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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 ...
Calluses (plantar in right foot and medial in left foot) 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.
Callus is an area of toughened skin. Callus may also refer to: Fibrocartilage callus, the temporary new bony tissue that forms at the ends of a fractured bone; Callus (botany), a fleshy lump of tissue on the labellum (or lip) of orchid flowers; Callus (cell biology), a mass of unorganized cells; Callus (mollusc), a thickened layer of shell material
Switchgrass somatic embryos. Somatic embryogenesis is an artificial process in which a plant or embryo is derived from a single somatic cell. [1] Somatic embryos are formed from plant cells that are not normally involved in the development of embryos, i.e. ordinary plant tissue.
Callus, or dedifferentiated cells, are somatic cells that undergo dedifferentiation to give rise to totipotent embryogenic cells, which temporarily gains the ability to proliferate and/or regenerate an embryo. Since embryogenic cells were considered totipotent cells based on their ability to regenerate or develop into an embryo under given ...
A callosity is a type of callus, a piece of skin that has become thickened as a result of repeated contact and friction. Primates
Foot calluses can be stubborn. We spoke with dermatologists and podiatrists about how to prevent and treat dry skin buildup on your feet. ... “I really like urea, which is a keratolytic, meaning ...
The first study of the corpus with relation to gender was by R. B. Bean, a Philadelphia anatomist, who suggested in 1906 that "exceptional size of the corpus callosum may mean exceptional intellectual activity" and that there were measurable differences between men and women. Perhaps reflecting the political climate of the times, he went on to ...