lignification


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Related to lignification: lignin, delignification, lignified

lignification

the formation of wood by the deposition of LIGNIN in both primary and secondary cell walls.

lignification

the laying down of lignin in a plant; the last stage in maturation, representing a heavy loss in nutritional value.
References in periodicals archive ?
Increase in 4-coumaryl alcohol units during lignification in alfalfa (Medicago sativa) alters the extractability and molecular weight of lignin.
The cells of the exodermis are dead in maturity, hexagonal in TS, rectangular in LS, with O-thickened lignification (Fig.
Bamboo stems are supported by extensive lignification (Judziewicz et al.
Cadmium also induces synthesis of secondary metabolites such as phenolics which can bind the heavy metals causes while wall lignification leads to cell death (Wahid et al.
Distribution of lignin monomers and the evolution of lignification among lower plants.
Specific roles of enzimatic browing and lignification in apple diasease resistance.
Some of them differ only in the degree of lignification, and others undergo such phenotypical modifications that they can be (erroneously) recognized taxonomically as different species (SCULTHORPE, 1985).
PAL is also known to be involved in the lignification process and as a key enzyme in phenylpropanoid biosynthetic pathway, which is the gateway to many plant secondary metabolites such as flavonoids pigments, furanocoumarin, isoflavonoid, phytoalexin, wound protectant hydroxycinnamic acid esters and aromatic compound in the plant defense system (Dixon et al.
However, as the crop ripens and the mechanical strength of the fibres increases, a lignification effect occurs, which in time produces coarser fibres which adhere more strongly to each other and to the woody core.
2004) reported that the most abundant proteins (peroxidases, chitinases, and serine proteases) are present in the xylem of many plant species and they function to maintain cell wall metabolism, lignification, and insect-host, and pathogen-host responses.
Xylem tissue also provides structural support for the plant as a result of secondary cell wall formation and lignification (a process which makes the cell wall harder through the deposition of lignin).