Suberin
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Suberin,
solutes
.
Anatomy and physiology
Suberin is highly
littoral
habitat.
Suberin is found in the
netted melon
is composed of suberised cells.
Structure and biosynthesis
Suberin consists of two domains, a
aliphatic monomers include α-hydroxyacids (mainly 18-hydroxyoctadec-9-enoic acid) and α,ω-diacids (mainly octadec-9-ene-1,18-dioic acid). The monomers of the polyaromatics are hydroxycinnamic acids
and derivatives, such as feruloyltyramine.
In addition to the aromatics and aliphatics components, glycerol has been reported a major suberin component in some species. The role of glycerol is proposed to interlink aliphatic monomers, and possibly also to link polyaliphatics to polyaromatics, during suberin polymer assembly. The polymerization step of aromatic monomers has been shown to involve a peroxidase reaction.
The biosynthesis of the aliphatic monomers shares the same upstream reactions with cutin biosynthesis, and the biosynthesis of aromatics shares the same upstream reactions with lignin biosynthesis.
Phlobaphen also occurs in the polyaromatic part of the suberin mixture
.
References
- S2CID 20580637.
- PMID 26579510.
- doi:10.1139/b02-017.
- ISSN 0008-4026.
- S2CID 46497057.