Meaning of Chromoplasts

What are Chromoplasts:

Chromoplasts are plastids or mature plastids of the plant cell that store secondary photosynthetic pigments and nutrient reserves.


Chromoplasts are characterized by containing the pigments that give flowers and plant fruits their colors. yellow, orange, red or purplewhose function is the application of a resource to attract animals and insects to disperse their seeds.

Chromoplasts have no shape, internal organization, or defined structure. In terms of shape they can be elongated, lobed or spheroidal. In relation to its internal organization, all its elements, such as ribosomes and pigments, swim freely through the stroma. Finally, its structure is defined only by an inner membrane, an outer membrane, and stromules (tubes filled with stroma).

Chromoplasts originate from any other type of plastids. For example, when chloroplasts lose chlorophyll in the fall, the reddish-orange color of the leaves is due to their transformation into chromoplasts.

The pigments that chromoplasts accumulate are of 2 types:

  • Hydrogenated carotenoid pigments (C40h56): such as ß-carotene, which gives carrots their orange color, and lycopene, which gives tomatoes their red color.
  • Oxygenated carotenoid pigments (C40h55EITHERtwo): as the xanthophyll that gives the yellow color to corn grains.

See more about: Pigment.

chromoplasts and chloroplasts

Chromoplasts and chloroplasts are mature plastids or plastids found in plant cells.

Chromoplasts are responsible for the red, yellow and violet pigmentation of flowers and fruits while chloroplasts are responsible for photosynthesis by containing chlorophyll which, in turn, gives the green color to the leaves.

You may be interested:  Astrophysics

See also Chloroplasts.