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2. Callus (cell biology) - Wikipedia

   en.wikipedia.org/wiki/Callus_(cell_biology)

   Plant callus (plural calluses or calli) is a growing mass of unorganized plant parenchyma cells. In living plants, callus cells are those cells that cover a plant wound. In biological research and biotechnology callus formation is induced from plant tissue samples (explants) after surface sterilization and plating onto tissue culture medium in vitro (in a closed culture vessel such as a Petri ...

3. Micropropagation - Wikipedia

   en.wikipedia.org/wiki/Micropropagation

   A callus is mass of undifferentiated parenchymatous cells. When a living plant tissue is placed in an artificial growing medium with other conditions favorable, callus is formed. The growth of callus varies with the homogenous levels of auxin and cytokinin and can be manipulated by endogenous supply of these growth regulators in the culture medium.

4. Callus - Wikipedia

   en.wikipedia.org/wiki/Callus

   A callus (pl.: calluses) is an area of thickened and sometimes hardened skin that forms as a response to repeated friction, pressure, or other irritation. Since repeated contact is required, calluses are most often found on the feet and hands, but they may occur anywhere on the skin.

5. How to Grow and Care for an African Milk Tree Indoors - AOL

   www.aol.com/lifestyle/grow-care-african-milk...

   When the callus has formed, place the bottom of the branch or arm about an inch into the soil of a pot. ... As those new side branches grow, repeat the process on them to promote new growth.

6. Somatic embryogenesis - Wikipedia

   en.wikipedia.org/wiki/Somatic_embryogenesis

   The ratio of different plant growth regulators required to induce callus or embryo formation varies with the type of plant. [2] Somatic embryos are mainly produced in vitro and for laboratory purposes, using either solid or liquid nutrient media which contain plant growth regulators (PGR’s).

7. Plant tissue culture - Wikipedia

   en.wikipedia.org/wiki/Plant_tissue_culture

   A balance of both auxin and cytokinin will often produce an unorganised growth of cells, or callus, but the morphology of the outgrowth will depend on the plant species as well as the medium composition. As cultures grow, pieces are typically sliced off and subcultured onto new media to allow for growth or to alter the morphology of the culture.