0 a substance that gives something a particular colour when it is present in it or is added to it:
1 a natural substance that produces color in animals and plants, such as of skin, hair, and leaves
Spectral tuning of pigments underlying red-green color vision.
Spectral tuning in salamander visual pigments studied with dihydroretinal chromophores.
Two approaches have been implemented to generate spectral extinction functions for cone pigments.
Thus, the question is not why hypopigmented animals have elevated thresholds compared to pigmented animals, but rather, what causes their reduction in rhodopsin expression?
The supernatant was filtered in the presence of polyvinyl polypyrrolidone and activated carbon to eliminate pigments and polyphenols.
Photosynthetic light-harvesting pigment-protein complexes : toward understanding how and why.
Photoreceptors recover from pigment adaptation after replacement 11-cis retinal, supplied by pigment epithelial cells, regenerate the visual pigment, and quench opsin's activity.
The apparent ordering of pigment layers was observed wherever figures overlapped.
