Dictionary > Xanthophyll

Xanthophyll

Definition
noun, plural: xanthophylls
A type of carotenoid in which its molecular structure contains oxygen
Supplement
Accessory pigments are non-chlorophyll pigments within the chloroplasts of photoautotrophs. They help in absorbing other light energy essential during the light reactions of photosynthesis. There are two major types of accessory pigments in plants and they are carotenoids and phycobilins. Carotenoids are accessory pigments that are typically yellow, red and orange. They are insoluble in water in contrast to phycobilins that are water-soluble. They occur in chloroplasts where they aid in the light absorption for photosynthesis. They are also found in chromoplasts. There are various carotenoids and they are grouped into xanthophylls and carotenes.
Xanthophylls are carotenoids that occur widely in nature. They are yellow pigments; thus, this accounts for their name, ‘xanthophyll’, which is derived from Greek xanthos– (yellow) and ”phyllon (leaf). Xanthophylls are found in young as well as in etiolated leaves. They are also found in papaya, peaches, prunes, etc.1 Examples of xanthophylls are lutein, zeaxanthin, neoxanthin, violaxanthin, flavoxanthin, and α- and β-cryptoxanthin.
Synonym(s):

  • phylloxanthin

See also:

  • carotene
  • carotenoid
  • accessory pigment
  • chlorophyll
  • photosynthesis
  • Zeaxanthin
  • Cryptoxanthin
  • Luteol
  • Zeaxanthol
  • Reference(s):

    1 ‘Xanthophyll.” Retrieved from ://en.wikipedia.org/wiki/Xanthophyll.


    You will also like...

    Kidneys
    Kidneys and Regulation of Water and Inorganic Ions

    The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..

    DNA - schematic
    Genetic Mutations

    This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..

    Sensory systems
    Sensory Systems

    A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..

    An artist depiction of a Precambrian multicellular life form.
    The Evolution of Cell Organelles

    The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..

    Human perception in action
    Human Perception – Neurology

    This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..

    genes controlling growth and development
    Control of Growth & Development

    Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

    Related Articles...

    No related articles found

    See all Related Topics