UKTC Archive

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

Subject: RE: Ganoderma applanatum/australe on n.maple - implications
From: David Evans
Date: Dec 21 2011 18:03:52
<<1). Tony uses my terms and the results of my in situ research on biotrophic 
and/or necrotrophic parasites, which I already have explained on Arbtalk, see 
: 2.>>

Hi Gerrit

1) There's no results of your research at the link.  Have you published this 
research?  Has anyone else come to the same conclusions as you?

2) Your definition of 'biotrophic parasite' - "meaning the parasite dies once 
the host is killed", from the link - doesn't fit with my experience of G. 
adspersum/australe colonies dying once the tree dies, or my understanding of 
the definition.  I understood a biotroph to be something that required living 
tissue to feed off, which is both at odds with my first point, and with G. 
adspersum/australe colonising heartwood or age-altered wood.

3) Has your research established that G. adspersum/australe invades and 
colonises functional living xylem?

<<From my own field research on the effects on the stability and condition of 
different deciduous tree species of the biotrophic parasitic G. australe, of 
which the mycelium causes a white rot with selective delignification, that is 
most detrimental to Acer, Platanus, Populus, Salix, Tilia, Aesculus (Anne 
Frank tree) and Quercus rubra.>>

4) See 1)

5) And, in your first posting on this thread you said G. adspersum/australe 
was fatal to Acer.  Is what you meant, or are you qualifying it by saying it 
is more 'detrimental' to your listed genus above than the genus not listed.


Acer ventura

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