XANTHOPHYLL Meaning and
Definition
-
Xanthophyll refers to a class of natural pigments that are part of the larger group of carotenoids. These pigments are responsible for the yellow to brownish coloration in various plants, algae, and microorganisms. Xanthophylls are synthesized by these organisms and play crucial roles in several biological processes.
Chemically, xanthophylls are characterized by their structure, consisting of a polyene chain with oxo (carbonyl) groups attached at both ends, and hydroxyl groups positioned on various carbon atoms within the chain. The presence of these functional groups contributes to the yellow color exhibited by xanthophylls.
In plants, xanthophylls serve as accessory pigments in photosynthesis. They help in capturing light energy, which is then transferred to chlorophyll molecules for the synthesis of chemical energy during the process of photosynthesis. Additionally, xanthophylls help protect plant cells from excessive light energy by dissipating excess energy as heat, thus preventing damage caused by potentially harmful reactive oxygen species.
Xanthophylls also have antioxidant properties, which means they can neutralize harmful free radicals and protect cells from oxidative stress. Some xanthophylls, such as lutein and zeaxanthin, are particularly important for maintaining eye health and have been associated with reducing the risk of age-related macular degeneration.
Overall, xanthophylls are vital and versatile pigments found in nature, contributing to various biological functions, from light capture and energy transfer in photosynthesis to antioxidant protection and maintenance of overall health in organisms.
-
A decomposition product of chlorophyll which gives the yellow color to autumn leaves.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for XANTHOPHYLL
- xantophyl
- xanthophyl
- zanthophyll
- canthophyll
- danthophyll
- santhophyll
- xznthophyll
- xsnthophyll
- xwnthophyll
- xqnthophyll
- xabthophyll
- xamthophyll
- xajthophyll
- xahthophyll
- xanrhophyll
- xanfhophyll
- xanghophyll
- xanyhophyll
- xan6hophyll
- xan5hophyll
- xantgophyll
- xanthopyll
- Xanophyll
- Xanthopylle
Etymology of XANTHOPHYLL
The word "xanthophyll" is derived from the Greek words "xanthos" (ξανθός) meaning "yellow" and "phyllon" (φύλλον) meaning "leaf".
The term was coined in the mid-19th century by German botanist Wilhelm Hofmeister to describe the yellow pigments found in leaves. Xanthophylls are a subgroup of carotenoids, which are organic pigments naturally occurring in plants, algae, and some bacteria. Xanthophylls are responsible for the yellow coloration in leaves and contribute to the vibrant colors of flowers and fruits.
Similar spelling words for XANTHOPHYLL
Infographic
Add the infographic to your website:
