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Keywords: carotenoid
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Journal Articles
J Exp Biol (2021) 224 (22): jeb243182.
Published: 18 November 2021
... of carotenoids. However, a paucity of long-term dietary manipulation studies means that little is known of the role of individual carotenoid compounds in ontogenetic colour change. We know even less about the influence of individual compounds at different doses (dose effects). The present study aimed to use...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (11): 1975–1983.
Published: 1 June 2017
..., predation, defence and thermoregulation, but are thought to lack many types of pigments common in other animals. Ommochromes, bilins and eumelanin have been identified in spiders, but not carotenoids or melanosomes. Here, we combined optical microscopy, refractive index matching, confocal Raman...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (4): 584–589.
Published: 15 February 2012
... with light such as birefringence, differential reflection or scattering. We describe a novel biological polarizer in a marine crustacean based on linear dichroism of a carotenoid molecule. The red-colored, dichroic ketocarotenoid pigment astaxanthin is deposited in the antennal scale of a stomatopod...
Journal Articles
J Exp Biol (2012) 215 (2): 343–350.
Published: 15 January 2012
... hypodermis. Despite the difference in colour triggered by this adaptive response, total levels of the predominant carotenoid pigment, astaxanthin, are not modified, suggesting that another mechanism is regulating this phenomenon. Astaxanthin binds to a specific protein called crustacyanin (CRCN...
Journal Articles
J Exp Biol (2011) 214 (20): 3467–3473.
Published: 15 October 2011
...Elin Sild; Tuul Sepp; Marju Männiste; Peeter Hõrak SUMMARY Carotenoid-based integument colouration is extremely widespread in the animal kingdom. It has been hypothesized that carotenoid colouration is used for communicating the health status of the bearers because carotenoids are efficient...
Includes: Supplementary data
Journal Articles
J Exp Biol (2008) 211 (9): 1512–1519.
Published: 1 May 2008
... was measured over two separate years in response to two important modifiers of crustacean shell colour, dietary carotenoid and background substrate colour. Changes in shell colour during this colour transition period were influenced more greatly by other factors independent of diet or background substrate...
Includes: Supplementary data
Journal Articles
J Exp Biol (2006) 209 (23): 4776–4787.
Published: 1 December 2006
... phase during their evolution, have evolved oil droplets with low pigment densities or no pigmentation or have lost their oil droplets altogether. The density of carotenoid pigments in the cone oil droplets of the chicken retina has been shown to be affected by the intensity of light experienced during...
Journal Articles
J Exp Biol (2006) 209 (12): 2368–2376.
Published: 15 June 2006
... selected traits I review the evolution of colour patterns in birds with a view to assessing the magnitude of plastic responses in their development, and to ask how such responses may have influenced genetic evolution. The common colour pigments in birds are carotenoids and melanins. Both are used in social...
Journal Articles
J Exp Biol (2004) 207 (12): 2095–2099.
Published: 15 May 2004
..., the natural precursor to the primary red carotenoid pigment in house finch plumage. All males grew drab plumage, but males with MG infection grew feathers that were significantly less red (more yellow), less saturated, and less bright than males that were not infected. MG targets upper respiratory and ocular...