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The influence of chemical factors on the selectivity of Pinus resinosa stumps for Fomes annosus
Author(s) -
Hubbes M.,
Lin JuiYung C.
Publication year - 1980
Publication title -
european journal of forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 0300-1237
DOI - 10.1111/j.1439-0329.1980.tb00001.x
Subject(s) - fomes , chloroform , selectivity , biology , botany , pinus <genus> , phenols , woody plant , penetration (warfare) , chemistry , chromatography , biochemistry , operations research , engineering , catalysis
Compounds such as resins or phenols produced by the host in response to wounding or fungal penetration may play an important role as factors of resistance against Fomes annosus . By extracting stem sections, that were kept for different intervals in a closed chamber, with different organic solvents chloroform produced the most inhibitory extractives against F. annosus . This may explain at least partially the decreasing stump selectivity for F. annosus . Three compounds were isolated from the neutral fractions of chloroform extractives from 24 days wounded wood discs which were found to be different from the compounds in normal and 12 days fractions. Spectrophotometric analyses reveal some characteristics of these isolated compounds, whereas their chemical formula and structure need further investigation.