Incrustationsembedded in between cellulose fibres like lignin ->lignification, especially (not only) in wood or tannins ->resistance against microorganisms, especially (not only) in bark
Akkrustspiled onto the cellulose layer like cutin ->inside the cuticle (skin layer), waterproof waxes -> in/on cuticle, waterproof or suberin (also as incrustation) ->in cork, waterproof
Lignin= highly complex and variable biopolymer Lignin-incrustation is called lignification of the cell wall -lignin fills the space between cellulose fibres -strengthens the cell wall, makes it rather water-impermeable ...
Tannins-simple to build -soluble in water (can therefor be extracted from plants) -for defence, mostly in dermal skin tissue and fruits -formerly also used to tan leather -in food tannins react antimicrobial ...
Akkrusts like cutin, suberin or waxes-differently linked fatty acids, hydrophobic -waxes are crystalline -main function: avoid unnecesarry water loss, which was essential for the evolution of higher plants on land -blueish layer on fruits ...
