Chemical factors affecting the brown-rot decay resistance of Scots pine heartwood

A. Harju (Corresponding Author), M. Venäläinen, S. Anttonen, Hannu Viitanen, P. Kainulainen, P. Saranpää, E. Vapaavuori

Research output: Contribution to journalArticleScientificpeer-review

72 Citations (Scopus)


The cell wall chemistry (amount of hemicellulose, α-cellulose, and total lignin) and the concentration of extractives (total acetone-soluble extractives, resin acids, pinosylvins and the total phenolics quantified as tannin acid equivalents) were studied in brown-rot resistant and susceptible juvenile heartwood of Scots pine (Pinus sylvestris L.). The study material consisted of a total of 18 trees from two 34-year-old progeny trials at Korpilahti and Kerimäki. The trees were selected from among 783 trees whose decay rate had previously been screened in a laboratory test using a brown-rot fungus, Coniophora puteana. Samples from neither location showed any significant difference in the concentration (mg/cm3) of hemicellulose, α-cellulose and total lignin between the decay resistant and susceptible trees. At both locations only the concentration of total phenolics was higher in the decay-resistant heartwood than in the decay-susceptible heartwood. At Korpilahti, the amount of acetone-soluble extractives and the concentration of pinosylvin and its derivatives were higher in the resistant than in the susceptible trees.
Original languageEnglish
Pages (from-to)263-268
Issue number3
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed


  • Pinus sylvestris L.
  • Coniophora puteana
  • Heartwood durability
  • Cell wall sonstituents
  • Extractives


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