Results 61 to 70 of about 194,952 (354)

UV Radiation Induces Specific Changes in the Carotenoid Profile of Arabidopsis thaliana

Biomolecules, 2022
UV-B and UV-A radiation are natural components of solar radiation that can cause plant stress, as well as induce a range of acclimatory responses mediated by photoreceptors.
Uthman O. Badmus, Gaia Crestani, Natalie Cunningham, Michel Havaux, Otmar Urban, Marcel A. K. Jansen   +5 more
doaj   +1 more source

Cis-regulatory basis of sister cell type divergence in the vertebrate retina [PDF]

, 2019
Multicellular organisms evolved via repeated functional divergence of transcriptionally related sister cell types, but the mechanisms underlying sister cell type divergence are not well understood.
Corbo, Joseph C, Hughes, Andrew E.O., Lawrence, Karen A, Murphy, Daniel P, Myers, Connie A   +4 more
core   +3 more sources

Adaptive Optics Reveals Photoreceptor Abnormalities in Diabetic Macular Ischemia

PLoS ONE, 2017
Diabetic macular ischemia (DMI) is a phenotype of diabetic retinopathy (DR) associated with chronic hypoxia of retinal tissue. The goal of this prospective observational study was to report evidence of photoreceptor abnormalities using adaptive optics ...
Peter L. Nesper, F. Scarinci, A. Fawzi
semanticscholar   +1 more source

Physiological Responses of Cucumber Seedlings to Different Supplemental Light Duration of Red and Blue LED

Frontiers in Plant Science, 2021
Normal development of plants is inhibited by inadequate light in winter in greenhouses in Northwest China. Growth lamps, using light-emitting diodes (LEDs) with red blue light (7R2B), were used to supplement daylight for 1, 2, and 3 h.
Shuya Wang, Hua Fang, Jianming Xie, Yue Wu, Zhongqi Tang, Zeci Liu, Jian Lv, Jian Lv, Jihua Yu, Jihua Yu   +9 more
doaj   +1 more source

Avian photoreceptor patterns represent a disordered hyperuniform solution to a multiscale packing problem

, 2014
Optimal spatial sampling of light rigorously requires that identical photoreceptors be arranged in perfectly regular arrays in two dimensions. Examples of such perfect arrays in nature include the compound eyes of insects and the nearly crystalline ...
Corbo, Joseph C., Hatzikirou, Haralampos, Jiao, Yang, Lau, Timothy, Meyer-Hermann, Michael, Torquato, Salvatore   +5 more
core   +1 more source

Differentiation of Photoreceptors

, 2021
Chapter 7 discusses how photoreceptors and other cells found in the retina of the vertebrate eye or in the pineal body differentiate. These cell types do not develop from cranial placodes but from the neural tube. However, part three of the book will reveal that these cell types are evolutionarily closely related to other sensory cell types (e.g ...
openaire   +1 more source

Neural superposition and oscillations in the eye of the blowfly [PDF]

, 1987
Neural superposition in the eye of the blowfly Calliphora erythrocephala was investigated by stimulating single photoreceptors using corneal neutralization through water immersion.
D Burkhardt, H Reuter, H Reuter, J Scholes, JH Hateren van, K Kirschfeld, N Franceschini, NH Sabah, PG Lillywhite, RS Lewis, SB Laughlin, SB Laughlin, SR Shaw, SR Shaw, SR Shaw, T Matic, V Braitenberg, V Braitenberg, W Reichardt   +18 more
core   +2 more sources

Transplanted photoreceptor precursors transfer proteins to host photoreceptors by a mechanism of cytoplasmic fusion

Nature Communications, 2016
Photoreceptor transplantation is a potential future treatment for blindness caused by retinal degeneration. Photoreceptor transplantation restores visual responses in end-stage retinal degeneration, but has also been assessed in non-degenerate retinas ...
Mandeep S. Singh, J. Balmer, A. Barnard, S. Aslam, D. Moralli, C. Green, Alona Barnea-Cramer, Isabel Duncan, R. MacLaren   +8 more
semanticscholar   +1 more source

Glutamine catabolism supports amino acid biosynthesis and suppresses the integrated stress response to promote photoreceptor survival

eLife
Photoreceptor loss results in vision loss in many blinding diseases, and metabolic dysfunction underlies photoreceptor degeneration. So, exploiting photoreceptor metabolism is an attractive strategy to prevent vision loss.
Moloy T Goswami, Eric Weh, Shubha Subramanya, Katherine M Weh, Hima Bindu Durumutla, Heather Hager, Nicholas Miller, Sraboni Chaudhury, Anthony Andren, Peter Sajjakulnukit, Li Zhang, Cagri Besirli, Costas A Lyssiotis, Thomas J Wubben   +13 more
doaj   +1 more source

Light-Induced Thiol Oxidation of Recoverin Affects Rhodopsin Desensitization

Frontiers in Molecular Neuroscience, 2019
The excessive light illumination of mammalian retina is known to induce oxidative stress and photoreceptor cell death linked to progression of age-related macular degeneration.
Evgeni Yu. Zernii, Evgeni Yu. Zernii, Aliya A. Nazipova, Ekaterina L. Nemashkalova, Alexey S. Kazakov, Olga S. Gancharova, Olga S. Gancharova, Marina V. Serebryakova, Natalya K. Tikhomirova, Viktoriia E. Baksheeva, Vasiliy I. Vladimirov, Dmitry V. Zinchenko, Pavel P. Philippov, Ivan I. Senin, Sergei E. Permyakov   +14 more
doaj   +1 more source