Investigation of on-site biodegradation of thinned cedar wood by cedar-rot fungi, and influence of fungal-induced wood rot on shiitake-mushroom bed logs

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  • MORI Toshio
    Department of agro-environmental Sciences, Faculty of Agriculture, Kyushu University
  • KAWAZOE Hiroyuki
    Department of agro-environmental Sciences, Faculty of Agriculture, Kyushu University
  • TSUTSUMI Yuji
    Department of agro-environmental Sciences, Faculty of Agriculture, Kyushu University
  • KONDO Ryuichiro
    Department of agro-environmental Sciences, Faculty of Agriculture, Kyushu University

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Other Title
  • スギ分解担子菌によるスギ間伐材の林内腐処理およびシイタケほだ木への影響調査
  • スギ ブンカイ タンシキン ニ ヨル スギ カンバツザイ ノ ハヤシ ナイフショリ オヨビ シイタケ ホダギ エ ノ エイキョウ チョウサ

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The aim of this study was to establish a method for the bioremediation of forest dilapidation caused by the practice of leaving thinned woods and windfall trees in planted cedar forests. Specifically, the on-site degradation of wood logs by two species of wood-rot fungi was examined. The decay of cedar wood logs in a cedar forest was largely promoted by the inoculation of logs with Gloeophyllum trabeum or Trametes versicolor, which were selected due to their high degradation activity toward cedar wood flour and their universal distribution in nature. In addition, we confirmed that shiitake bed logs located next to rotting trees were not infected by G. trabeum. Our results suggest that the on-site biodegradation of thinned wood using these fungal strains will only have a small influence on the environment, and will promote the effective bioremediation of dilapidated forests.

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