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The common bottle cork is a product of:

Option: 1

Dermatogen


Option: 2

Phellogen


Option: 3

Periderm


Option: 4

Plerome


Answers (1)

best_answer
 

 

  • Periderm develops through the activity of cork cambium or phellogen.
  • Cork cambium or phellogen is the secondary meristem that develops generally from the collenchymatous cells of hypodermis, sometimes from the cells of the epidermis (apple), pericycle (Cimatis), phloem (vitis).
  • Phellogen gives rise to cork or phellem on the outer side and secondary cortex of phelloderm on the inner side.
  • Phellem or cork is the dead tissue with suberised cell walls. It is impermeable to water and is used commercially. 
  • Quercus suber is commercial cork.
  • Secondary cortex or phelloderm is living tissue. It stores food and replaces the damaged primary cortex. 
  • Phellem, phellogen and phelloderm are called periderm.
  • Periderm and fragments of epidermis form the protective tissues in an old dicot stem.

phellogen given rise to phellem which is used as commercial cork.

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Gunjita

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