Iron-reducing capacity of low-molecular-weight compounds produced in wood by fungi
In: Holzforschung, Jg. 60 (2006), Heft 6, S. 630-636
Online
academicJournal
- print, 28 ref
Zugriff:
Birch and pine wood specimens were colonized by individual isolates of 12 brown-rot, 26 white-rot, six soft-rot and four blue (sap)-stain fungi. Homogenized wood was subsequently extracted in 75% ethyl acetate and centrifuged. The filtered extracts were analyzed for their iron-reducing capabilities using a ferrozine-based assay. Agar fungal cultures were also examined directly using a spot test for iron reduction. Extracts from wood colonized by brown-rot fungi showed significantly greater iron-reducing capability than extracts from wood colonized by white-rot or non-decay fungi. Results of the spot test ratings were highly variable, but in general the greatest color responses were associated with the brown-rot cultures. The ability of brown-rot fungi to produce compounds and/or modify the wood components that reduce iron is of relevance to the chelator-mediated Fenton mechanism that has been advanced as a theory for the non-enzymatic degradation of wood by brown-rot fungi.
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Iron-reducing capacity of low-molecular-weight compounds produced in wood by fungi
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Autor/in / Beteiligte Person: | GOODELL, Barry ; DANIEL, Geoffrey ; JELLISON, Jody ; YUHUI, QIAN |
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Zeitschrift: | Holzforschung, Jg. 60 (2006), Heft 6, S. 630-636 |
Veröffentlichung: | Berlin; New York, NY: de Gruyter, 2006 |
Medientyp: | academicJournal |
Umfang: | print, 28 ref |
ISSN: | 0018-3830 (print) |
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