suberin

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suberin

(so͞o′bər-ĭn)
n.
A waxy waterproof substance present in the cell walls of certain plant tissues, especially cork.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

suberin

a complex of fatty substances present in the wall of cork tissue that waterproofs it and makes it resistant to decay.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
Faint Casparian bands are first visible on the uniseriate exodermis radial walls, and a lignified, very small-celled, inner hypodermal sclerenchyma layer (SC) and protoxylem poles appear at 10 mm (Figure 1(b)).

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