Definition of xanthophyll in English:
xanthophyll
noun ˈzanθə(ʊ)fɪlˈzænθəˌfɪl
mass nounBiochemistry A yellow or brown carotenoid plant pigment which causes the autumn colours of leaves.
Example sentencesExamples
- Concentrations of total carotenoids and total xanthophyll were greater for plants grown at low temperature.
- These are chlorophyll's shy cousins, the yellow pigment xanthophyll and the red-orange carotene.
- Retinal xanthophyll is a carotenoid, chemically related to vitamin A, whose absorption spectrum peaks at about 460 nm and ranges from 480 nm down to 390 nm.
- Remove both chlorophyll and the yellow pigment xanthophyll and the variegation is white.
- There is now an extensive literature based on in vivo and in vitro studies that deal with mechanistic aspects of xanthophyll pigment-dependent photoprotection.
Origin
Mid 19th century: from Greek xanthos 'yellow' + phullon 'leaf'.
Definition of xanthophyll in US English:
xanthophyll
nounˈzænθəˌfɪlˈzanTHəˌfil
Biochemistry A yellow or brown carotenoid plant pigment which causes the autumn colors of leaves.
Example sentencesExamples
- These are chlorophyll's shy cousins, the yellow pigment xanthophyll and the red-orange carotene.
- Retinal xanthophyll is a carotenoid, chemically related to vitamin A, whose absorption spectrum peaks at about 460 nm and ranges from 480 nm down to 390 nm.
- Concentrations of total carotenoids and total xanthophyll were greater for plants grown at low temperature.
- Remove both chlorophyll and the yellow pigment xanthophyll and the variegation is white.
- There is now an extensive literature based on in vivo and in vitro studies that deal with mechanistic aspects of xanthophyll pigment-dependent photoprotection.
Origin
Mid 19th century: from Greek xanthos ‘yellow’ + phullon ‘leaf’.