What is phellogen, Biology

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What is phellogen? What is its function?

Phellogen, also called as cork cambium, is the meristematic plant tissue responsible for the formation of the periderm (the covering of the stem, roots and shoots). The inner side of the phellogen layer produces the phelloderm and its outer side forms the cork (suber). The suber secretes suberin, an impermeable substance that impregnates the tissue.

 


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