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That depends on which color you're asking about. The green color present in plants is actually the result of photosynthesis. It is chlorophyll produced by chloroplasts under the right conditions (i.e. light, temperature, nutrients.) The two main pigments present in leaves are the yellow(xanthophyll) and orange (carotene). Throughout the green season those pigments are always there. However the production of chlorophyll "drowns" them out. Once the days start to get shorter (less light) and the temperature drops (45 degrees), then the onset of the plant's dormancy will occur. There will be a lower rate of photosynthesis allowing the pigments to show through on the leaves.
The red and purple colors that are present in the fall occur under special circumstances. Not only does the plant have to be genetically predisposed to produce anthocyanin (the name of the red/purple pigment), but there must also be special conditions to enable the production of this pigment. First, there must be a large sugar build-up within the leaf. This is caused by lots of warm, sunny days at the begginning of the fall season that are then followed by crisp cool nights (40-45 degrees.) The low temperature at night leads to low levels of respiration causing the abscission layer to form at the node where the leaf connects to a stem. So the following day, when you have more warmth and sun, the leaf will continue to produce sugar. However, there will now be the formation of the abscission layer causing the flow of sugar out of the leaf to be minimized. This in turn results in the large sugar pool mentioned previously. And this large sugar pool enables the leaf to produce the pigment anthocyanin leading to beautiful fall colors. Hope that helps. Sorry if it was TMI.
What else can I help you with?
What is a green pigment found in the chloroplasts of plants called?
They are called the chlorophyll pigments. They are essential for photosynthesis
What are found only in plants that contain pigments and food?
chloroplasts
Are all pigments found in plants involved in photosynthesis?
No. All pigments found in plants are not involved in photosynthesis. In fact, the greatest variety of colored pigments are found in flower pedals and are used to attract pollinators among other things.
What are stocks of thylakoids found in chloroplast called?
They are called granna. They contain photosynthetic pigments
What are carotenoids and phycocyanins called?
Carotenoids are organic pigments found in plants that give fruits and vegetables their red, orange, and yellow colors. Phycocyanins are blue pigment proteins found in blue-green algae like spirulina.
What happens when light strikes green light pigments?
The green pigment found in photosynthetic plants is called chlorophyll; it is responsible for converting sunlight.
What are the main pigments found in plants?
The majority of coloured pigments that are found within in plants are contained chloroplasts found inside the outer cells of the leaves and stems of the plants. The most common of these is Chlorophyll. Other groups of pigments are responsible for the color of flowers and the "autumn colors" associated with many deciduous plant leaves. See related questions below.
Besides chlorophyll what other pigments are found in chloroplasts?
Other pigments found in chloroplasts include carotenoids (such as beta-carotene and xanthophylls) and anthocyanins. These pigments help in capturing different wavelengths of light for photosynthesis and also provide protection against oxidative damage.
What is anthoxanthins?
An anthoxanthin is any of a group of water-soluble flavinoid pigments found in plants.
What is an anthoxanthin?
An anthoxanthin is any of a group of water-soluble flavinoid pigments found in plants.
What are the kinds of chloropyll and other pigments?
The main types of chlorophyll in plants are chlorophyll a and chlorophyll b. Other pigments found in plants include carotenoids (such as beta-carotene), anthocyanins, and xanthophylls. These pigments play various roles in photosynthesis and light absorption.
How leaves produce their food which are not green?
In plants there are structure called pigments that determine their color. so the food produced by plants that is not green has non green pigments expressed. for example, the color of tomato is red since red pigments are expressed.
