Ultrastructural changes during wood decay byAntrodiellasp. RK1
✍ Scribed by R. N. Patel; K. K. Rao
- Publisher
- Springer
- Year
- 1993
- Tongue
- English
- Weight
- 685 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1573-0972
No coin nor oath required. For personal study only.
✦ Synopsis
Southern yellow pine (softwood) and maple (hardwood) wood decayed for 12 weeks by Ah-o&elk sp. Ml had average weight losses of 20 and x9%, respectively, and approximately 34 to 35% lignin loss. The ratio of percentage lignin loss to glucose loss was 3.6 and 2.7 for softwood and hardwood, respectively.
There was negligible loss of other wood sugars such as xylose, arabinose, galactose and mannose. Scanning electron microscopy revealed the presence of erosion troughs and bore holes in decayed samples of both softwood and hardwood. Secondary walls were void of lignin, middle lamella and cell corners were extensively decayed. Ca'+ crystals were abundantly present in the areas of decay. Transmission electron micrographs revealed the presence of hyphal sheath and growth of hyphae directly through the cell corners.