Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
권호 표지

Micromorphological Characteristics of Frost Rings in the Secondary Xylem of Pinus radiata

  • Lee, Kwang Ho (Dept. of Forest Products & Technology, Chonnam National University) ;
  • Kim, Jong Sik (Dept. of Forest Products & Technology, Chonnam National University) ;
  • Singh, Adya P. (Ensis) ;
  • Kim, Yoon Soo (Dept. of Forest Products & Technology, Chonnam National University)
  • Received : 2006.07.13
  • Accepted : 2006.09.25
  • Published : 2007.03.25
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Abstract

Frost ring formed in the secondary xylem of Pinus radiata was examined using various microscopic techniques. Cell walls in a frost ring were poorly developed, lacking in the proportion of wall components. Formation of secondary cell wall was imperfect and thickness of secondary wall was varied. Cytochemical examinations provided the evidence that the synthesis of structural polysaccharides and lignin was inhibited, resulting in the malformation of secondary cell walls. Judging by the highly irregular nature of the cell wall, it appears that cellulosic/hemicellulosic framework was affected and the template for lignification by frost.

Keywords

References

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