Suberin is a lipophilic macromolecule found in specialized plant cell walls, wherever insulation or protection toward the surroundings is needed. Suberized cells form the periderm, the tissue that envelops secondary stems as part of the bark, and develop as the sealing tissue after wounding or leaf abscission.

Where is suberin present in plants?

Suberin is found in the phellem layer of the periderm (or cork). This is outermost layer of the bark. The cells in this layer are dead and abundant in suberin, preventing water loss from the tissues below. Suberin can also be found in various other plant structures.

What is suberin Class 9?

Suberin is a wax like fatty substance. Suberin is highly hydrophobic and it prevents water from penetrating the tissue. Suberin is found in the cell walls of cork cells. It makes these cells impervious to gases and water.