Figure 7.3 The normally rigid wood cell wall structure of aspen wood (A) was modified by 3-week treatment with Phanerochaete chrysosporium (B) (Sachs et. al.. 1989) .Modifications included cell will swelling (a). cnzymatic softening or relaxing, resulting in partial collapse of cell structure (b), localized areas of wall thinning (c). and fragmentatlon (d).
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