Table II.

The amounts of borate cross-linked RG-II in the cell walls of bryophytes, lycophytes, pteridophytes, dicotyledenous and non-graminaceous monocots, and the gramineae

The amounts of RG-II in the non-flowering plant walls were determined by SEC/ICP-MS analyses of the material solubilized from bryophytes, lycophytes, and pteridophytes by Driselase.

Plant Group Average Amount of Borate Cross-Linked RG-II Range of the Amount of Borate Cross-Linked RG-II
mg g−1 dry wt cell wall ± sd mg g−1 dry wt cell wall
Bryophytes 0.1 ± 0.06 0.04-0.25
n = 13a
Lycophytes 7.4 ± 6.2 2.0-19.1
n = 7
Pteridophytes 9.3 ± 4.9 1.9-19.9
n = 12
Dicotyledons and non-graminaceous monocotyledonsb 22.8 ± 8.5 5.0-36.0
n = 18
Gramineaec 3.8 ± 1.0 3.0-5.0
n = 4
  • an, Number of different plant species analyzed. bAmounts calculated from Matoh et al. (1996). cAmounts calculated from Matoh et al. (1996) and Kaneko et al. (1997).