Lignification


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Related to Lignification: lignin, delignification, lignified
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Lignification

 

in plants, a change in the cell walls caused by lignin, which fills the interstices between the microfibrillae of cellulose. Lignification begins with the middle lamella (the primary membranes of two neighboring cells with an interlayer of intercellular matter) and then spreads to the secondary wall. As a result of lignification, the wall becomes hard and resistant to microorganisms and fungi but loses its elasticity. Lignification of cell walls is characteristic of all higher plants except mosses. The mechanical strength of wood and sclerenchyma, which consist of lignified cells, depends on the volume and distribution of the cells in the plant organs.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
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Boron has a critical role in cell wall formation, stabilization, lignification and xylem differentiation.