Autumns Light #1
by Darren Fisher
Title
Autumns Light #1
Artist
Darren Fisher
Medium
Photograph - Photography/ Digital Art
Description
A beautiful Fall day out in the woods when the leaves are all a glow and the light rays are showing us the way. The warm colors and tones will lighten up any room in your home, office or waiting room. I have used textures and effects to give the image a painterly look.
A green leaf is green because of the presence of a pigment known as chlorophyll, which is inside an organelle called a chloroplast. When they are abundant in the leaf's cells, as they are during the growing season, the chlorophylls' green color dominates and masks out the colors of any other pigments that may be present in the leaf. Thus the leaves of summer are characteristically green. Chlorophyll has a vital function: that of capturing solar rays and utilizing the resulting energy in the manufacture of the plant's food�simple sugars which are produced from water and carbon dioxide. These sugars are the basis of the plant's nourishment�the sole source of the carbohydrates needed for growth and development. In their food-manufacturing process, the chlorophylls themselves break down and thus are being continually "used up". During the growing season, however, the plant replenishes the chlorophyll so that the supply remains high and the leaves stay green.
In late summer, as daylight hours shorten and temperatures cool, the veins that carry fluids into and out of the leaf are gradually closed off as a layer of special cork cells forms at the base of each leaf. As this cork layer develops, water and mineral intake into the leaf is reduced, slowly at first, and then more rapidly. It is during this time that the chlorophyll begins to decrease.
Often the veins will still be green after the tissues between them have almost completely changed color.
Uploaded
October 1st, 2014
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