Table II. Enzyme activity in the apoplast of the tobacco cells at 5 d after onset of culture

Data represent means ± sd of three independent experiments. n.d., Not detected.

FractionTobacco Cellsα-Xylosidaseβ-Glucosidaseβ-XylosidasePAPProtein
10−3 units per flaskμg per flask
WallWild type73.9 ± 4.7123 ± 11.7n.d.0.8 ± 0.156
Transgenic8.5 ± 1.382 ± 5.1n.d.16.5 ± 1.955
MediumWild type39.9 ± 6.341 ± 3.829.9 ± 1.9n.d.48
Transgenic4.8 ± 0.58 ± 0.79.2 ± 1.0n.d.43