Université de Fribourg

A microfluidics-based method for measuring neuronal activity in Drosophila chemosensory neurons

Giesen, Lena van ; Neagu-Maier, G. Larisa ; Kwon, Jae Young ; Sprecher, Simon G.

In: Nature Protocols, 2016, vol. 11, no. 12, p. 2389–2400

Monitoring neuronal responses to defined sensory stimuli is a powerful and widely used approach for understanding sensory coding in the nervous system. However, providing precise, stereotypic and reproducible cues while concomitantly recording neuronal activity remains technically challenging. Here we describe the fabrication and use of a microfluidics system that allows precise temporally...

Université de Fribourg

An expression atlas of variant ionotropic glutamate receptors identifies a molecular basis of carbonation sensing

Sánchez-Alcañiz, Juan Antonio ; Silbering, Ana Florencia ; Croset, Vincent ; Zappia, Giovanna ; Sivasubramaniam, Anantha Krishna ; Abuin, Liliane ; Sahai, Saumya Yashmohini ; Münch, Daniel ; Steck, Kathrin ; Auer, Thomas O. ; Cruchet, Steeve ; Neagu-Maier, G. Larisa ; Sprecher, Simon G. ; Ribeiro, Carlos ; Yapici, Nilay ; Benton, Richard

In: Nature Communications, 2018, vol. 9, no. 1, p. 4252

Little is known about the role of variant ionotropic glutamate receptors (IRs) in insect taste. Here the authors characterise the expression pattern of IRs in the Drosophila gustatory system and highlight the role of one receptor, IR56d, in the detection of carbonation

Université de Fribourg

An expression atlas of chemosensory ionotropic glutamate receptors identifies a molecular basis of carbonation detection

Sánchez-Alcañiz, Juan Antonio ; Silbering, Ana Florencia ; Croset, Vincent ; Zappia, Giovanna ; Sivasubramaniam, Anantha Krishna ; Abuin, Liliane ; Sahai, Saumya Yashmohini ; Auer, Thomas O. ; Cruchet, Steeve ; Neagu-Maier, G. Larisa ; Sprecher, Simon G. ; Yapici, Nilay ; Benton, Richard

Taste perception is thought to involve the encoding of appetitive and aversive chemical cues in food through a limited number of sensory pathways. Through expression analysis of the complete repertoire of Drosophila Ionotropic Receptors (IRs), a sensory subfamily of ionotropic glutamate receptors, we reveal that the majority of IRs is expressed in diverse peripheral neuron populations across...