Assertion: lignin | /r/HasProperty | linked to hemicellulose
Facets:
value: covalently
type: MANNER
value: via a cell wall protein
type: MANNER
Source sentences:
text: Lignin is cross-linked to hemicellulose via a cell wall protein called extensin.
text: It is covalently linked to hemicellulose and thereby cross-linked with different plant polysaccharides.