Carotenoid composition and conformation in retinal oil droplets of the domestic chicken

被引：9

作者：

Arteni, Ana-Andreea ^{[1
]}

LaFountain, Amy M. ^{[2
]}

Alexandre, Maxime T. A. ^{[1
]}

Fradot, Mathias ^{[3
]}

Mendes-Pinto, Maria M. ^{[1
]}

Sahel, Jose-Alain ^{[3
]}

Picaud, Serge ^{[3
]}

Franke, Harry A. ^{[2
]}

Robert, Bruno ^{[1
]}

Pascal, Andrew A. ^{[1
]}

机构：

[1] Univ Paris Saclay, CNRS, CEA, I2BC, Gif Sur Yvette, France

[2] Univ Connecticut, Dept Chem, U-60, Storrs, CT USA

[3] Sorbonne Univ, Inst Vis, CNRS, INSERM, Paris, France

来源：

PLOS ONE | 2019年 / 14卷 / 05期

基金：

欧洲研究理事会;

关键词：

D O I：

10.1371/journal.pone.0217418

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Carotenoid-containing oil droplets in the avian retina act as cut-off filters to enhance colour discrimination. We report a confocal resonance Raman investigation of the oil droplets of the domestic chicken, Gallus gallus domesticus. We show that all carotenoids present are in a constrained conformation, implying a locus in specific lipid binding sites. In addition, we provide proof of a recent conclusion that all carotenoid-containing droplets contain a mixture of all carotenoids present, rather than only a subset of them-a conclusion that diverges from the previously-held view. Our results have implications for the mechanism(s) giving rise to these carotenoid mixtures in the differently-coloured droplets.

引用

页数：14

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