The root of happiness
by Andrea Anderegg
Title
The root of happiness
Artist
Andrea Anderegg
Medium
Photograph
Description
In vascular plants, the root is the organ of a plant that typically lies below the surface of the soil. However, this is not always the case, a root can also be aerial (growing above the ground) or aerating (growing up above the ground or especially above water). Furthermore, a stem normally occurring below ground is not exceptional either (see rhizome). So, it is better to define root as a part of a plant body that bears no leaves, and therefore also lacks nodes. There are also important internal structural differences between stems and roots.
The first root that comes from a plant is called the radicle. The four major functions of roots are 1) absorption of water and inorganic nutrients, 2) anchoring of the plant body to the ground, and supporting it, 3) storage of food and nutrients, 4) vegetative reproduction. In response to the concentration of nutrients, roots also synthesise cytokinin, which acts as a signal as to how fast the shoots can grow. Roots often function in storage of food and nutrients. The roots of most vascular plant species enter into symbiosis with certain fungi to form mycorrhizas, and a large range of other organisms including bacteria also closely associate with roots.
Uploaded
March 20th, 2013
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Comments (74)
JOHN TELFER
Andrea, Excellent photo love the great details in the foreground and how you have taken this photo at the perfect angle. Great job at blurring out the background so that the full concentration of the viewer is on the subject in the foreground. Fantastic photo, voted, google and tweet promoted