Results 101 to 110 of about 108,777 (309)

Photomorphogenesis and Photoreceptors

, 2016
Plants use light as their main source of energy and to gather information about their surroundings. The light environment is monitored through an extensive set of photoreceptors and largely dictates plant development through induction of processes such as germination and flowering, entrainment of the circadian clock and photomorphogenic responses ...
de Wit, M., Pierik, R.
openaire   +4 more sources

The Influence of Drosophila Spire and Myosin V During Mid‐Oogenesis Is Independent of Their Direct Interaction

Cytoskeleton, EarlyView.
ABSTRACT Cooperativity between cytoskeletal proteins is crucial for spatiotemporal coordination in biological processes, like oogenesis. In mammalian and Drosophila oogenesis, proper assembly and function of actin networks require coordination between actin assembly factors Spire and formins, as well as actin‐associated proteins like myosins and Rab ...
Joseph Y. Ong, Hannah M. Bailey, Emma Carley, Michelle Panzica, Merin Rixen, Neil Billington, Rong Liu, Margot E. Quinlan   +7 more
wiley   +1 more source

A new photosensory function for simple photoreceptors, the intrinsically photoresponsive neurons of the sea slug Onchidium

Frontiers in Cellular Neuroscience, 2009
Simple photoreceptors, namely intrinsically light-sensitive neurons without microvilli and/or cilia, have long been known to exist in the central ganglia of crayfish, Aplysia, Onchidium, and Helix.
Tsukasa Gotow, Takako NISHI
doaj   +1 more source

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

, 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, Bourbousse, Bourbousse, Casas-Mollano, Cashmore, Devlin, Guo, Hoecker, Huang, Hughes, Huq, Ichikawa, Jang, Leivar, Lian, Liu, Liu, Liu, Lu, Ma, Martinez-Garcia, Mas, Mohr, Ni, Ni, Ni, Nusinow, Pedmale, Quail, Rosenfeldt, Saijo, Sang, Sellaro, Shalitin, Sheerin, Su, Su, Tessadori, Tessadori, Wang, Wang, Wang, Wang, Wang, Weidler, Yang, Zheng, Zuo   +47 more
core   +1 more source

Single GAF Domain Phytochrome Exhibits a pH‐Dependent Shunt on the Millisecond Timescale

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
During their light‐induced photocycle, phytochromes can engage in a thermal reversion back to the initially excited state, denoted as a shunt. This study investigates a pH‐dependent shunt transition in the Pfr state of the All2699g1 phytochrome from Nostoc punctiforme using UV/Vis laser flash photolysis and kinetic modeling. The findings suggest a keto‐
Florian Trunk, Lisa Köhler, Tobias Fischer, Wolfgang Gärtner, Chen Song, Chavdar Slavov, Josef Wachtveitl   +6 more
wiley   +1 more source

RdgB2 is required for dim-light input into intrinsically photosensitive retinal ganglion cells. [PDF]

, 2015
A subset of retinal ganglion cells is intrinsically photosensitive (ipRGCs) and contributes directly to the pupillary light reflex and circadian photoentrainment under bright-light conditions.
Berson, David M, Elsaesser, Rebecca, Güler, Ali D, Hattar, Samer, Montell, Craig, Rupp, Alan, Sheng, Wenlong, Walker, Marquis T, Weng, Shijun   +8 more
core   +2 more sources

Epilepsy characteristics in patients with muscle‐eye‐brain disease: A systematic review of electroclinical features

Epileptic Disorders, EarlyView.
Abstract Background and Objectives Muscle‐Eye‐Brain disease (MEB) is a dystroglycanopathy that belongs to the congenital muscular dystrophies. Central nervous system manifestations include congenital brain abnormalities, neurodevelopmental delay, and epilepsy, making it a rare but important cause of developmental and epileptic encephalopathy.
Stefania Kalampokini, Evripidis Pityrigkas, Eleni Liouta, Georgia Pepe, Vasiliki Poulidou, Martha Spilioti, Vasilios K. Kimiskidis   +6 more
wiley   +1 more source

Morphological characterization and topographic analysis of multiple photoreceptor types in the retinae of mesopelagic hatchetfishes with tubular eyes

Frontiers in Ecology and Evolution, 2016
Marine hatchetfishes, Argyropelecus spp., are one of the 14 genera of mesopelagic teleosts, which possess tubular eyes. The tubular eyes are positioned dorsally on the head and consist of a main retina, which subtends a large dorsal binocular field, and ...
Lauren Michelle Biagioni, David M Hunt, David M Hunt, Shaun eCollin, Shaun eCollin, Shaun eCollin   +5 more
doaj   +1 more source

An n‐of‐1 gene‐directed drug repurposing trial for an ultrarare genetic condition

Epilepsia, EarlyView.
Abstract Objective Gain‐of‐function (GoF) variants in the KCNC1 potassium channel subunit gene (Kv3.1) cause motor/cognitive delays and hypotonia and have been associated with seizures. Fluoxetine has inhibitory effects on Kv3.1. However, open‐label nonrandomized administration is insufficient to guide clinical decision‐making in ultrarare conditions ...
Vedika Jha, Christina Tsetsos, Mark Bedford, Gregory Costain, Sunita Vohra, Juan Pablo Diaz Martinez, Elise Heon, Jacob Vorstman, Carolina Gorodetsky, Ajoy Vincent, Jesiqua Rapley, Lori Anderson, Evdokia Anagnostou, Danielle A. Baribeau   +13 more
wiley   +1 more source

MACULAR MICROSTRUCTURE CHANGES AFTER ENDOVITREAL MACULAR HOLE SURGERY

Офтальмохирургия, 2015
Purpose. To study macular microstructural changes after idiopathic full-thickness macular hole (IMH) surgery.Material and methods. Fifty-seven eyes with IMH of 53 patients were examined by the spectral-domain optical coherence tomography.
A. A. Shpak, D. O. Shkvorchenko, I. Kh. Sharafetdinov, S. N. Ogorodnikova, O. A. Yuhanova   +4 more
doaj