UKTC Archive

RE: Ganoderma applanatum/australe on n.maple - implications

Subject: RE: Ganoderma applanatum/australe on n.maple - implications
From: Viper Snake
Date: Dec 29 2011 15:45:50

 
Hi David,
 
Not evidence on a microscopical level in a living tree (yet), but assuming G. 
australe can, because of its (partially sterile) panic fruiting just before 
or shortly after the tree dies and not being able to produce (completely) 
fertile brackets from dead wood alone.

1) You're 'reading' the fruiting bodies, extrapolating from this, and making 
assumptions as to invasive ability of G. adspersum/australe to breach 
reaction zones ?
 
1) With the limitations of in situ observations of the "body language" of the 
brackets not being reproducable under controlled conditions on dead wood and 
without competition by other wood degrading macrofungi or reactions from 
living tissues of the tree in the in vitro laborotory situation : yes.
 
2) Do you have any opinions about the vitality of the tree and the 
functionality of the xylem when you think reaction zones are being breached, 
or does this not matter?
 
2) As I said before, an invasion of living tissues of the tree by hyphae of 
G. australe does not seem to affect the vitality or condition of the tree nor 
of its foliage, so the only outside signs of increasing instability of the 
tree, because of the white rot with selective delignification of the heart 
wood by the mycelium, are to be derived from the presence and "body language" 
of the brackets.
 
3) Do you apply the same principles to boundary zones ?
 
3) With the restrictions given under 1) : yes.
 
Best wishes for 2012.
Gerrit
                                          


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