retina
- Identification of novel circadian transcripts in the zebrafish retina
Summary: Characterization of the day and night transcriptome of the adult zebrafish retina reveals novel circadian transcripts.
- Environmental, population and life-stage plasticity in the visual system of Atlantic cod
Highlighted Article: Clarification of the potential of visual tuning in Atlantic cod through differential opsin usage during changes in environmental light, with reference to the influence of developmental pre-programming and population ecotypes.
- Photoreceptor signalling is sufficient to explain the detectability threshold of insect aerial pursuers
Summary: Across four insect species, the smallest target size a photoreceptor can robustly encode is sufficient to explain the detection limit of higher-order, target-detecting neurons or observed behavioural pursuits.
- Giving invertebrates an eye exam: an ophthalmoscope that utilizes the autofluorescence of photoreceptors
Summary: We describe a micro-ophthalmoscope that takes advantage of autofluorescent properties of invertebrate photoreceptors and allows for in vivo testing of refractive errors in small arthropod eyes.
- Expression and light-dependent translocation of β-arrestin in the visual system of the terrestrial slug Limax valentianus
Summary: Immunostaining of β-arrestin reveals its light-dependent translocation in the photoreceptors of a terrestrial slug, and also shows the utility of β-arrestin as a molecular marker of optic nerves.
- Retinal specialization through spatially varying cell densities and opsin coexpression in cichlid fish
Summary: Cichlid retinas show spatial variation with an area centralis that has higher photoreceptor and ganglion cell density and less opsin coexpression. Visual modeling suggests this may reflect a trade-off between colour discrimination and contrast detection.
- Effect of light intensity on flight control and temporal properties of photoreceptors in bumblebees
Summary: Bumblebees have both behavioural (reduction in flight speed) and retinal (reduction in response speed of the photoreceptors) adaptations to allow them to fly in dim light.