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Ultrastructural aspects of wheat straw degradation by Phanerochaete chrysosporium and Trametes versicolor
- Source :
- Applied Microbiology and Biotechnology. 43:766-770
- Publication Year :
- 1995
- Publisher :
- Springer Science and Business Media LLC, 1995.
-
Abstract
- The ultrastructural patterns characterizing wheat straw degradation by the ligninolytic fungi Phanerochaete chrysosporium and Trametes versicolor were studied. During fungal attack, the less lignified tissues were degraded first, whereas the xylematic and sclerenchymatic fibers underwent a delayed attack. In straw samples degraded by T. versicolor, partial delignification, defibrillation and swelling of cell walls, often causing separation between primary and secondary walls, were observed. By contrast, the formation of erosions and fissures, with minor lignin removal, characterized the attack to the cell wall by P. chrysosporium. At an advanced stage of decay, KMnO4 staining demonstrated abundant electron-dense material around hyphae and in the proximity of the cell-wall surface. In the case of P. chrysosporium, spherical black bodies were found in the erosions and fissures produced during fungal attack.
- Subjects :
- 0303 health sciences
Hypha
biology
030306 microbiology
General Medicine
Straw
biology.organism_classification
Applied Microbiology and Biotechnology
Cell wall
03 medical and health sciences
chemistry.chemical_compound
chemistry
Botany
Ultrastructure
Phanerochaete
Lignin
030304 developmental biology
Biotechnology
Trametes versicolor
Chrysosporium
Subjects
Details
- ISSN :
- 14320614 and 01757598
- Volume :
- 43
- Database :
- OpenAIRE
- Journal :
- Applied Microbiology and Biotechnology
- Accession number :
- edsair.doi...........aaf7dd9769cbc419f16f40f04261ac41
- Full Text :
- https://doi.org/10.1007/bf00164786