TABLE 2.

BET surface area (m²/g) of wood of transgenic and wild-type (WT) hybrid aspen with and without acid pretreatment.^a,b

Wood samples	Non-pretreated wood	Acid-pretreated wood
11	2.06 ± 0.04***	3.22 ± 0.09
14B	1.91 ± 0.13*	3.29 ± 0.26*
14C	1.75 ± 0.07	3.33 ± 0.08**
Trans	1.91 ± 0.15***	3.28 ± 0.15**
WT	1.72 ± 0.07	2.96 ± 0.02

^aAnalyses were based on samples consisting of pooled wood from four separate trees. Each sample was analyzed as technical triplicates. ^bStatistical significance is based on ANOVA with post hoc Dunnett test for each transgenic line and on contrast for all transgenic lines (Trans) together: ^∗∗∗P ≤ 0.01; ^∗∗P ≤ 0.05; ^∗P ≤ 0.1.