xanthophores造句

• The yellow xanthophores arrange along the spine and on top of the limbs.
• The third type is the xanthophores which contains yellow pigments in the forms of carotenoids.
• Each color is indicated by the three types of chromatophore cells : erythrophores, melanophores, and xanthophores.
• The three types of pigment chromatophores in salamanders include yellow xanthophores, black melanophores, and silvery iridiophores ( or guanophores ).
• Most chromatophores can generate pteridines from guanosine triphosphate, but xanthophores appear to have supplemental biochemical pathways enabling them to accumulate yellow pigment.
• Albinism results in the reduction of melanin production only, though the melanocyte ( or xanthophores, albinos are not entirely white, but instead display a pale yellow colour.
• It is known in zebrafish embryos, for example, that by 3 days after fertilization each of the cell classes found in the adult fish melanophores, xanthophores and iridophores are already present.
• The bright yellow eyes of the great horned owl are thought to be due to the presence of the pteridine pigment xanthopterin within certain chromatophores ( called xanthophores ) located in the iris stroma.
• As with xanthophores and erythrophores, in fish the distinction between iridophores and leucophores is not always obvious, but, in general, iridophores are considered to generate iridescent or metallic colours, whereas leucophores produce reflective white hues.
• The color spectrum is a result of three layers of pigment cells or chromatophores : the xanthophores, responsible for the yellow pigmentation; cyanophores, responsible for the blue pigmentation, and melanophores, responsible for the brown and black pigmentation when the background is other than green and the anole changes color to camouflage itself.
• Three types of chromatophores are commonly found in amphibians : Xanthophores, which contain yellow, orange, or red pigments and are found uppermost on the dermis; iridophores, which lie below the xanthophores and function by reflecting and scattering white light up through them ( in the case of " Pseudacris regilla " and many other North American frogs, iridophores reflect blue light through the yellow pigment cells above to create a green frog ) and melanophores, which are the deepest pigment cells and are responsible for the presence of black and brown pigments.
• Three types of chromatophores are commonly found in amphibians : Xanthophores, which contain yellow, orange, or red pigments and are found uppermost on the dermis; iridophores, which lie below the xanthophores and function by reflecting and scattering white light up through them ( in the case of " Pseudacris regilla " and many other North American frogs, iridophores reflect blue light through the yellow pigment cells above to create a green frog ) and melanophores, which are the deepest pigment cells and are responsible for the presence of black and brown pigments.