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Haute Ecole d'Ingénierie

Four-primary light environment system for specific light stimulation of photoreceptors of the eye

Barman, Corentin ; Geier, Martial (Dir.)

Mémoire de bachelor : Haute Ecole d'Ingénierie, 2018.

Smartphones, televisions, computer screens, LED lights, every day we are exposed to artificial lighting and we still don’t know all of the consequences. LED-based technology becomes more and more popular every day, thanks to their efficiency and durability. But as with every recent technology, we take them for granted without understanding all of the influence they could have on our body....

Université de Fribourg

Glass confers rhabdomeric photoreceptor identity in Drosophila, but not across all metazoans

Bernardo‑Garcia, F. Javier ; Syed, Maryam ; Jékely, Gáspár ; Sprecher, Simon G.

In: EvoDevo, 2019, vol. 10, no. 1, p. 4

Across metazoans, visual systems employ different types of photoreceptor neurons (PRs) to detect light. These include rhabdomeric PRs, which exist in distantly related phyla and possess an evolutionarily conserved phototransduction cascade. While the development of rhabdomeric PRs has been thoroughly studied in the fruit fly Drosophila melanogaster, we still know very little about how they...

Consortium of Swiss Academic Libraries

Plant Photoreceptors: Phylogenetic Overview

Lariguet, Patricia ; Dunand, Christophe

In: Journal of Molecular Evolution, 2005, vol. 61, no. 4, p. 559-569

Université de Fribourg

Dedicated photoreceptor pathways in Drosophila larvae mediate navigation by processing either spatial or temporal cues

Humberg, Tim-Henning ; Bruegger, Pascal ; Afonso, Bruno ; Zlatic, Marta ; Truman, James W. ; Gershow, Marc ; Samuel, Aravinthan ; Sprecher, Simon G.

In: Nature Communications, 2018, vol. 9, no. 1, p. 1260

To integrate changing environmental cues with high spatial and temporal resolution is critical for animals to orient themselves. Drosophila larvae show an effective motor program to navigate away from light sources. How the larval visual circuit processes light stimuli to control navigational decision remains unknown. The larval visual system is composed of two sensory input channels,...

Université de Fribourg

Genetic control of photoreceptor terminal differentiation in Drosophila melanogaster

Bernardo-Garcia, F. Javier ; Sprecher, Simon (Dir.)

Thèse de doctorat : Université de Fribourg, 2018 ; no. 2066.

Why do photoreceptors differentiate in the eye? Though simple, biologically this is an important question, and it may prove complex to answer. To present a bigger picture: animals have evolved a diversity of highly specialised sensory organs, which they use to obtain information from their environment and thus survive. These organs contain different types of receptor neurons. For example, there...