Figure 3

PCA of aspen samples before and after treatment with xylanase and laccase mixtures. PCA scores (A, C) and loadings (B, D) comparing STXM clusters from middle lamellae (ML) and cell walls (CW) for different xylanase:laccase co-treatments. PCA models compare all samples and all cell regions (A, B), and only enzyme-treated cell wall layers (both S1/S3 and S2) (C, D). Outlines on scores plots are to guide the eye.