Suberin
biopolymer
Suberin is a waxy, waterproof substance that is found in plants. It is described as having a 'rubbery' material. Suberin blocks the movement of water and solutes. It is in the walls of cork cells. Suberin is named after the cork oak, Quercus suber.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/85/Deposition-of-suberin-lamellae-in-endodermis-of-two-rice-genotypes-roots.jpg/220px-Deposition-of-suberin-lamellae-in-endodermis-of-two-rice-genotypes-roots.jpg)
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