22.12.2012 Views

6 Wood Discoloration

6 Wood Discoloration

6 Wood Discoloration

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

5.2 Bacteria 115<br />

Fig.5.3. Bacterial wood decay. a First photo (1944 by J. Liese) of wood cell walls degraded by<br />

bacteria showing destroyed pine wood tracheids within a foundation pile (from Liese 1950).<br />

b Degradation of a pine sapwood tracheid cell wall during 3 months of ponding in a lake<br />

(TEM, from Schmidt et al. 1987). c Degradation of a tracheid cell wall in the laboratory<br />

by Aureobacterium luteolum (TEM, from Schmidt et al. 1995). B bacterium, E erosion,<br />

S secondary wall, MP middle lamella/primary walls, R cell wall residues<br />

www.taq.ir

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!