Results 1 to 10 of about 3,414 (84)
Light-modulated stem cells in the camera-type eye of an annelid model for adult brain plasticity [PDF]
Nature CommunicationsCamera-type eyes in vertebrates and cephalopods are striking examples of parallel evolution of a complex structure. While comparisons have focused on these two groups, camera-type eyes with likely high functionality are also found in other invertebrate ...
Nadja Milivojev +6 more
doaj +2 more sources
Developmental Biology, 2012 The two fundamental types of photoreceptor cells have evolved unique structures to expand the apical membrane to accommodate the phototransduction machinery, exemplified by the cilia-based outer segment of the vertebrate photoreceptor cell and the microvilli-based rhabdomere of the invertebrate photoreceptor.
Jing Nie +2 more
exaly +3 more sources
Histamine Recycling Is Mediated by CarT, a Carcinine Transporter in Drosophila Photoreceptors. [PDF]
PLoS Genetics, 2015 Histamine is an important chemical messenger that regulates multiple physiological processes in both vertebrate and invertebrate animals. Even so, how glial cells and neurons recycle histamine remains to be elucidated.
Ying Xu +5 more
doaj +1 more source
Targeting of Drosophila rhodopsin requires helix 8 but not the distal C-terminus. [PDF]
PLoS ONE, 2009 BACKGROUND:The fundamental role of the light receptor rhodopsin in visual function and photoreceptor cell development has been widely studied. Proper trafficking of rhodopsin to the photoreceptor membrane is of great importance.
Ines Kock +4 more
doaj +1 more source
Activation of Transducin by Bistable Pigment Parapinopsin in the Pineal Organ of Lower Vertebrates. [PDF]
PLoS ONE, 2015 Pineal organs of lower vertebrates contain several kinds of photosensitive molecules, opsins that are suggested to be involved in different light-regulated physiological functions. We previously reported that parapinopsin is an ultraviolet (UV)-sensitive
Emi Kawano-Yamashita +5 more
doaj +1 more source
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 +2 more
doaj +1 more source
The light-sensitive channel and its second messenger in invertebrate photoreceptor cells.
Seibutsu Butsuri, 1997 In contrast to vertebrate phototransduction, invertebrate one remains unclear. This review gives a very brief and bold outline of invertebrate phototransduction, lying stress on the second messenger and light-sensitive channel that mediates the photroreceptor potential. Both IP3/Ca2+ and cGMP are the main candidates for the second messenger.
GOTOW, Tsukasa, NISHI, Takao
openaire +2 more sources
Frontiers in Neural Circuits, 2016 Synaptic feedback from interneurons to photoreceptors can help to optimize visual information flow by balancing its allocation on retinal pathways under changing light conditions. But little is known about how this critical network operation is regulated
An eDau +7 more
doaj +1 more source
Ciliary photoreceptors in the cerebral eyes of a protostome larva
EvoDevo, 2011 Background Eyes in bilaterian metazoans have been described as being composed of either ciliary or rhabdomeric photoreceptors. Phylogenetic distribution, as well as distinct morphologies and characteristic deployment of different photopigments (ciliary ...
Passamaneck Yale J +4 more
doaj +1 more source
Tachykinins: Neuropeptides That Are Ancient, Diverse, Widespread and Functionally Pleiotropic
Frontiers in Neuroscience, 2019 Tachykinins (TKs) are ancient neuropeptides present throughout the bilaterians and are, with some exceptions, characterized by a conserved FX1GX2Ramide carboxy terminus among protostomes and FXGLMamide in deuterostomes.
Dick R. Nässel +3 more
doaj +1 more source