Lignifisertevev
Lignifisertevev refers to plant tissue in which cells have lignified their walls by deposition of lignin, a complex aromatic polymer. Lignification strengthens support, increases mechanical stiffness, and makes cell walls more resistant to decay and water penetration. It is common in vascular plants, particularly in xylem elements such as tracheids and vessel elements and in sclerenchyma fibers, and is a hallmark of most woody tissues. In contrast, many parenchyma and other primary tissues remain non-lignified or only lightly lignified.
Biochemically, lignin is produced through the phenylpropanoid pathway. Monomers—p-coumaryl, coniferyl and sinapyl alcohols—are transported to developing
Development and location: Lignification typically occurs as part of secondary cell wall formation after cell elongation.
Functions and significance: Lignified tissue provides mechanical support for standing plants and serves as a rigid
Detection: In histology, lignin is commonly detected with stains such as phloroglucinol-HCl, which yields a red