Optics of cone photoreceptors in the chicken (Gallus gallus domesticus).

Research output: Contribution to journalArticle

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Optics of cone photoreceptors in the chicken (Gallus gallus domesticus). / Wilby, David; Toomey, Matthew B; Olsson, Peter; Frederiksen, Rikard; Cornwall, M Carter; Oulton, Ruth; Kelber, Almut; Corbo, Joseph C; Roberts, Nicholas W.

In: Journal of the Royal Society Interface, Vol. 12, No. 111, 20150591, 2015.

Research output: Contribution to journalArticle

Harvard

Wilby, D, Toomey, MB, Olsson, P, Frederiksen, R, Cornwall, MC, Oulton, R, Kelber, A, Corbo, JC & Roberts, NW 2015, 'Optics of cone photoreceptors in the chicken (Gallus gallus domesticus).', Journal of the Royal Society Interface, vol. 12, no. 111, 20150591. https://doi.org/10.1098/rsif.2015.0591

APA

Wilby, D., Toomey, M. B., Olsson, P., Frederiksen, R., Cornwall, M. C., Oulton, R., ... Roberts, N. W. (2015). Optics of cone photoreceptors in the chicken (Gallus gallus domesticus). Journal of the Royal Society Interface, 12(111), [20150591]. https://doi.org/10.1098/rsif.2015.0591

CBE

Wilby D, Toomey MB, Olsson P, Frederiksen R, Cornwall MC, Oulton R, Kelber A, Corbo JC, Roberts NW. 2015. Optics of cone photoreceptors in the chicken (Gallus gallus domesticus). Journal of the Royal Society Interface. 12(111). https://doi.org/10.1098/rsif.2015.0591

MLA

Vancouver

Wilby D, Toomey MB, Olsson P, Frederiksen R, Cornwall MC, Oulton R et al. Optics of cone photoreceptors in the chicken (Gallus gallus domesticus). Journal of the Royal Society Interface. 2015;12(111). 20150591. https://doi.org/10.1098/rsif.2015.0591

Author

Wilby, David ; Toomey, Matthew B ; Olsson, Peter ; Frederiksen, Rikard ; Cornwall, M Carter ; Oulton, Ruth ; Kelber, Almut ; Corbo, Joseph C ; Roberts, Nicholas W. / Optics of cone photoreceptors in the chicken (Gallus gallus domesticus). In: Journal of the Royal Society Interface. 2015 ; Vol. 12, No. 111.

RIS

TY - JOUR

T1 - Optics of cone photoreceptors in the chicken (Gallus gallus domesticus).

AU - Wilby, David

AU - Toomey, Matthew B

AU - Olsson, Peter

AU - Frederiksen, Rikard

AU - Cornwall, M Carter

AU - Oulton, Ruth

AU - Kelber, Almut

AU - Corbo, Joseph C

AU - Roberts, Nicholas W

PY - 2015

Y1 - 2015

N2 - Vision is the primary sensory modality of birds, and its importance is evident in the sophistication of their visual systems. Coloured oil droplets in the cone photoreceptors represent an adaptation in the avian retina, acting as long-pass colour filters. However, we currently lack understanding of how the optical properties and morphology of component structures (e.g. oil droplet, mitochondrial ellipsoid and outer segment) of the cone photoreceptor influence the transmission of light into the outer segment and the ultimate effect they have on receptor sensitivity. In this study, we use data from microspectrophotometry, digital holographic microscopy and electron microscopy to inform electromagnetic models of avian cone photoreceptors to quantitatively investigate the integrated optical function of the cell. We find that pigmented oil droplets primarily function as spectral filters, not light collection devices, although the mitochondrial ellipsoid improves optical coupling between the inner segment and oil droplet. In contrast, unpigmented droplets found in violet-sensitive cones double sensitivity at its peak relative to other cone types. Oil droplets and ellipsoids both narrow the angular sensitivity of single cone photoreceptors, but not as strongly as those in human cones.

AB - Vision is the primary sensory modality of birds, and its importance is evident in the sophistication of their visual systems. Coloured oil droplets in the cone photoreceptors represent an adaptation in the avian retina, acting as long-pass colour filters. However, we currently lack understanding of how the optical properties and morphology of component structures (e.g. oil droplet, mitochondrial ellipsoid and outer segment) of the cone photoreceptor influence the transmission of light into the outer segment and the ultimate effect they have on receptor sensitivity. In this study, we use data from microspectrophotometry, digital holographic microscopy and electron microscopy to inform electromagnetic models of avian cone photoreceptors to quantitatively investigate the integrated optical function of the cell. We find that pigmented oil droplets primarily function as spectral filters, not light collection devices, although the mitochondrial ellipsoid improves optical coupling between the inner segment and oil droplet. In contrast, unpigmented droplets found in violet-sensitive cones double sensitivity at its peak relative to other cone types. Oil droplets and ellipsoids both narrow the angular sensitivity of single cone photoreceptors, but not as strongly as those in human cones.

U2 - 10.1098/rsif.2015.0591

DO - 10.1098/rsif.2015.0591

M3 - Article

VL - 12

JO - Journal of the Royal Society Interface

T2 - Journal of the Royal Society Interface

JF - Journal of the Royal Society Interface

SN - 1742-5662

IS - 111

M1 - 20150591

ER -