Table 1.

Cellulose ¹³C chemical shifts (ppm) of various plant primary cell walls. Weak signals are labeled as (w) and unresolved signals are underlined. Brachypodium, Arabidopsis and Zea Mays primary cell walls are measured in this study. Cladophora, tunicate ^{7, 8} and Arabidopsis secondary wall ⁶⁶ cellulose chemical shifts are literature values.

Arabidopsis primary wall cellulose
Type	C1	C2	C3	C4	C5	C6
type a	105.8	71.6	74.4	89.0	72.6	65.0
type b	104.8	72.6	75.4	88.8	72.6	65.5/65.1
type c	104.1	71.8	75.2	88.1	71.2	65.9
type d	105.2	72.5	74.8	87.0	72.5	64.7
type e (w)	105.0	71.2/72.2	74.6	89.9	71.2/72.2	65.3
type f	105.1	72.5	75.3/74.1	84.5	75.3	62.5
type g	104.9	72.9	75.3	83.5	75.3	61.5
Brachypodium primary wall cellulose
Type	C1	C2	C3	C4	C5	C6
type a	105.8	71.8	74.4	89.1	72.6	64.9
type b	105.0	72.6	75.6	89.0	72.6	65.0/65.3
type c	104.1	71.8	75.2	88.1	71.1	65.9
type d	105.3	72.6	75.2/74.4	87.5/87.0	72.6	64.8/64.1(w)
type e (w)	104.8	ND	ND	90.0	ND	65.4
type f	105.1	72.9	75.4	84.5	75.4	62.4
type g	105.0	72.6	75.3	83.7	75.3	61.6
Zea Mays primary wall cellulose
Type	C1	C2	C3	C4	C5	C6
type a	105.8	71.7	75.7	89.0	72.7	65.0
type b	105.0	72.7	75.7/74.0(w)	89.0	72.7	65.3/65.5(w)
type c	104.1	71.2	ND	88.0	71.2	66.0
type d	105.4	72.8	75.2/75.0/74.5	87.9/87.2	72.6	64.9
type e (w)	105.4	72.0	ND	90.1	72.0	65.4
type f	105.2/106.1	72.7	75.7	84.4/84.9	75.7	62.7/63.0
type g	105.2	74.2/73.1	74.2/73.1	83.6	75.5	61.6
type h	105.4/106.1	73.2	74.7/74.9(w)	85.4	74.7	63.8
Cladophora & tunicate cellulose 7, 8
Type	C1	C2	C3	C4	C5	C6
Iα A	105.0	70.1	73.9	89.1	72.6	65.2
Iα A’	105.0	71.6	74.7	90.0	70.1	65.2
Iβ B	106.1	71.3	74.9	88.0	70.6	65.6
Iβ B’	104.0	71.0	74.2	88.9	72.2	65.0
Arabidopsis secondary-wall cellulose 66
Type	C1	C2	C3	C4	C5	C6
Domain 1	105.2	72.4	74.5	88.9	72.7	65.0
	104.1	72.1	74.8	88.1	71.3	65.7
Domain 2	105.2	72.4	74.5	84.2	75.5	62.7