cork cambium

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cork cambium

a specific CAMBIUM that contributes towards the production of bark.
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Cells of peripherical region in the callus and in all injured secondary phloem differentiated into healing phellogen continuous with the phellogen of existing original periderm.
In addition, some woody stems develop a phellogen or cork cambium that gives rise to bark.
Cork is an inert material formed by the accumulation (a thickness of 0.08 inches or 2 mm a year) of the suberized cellulose membranes of the protective cortical tissue formed by the phellogen (or cork cambium), which is responsible for secondary growth, not the epidermis.
Ontogeny of periderm and phellogen activity in Ceratonia siliqua L.
the vascular cambium and the phellogen (cork cambium) is a common feature of the gymnosperms and dicotyledons.
These meristems are initially formed in an exogenous position but are transferred to an endogenous position by the activity of a localized phellogen [6,5] and are consequently not abscised when widespread bark formation occurs [6,7].
periderm: Protective tissue that replaces epidermis when it is sloughed off during secondary growth; includes cork, cork cambium (phellogen), and phelloderm.
This involves accelerated phellogen activity, elongation of cork cells, dissolution of cell walls, and cell proliferation.