Electrical coupling of neuro-ommatidial photoreceptor cells in the blowfly [PDF]
A new method of microstimulation of the blowfly eye using corneal neutralization was applied to the 6 peripheral photoreceptor cells (R1-R6) connected to one neuro-ommatidium (and thus looking into the same direction), whilst the receptor potential of a ...
A Dubs +29 more
core +2 more sources
Gene encoding cytoskeletal proteins in Drosophila rhabdomeres. [PDF]
The ninaC gene is one of eight nina (neither inactivation nor afterpotential) genes identified from mutations that drastically reduce the amount of rhodopsin in the compound eye of Drosophila melanogaster. The gene has been cytogenetically localized to the 27E-28B region of the second chromosome. NaDodSO4/PAGE analysis of eye proteins of flies carrying
H, Matsumoto, K, Isono, Q, Pye, W L, Pak
openaire +2 more sources
Phospholipase D activity couples plasma membrane endocytosis with retromer dependent recycling
During illumination, the light-sensitive plasma membrane (rhabdomere) of Drosophila photoreceptors undergoes turnover with consequent changes in size and composition.
Rajan Thakur +12 more
doaj +1 more source
Xport-A functions as a chaperone by stabilizing the first five transmembrane domains of rhodopsin-1
Summary: Rhodopsin-1 (Rh1), the main photosensitive protein of Drosophila, is a seven-transmembrane domain protein, which is inserted co-translationally in the endoplasmic reticulum (ER) membrane.
Catarina J. Gaspar +6 more
doaj +1 more source
The Stiles-Crawford Effect in the Eye of the Blowfly, Calliphora erythrocephala [PDF]
Stiles-Crawford-like effects (that is, directional sensitivity of the retina) were investigated in the fly’s eye. Intracellular recordings from the visual sense cells were made, and the radiation patterns emerging from the photoreceptors with antidromic ...
Hateren, J.H. van,
core +1 more source
Refractive index of fly rhabdomeres [PDF]
The refractive index reported previously for the rhabdomeres of flies (1.349) has been corrected for waveguide effects. The presented correction method has yielded n1 = 1.365 ± 0.006. It is argued that an acceptable estimate for the refractive index of the inhomogeneous surroundings of fly rhabdomeres is n2 = 1.339 ± 0.002.
openaire +1 more source
Whole-mount immunofluorescent labeling of the adult fly retina
Summary: The adult Drosophila compound eye is an ideal in vivo model for studying biological questions. However, light microscopy of this tissue requires cumbersome embedding and sectioning.
Min-Chun Hsiao +5 more
doaj +1 more source
Random Photon Absorption Model Elucidates How Early Gain Control in Fly Photoreceptors Arises from Quantal Sampling [PDF]
Many diurnal photoreceptors encode vast real-world light changes effectively, but how this performance originates from photon sampling is unclear. A 4-module biophysically-realistic fly photoreceptor model, in which information capture is limited by the ...
Bevington +29 more
core +1 more source
Exploring Excitotoxicity and Regulation of a Constitutively Active TRP Ca2+ Channel in Drosophila
Unregulated Ca2+ influx affects intracellular Ca2+ homoeostasis, which may lead to neuronal death. In Drosophila, following the activation of rhodopsin the TRP Ca2+ channel is open to mediate the light-dependent depolarization.
Bih-Hwa Shieh +2 more
doaj +1 more source
Rhodopsins (Rhs) are light sensors, and Rh1 is the major Rh in the Drosophila photoreceptor rhabdomere membrane. Upon photoactivation, a fraction of Rh1 is internalized and degraded, but it remains unclear how the rhabdomeric Rh1 pool is replenished and ...
Bo Xiong +12 more
doaj +1 more source

