TABLE 3.

Enzymes with activities in biosynthesis of the different cell wall components.

Cell wall component	Species	Enzymes∗	References
Cellulose	Z. marina	12 CESA; 4 CSLG	Olsen et al. (2016)
Xylans	Z. marina	9 GH3; 3 GH10; 1 GH51; 39 GT8; 10 GT14; 36 GT47; 13 GT61; 1 CE6	Olsen et al. (2016)
Mannans	Z. marina	6 CSLA; 3 CSLD; 4 GT5_7	Olsen et al. (2016)
Xyloglucans	Z. marina	3 CSLC; GH16; 5 GT34; 2 GT37	Olsen et al. (2016)
	Zostera	Xyloglucan endotransglucosylase/hydrolase 5	Lee et al. (2018)
Mixed-linked glucans	Z. marina	absent	Olsen et al. (2016)
Pectins	Z. marina	39 GT8; 36 GT47; 56 GH28; 16 PL1; 63 CE8	Olsen et al. (2016)
Sulfated polysaccharides	Z. marina	to be further investigated	Olsen et al. (2016)
Callose	Z. marina	19 CBM43; 40 GH17; 10 GT48;	Olsen et al. (2016)
	Zostera	Glucan synthase-like 8	Lee et al. (2018)
Wall (glyco-)proteins	Z. marina	4 DUF579; 14 GT14; 25 GT31; 4 GT61; 13 GT77	Pfeifer et al. (2020)
Lignin	Z. marina	not investigated

^∗Activities were used as stated in the respective reference.