FT-IR imaging microscopy to localise and characterise simultaneous and selective white-rot decay within spruce wood cells

被引：81

作者：

Fackler, Karin ^{[1
]}

Stevanic, Jasna S. ^{[2
]}

Ters, Thomas ^{[1
]}

Hinterstoisser, Barbara ^{[3
]}

Schwanninger, Manfred ^{[4
]}

Salmen, Lennart ^{[2
]}

机构：

[1] Vienna Univ Technol, Inst Chem Engn, A-1060 Vienna, Austria

[2] Innventia AB, Stockholm, Sweden

[3] BOKU Univ Nat Resources & Life Sci, Dept Mat Sci & Proc Engn, Inst Wood Sci & Technol, Vienna, Austria

[4] BOKU Univ Nat Resources & Life Sci, Dept Chem, Vienna, Austria

来源：

HOLZFORSCHUNG | 2011年 / 65卷 / 03期

基金：

奥地利科学基金会;

关键词：

Ceriporiopsis subvermispora; FT-IR imaging microscopy; multivariate image analysis; Trametes versicolor; white-rot; wood degradation; LIGNIN-DEGRADING FUNGUS; CERIPORIC-ACID-B; BEECH WOOD; BROWN-ROT; SPECTROSCOPY; SUBVERMISPORA; CELLULOSE; PINE; COMBINATION; WALL;

D O I：

10.1515/HF.2011.048

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Spruce wood that had been degraded by white-rot fungi (Trametes versicolor or Ceriporiopsis subvermispora) and suffered mass losses up to 17% was investigated by transmission Fourier transform infrared (FT-IR) imaging microscopy. A significant marker during incipient simultaneous white-rot (T. versicolor) was the cleavage of glycosidic bonds of polysaccharides that preceded their metabolisation. Simultaneous white-rot processes were also characterised by a relative decrease of the overall lignin content and a relative accumulation of wood polysaccharides. No early marker was found for selective white-rot (C. subvermispora) that removes mainly lignin by an oxidative process. This feature was detected only in wood samples exhibiting mass losses higher than 12%. Furthermore, it was shown, that simultaneous and selective white-rot processes were unevenly distributed within the wood samples but quite evenly distributed within single tracheids.

引用

页码：411 / 420

页数：10

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