Assessment of 30 White Rot Basidiomycetes for Selective Lignin Degradation

Lewis Otjen, Robert Blanchette

Research output: Contribution to journalArticlepeer-review

123 Scopus citations

Abstract

Thirty wood-inhabiting basidiomycetes were screened for their ability to selectively delignify wood, The amount of lignin and carbohydrates removed and the mo hological and ultrastructural characteristics of the decayed wood were the major criteria used to determine fungi with superior lignin-degrading ability. Phellinus pini-2, Pholiota mutabilis, Phlebia brevispora-l and Phanerochaete chrysosporium were the best delignifiers of both birch and pine. Different isolates of the same species of fungi differed in both the type of decay caused and their selectivity for lignin. Almost all fungi tested caused greater weight losses in birch blocks than in pine blocks. Most fungi isolated from gymnosperms caused greater weight losses in pine than did isolates from angiosperms. The fungi studied produced two different types ofselective delignification. The first type resulted in extensive lignin removal from localized areas within wood blocks. The second type resulted in a more uniform loss throughout wood blocks, but less extensive loss from individual cell walls.

Original languageEnglish (US)
Pages (from-to)343-349
Number of pages7
JournalHolzforschung
Volume41
Issue number6
DOIs
StatePublished - Jan 1 1987

Keywords

  • Cellulose
  • Eastern White Pine (Pinus strobus L.)
  • Lignin Biodegradation
  • Microscopy
  • Paper Birch (Betula papyrifera Marsh)
  • Scanning Electron Microscopy
  • Selective Delignification
  • Simultaneous Rot
  • Transmission Electron
  • White Rot

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