Sothilingam, Vithiyanjali, Pellissier, Lucie P, Vos, Rogier M, Mathias W. Seeliger, Verhaagen, Joost, Pellissier, Lucie P., Joost Verhaagen, Takahisa Furukawa, Garcia Garrido, Marina, Susanne C. Beck, Wijnholds, J., Furukawa, Takahisa, Vos, Rogier M., Wijnholds, Jan, Klooster, J.   +33 more
core   +1 more source