Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Microscopic Patterns of Decay caused by Tyromyces palustris and Gloeophyllum trabeum in Korean Red Pine and Radiata Pine Woods

  • Kim, Hwa Sung (Department of Forest Products, College of Forest Science, Kookmin University) ;
  • Eom, Young Geun (Department of Forest Products, College of Forest Science, Kookmin University)
  • Received : 2005.08.10
  • Accepted : 2006.04.06
  • Published : 2006.09.25
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Abstract

The objective of this study was to elucidate the microscopic patterns of decay caused by brown-rot fungi of Tyromyces palustri and Gloeophyllum trabeum in Korean red pine (Pinus densiflora) and radiata pine (Pinus radiata) woods through light and electron microscopies. The ultrastructural changes of cell walls attacked by the two brown-rot fungi were compared in this respect. Macroscopically, radiata pine showed more ring and radial checks than Korean red pine. Microscopically, with the progress of decay, spiral checks associated with cross-field pits and bore holes in the cell wall were more remarkably numerous in the radiata pine than in the Korean red pine. In the radiata pine, G. trabeum produced more spiral checks in the cell wall than T. palustris. In the advanced stages of decay by G. trabeum, the erosions of ray cell walls were identified both in the Korean red pine and radiata pine but $S_3$ layers of tracheid walls were eroded only in the Korean red pine.

Keywords

Acknowledgement

Supported by : Agricultural Research & Development Promotion Center (ARPC) in Korea

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