Pterin and carotenoid pigments are located throughout the tissue of the dewlap, creating yellow and red hues. (wikipedia.org)
Structural3
Researchers have discovered that some fossils can retain evidence of skin color from multiple pigments and structural colors, aiding research into the evolution and function of color. (sciencedaily.com)
In biological (and biomimetic ) uses, colours produced other than with pigments or dyes are called structural colouration . (wikipedia.org)
[12] Structural coloration has been understood in general terms since Robert Hooke 's 1665 book Micrographia , where Hooke correctly noted that since the iridescence of a peacock 's feather was lost when it was plunged into water, but reappeared when it was returned to the air, pigments could not be responsible. (wikipedia.org)
Biological1
Morehouse, NI, Vukusic, P & Rutowski, R 2007, ' Pterin pigment granules are responsible for both broadband light scattering and wavelength selective absorption in the wing scales of pierid butterflies ', Proceedings of the Royal Society B: Biological Sciences , vol. 274, no. 1608, pp. 359-366. (elsevierpure.com)
Absorb4
According to studies, these ultraviolet reflecting wing scales found in males also contain pterin pigments that absorb wavelengths below 550 nm. (inaturalist.org)
Plants use many pigments to absorb and react to light. (hydroharbor.com)
Cryptochromes absorb light in the blue spectrum specifically at 380nm and 450nm (pterin, flavin). (hydroharbor.com)
For example, one way some species may adapt to climate change is by producing less dark pigment (black) so that they absorb less heat from the sun to avoid overheating in really warm climates. (pierisproject.org)
Melanin2
So far, scientists filling the ancient-Earth coloring book with pigment have been limited to browns, blacks, and muddy reds when melanin lasts as organic material. (sciencedaily.com)
In one autopsy case, the only neuropathologic finding was a decrease in melanin-pigmented neurons in the pars compacta of the substantia nigra. (medscape.com)
Zollinger, H. (1987) Color Chemistry: Syntheses, Properties, and Applications of Organic Dyes and Pigments. (photochemcad.com)
Deficiency1
Yellow koi are caused by a deficiency of the pigment pterin, which is found in the liver and other tissues. (goldkoifish.com)
Butterflies2
Cabbage white butterflies have pigments (pterins) in their wings that give them their white color. (pierisproject.org)
We want to know whether this increase in nitrogen is actually changing the color (amount of pterin) of Pieris rapae butterflies. (pierisproject.org)
Decrease1
Although this may seem paradoxical, the pterin pigments have been found decrease the amount of diffuse ultraviolet reflectance that comes from the wing scales. (inaturalist.org)
Scales2
We also find that pterin granules increase light reflection from single wing scales, such that wing scales containing denser granule arrays reflect more light than those with less dense granule collections. (elsevierpure.com)
As male wing scales contain more pterin granules than those of females, the sexual dichromatism found in many pierid species can be explained by differences in wing scale pterin deposition. (elsevierpure.com)
Iridescence2
The fossilized snakeskin maintained the unique shapes of different types of pigment cells, which would have created yellows, greens, blacks, browns, and iridescence while the animal was alive. (sciencedaily.com)
[8] Some types of flower petals can also generate a diffraction grating, but the iridescence is not visible to humans and flower-visiting insects as the diffraction signal is masked by the colouration due to plant pigments . (wikipedia.org)
Color2
The color of these pigments alternate in response to the absorption of light. (hydroharbor.com)
The complementary color of absorbed light is the actual color of the plant pigment(s). (hydroharbor.com)
Found1
This pigment is one of the most nitrogen-rich compounds found in the animal kingdom, but nitrogen is often hard to come by for many organisms. (pierisproject.org)
Responsible1
In addition, the presence of the pterin pigments increases the signal's chromaticity and potential signal content, suggesting that these pigments are responsible for amplifying the contrast between ultraviolet reflectance and background colors as a male's wings move during flight. (inaturalist.org)
Gene1
These pigments mediate phototropism, circadian rhythms and gene expression. (hydroharbor.com)
Species1
Additionally, the colour pattern elements produced by these pterins are known to be important during mating interactions in a number of pierid species. (elsevierpure.com)
Presence1
The positive effect of chaga in malignant tumors is due to the presence of pterins in it. (voltkom.ru)
Skin2
Her team discovered the mineralized skin cells when viewing the fossil under a high-powered scanning electron microscope and then matched the shapes up with pigment cells in modern snakes to determine what colors they might have produced. (sciencedaily.com)
The pigments in the dorsal skin of frogs. (wikigenes.org)
Blue1
The metal-free blue phycobilin pigment in a conjugated chromoprotein of blue-green algae. (harvard.edu)
Cell1
The pigments themselves are now decayed, but with the cell shapes--specific to each kind of pigment--mineralized, there's enough information to reconstruct their colors. (sciencedaily.com)
Applications1
Industrially, molybdenum compounds (about 14% of world production of the element) are used in high-pressure and high-temperature applications as pigments and catalysts . (knowpia.com)
Light2
Phototropins are pigments that allow plants to respond to light by affecting the curvature of growth, the triggering of stomatal(pores) opening or developmental changes. (hydroharbor.com)
Pigments as complements to absorbed light. (hydroharbor.com)
Carotenoid pigments2
Steffen, JE & McGraw, K 2007, ' Contributions of pterin and carotenoid pigments to dewlap coloration in two anole species ', Comparative Biochemistry and Physiology - B Biochemistry and Molecular Biology , vol. 146, no. 1, pp. 42-46. (elsevierpure.com)
Pterin and carotenoid pigments are located throughout the tissue of the dewlap, creating yellow and red hues. (wikipedia.org)
Colors2
These patterns indicate that both carotenoid and pterin pigments are responsible for producing color in the dichromatic dewlaps of these two species, and that in these two species the two pigments interact differently to produce the observed colors. (elsevierpure.com)
B.D. Wilts, B. Wijnen, H.L. Leertouwer, U. Steiner, D.G. Stavenga, 'Extreme refractive index wing scale beads containing dense pterin pigments cause the bright colors of pierid butterflies', Adv. Opt. (embd.be)
Dewlap1
We studied the carotenoid and pterin content of red and yellow dewlap regions in two neotropical anole species-the brown anole (Norops sagrei) and the ground anole (N. humilis). (elsevierpure.com)
Unique1
The pigment is unique in the Genus Aethia , and its spectra did not match any known molecule. (nih.gov)
Classes1
We found that studies with lower ascertainment bias identified higher proportions of cis-regulatory mutations, and that cis-regulatory mutations were more common amongst animals harbouring a higher number of pigment cell classes. (bvsalud.org)
Similar1
A naturally occurring lipid pigment with histochemical characteristics similar to ceroid. (nih.gov)