The Ganoderma thread!

[Fungus]

... applanatum ... the necrotrophic nature of these brackets ... australe ... it is neither but in fact the necrotrophic G. pfeifferi being also beech specific, rarely on oak.

 

Tony,

Bit of a problem though, the perennial G. pfeifferi also is biotrophic parasitic .

[Tony Croft aka hamadryad]

Tony,

Bit of a problem though, the perennial G. pfeifferi also is biotrophic parasitic .

 

mmmm, so why does it panic when its getting shut down by compartmentalisation? my field observations suggest it will fruit happy on a fallen tree for a number of years unlike australe which fails pretty soon after the tree?

 

But then i cant be 100% cos i havent a scope so its all speculation anyways for now, though some brackets are A typical and easy to distinguish.

 

though in all fairness epping forest does present more cases that would suggest as you say i am wrong.

[Fungus]

so why does it panic when its getting shut down by compartmentalisation?

 

Tony,

The answer is given in the question : "when it's getting shut down", not after it has been shut down.

[Tony Croft aka hamadryad]

Tony,

The answer is given in the question : "when it's getting shut down", not after it has been shut down.

 

not sure i fully understand Gerrit?

[Fungus]

not sure i fully understand

 

Getting shut down meaning the mycelium still is in contact with living tissue while (panic) fruiting from dead wood, which is a characteristic of biotrophic parasitic Ganoderma's.

Having been shut down meaning fruiting from dead wood, which is a characteristic of necrotrophic parasitic Ganoderma's.

[Tom Joye]

Tom,

Yes I can, as long as it has not been microscopically identified by the size of the spores. With fungi, there's always an exception to the rules we make up for them . F.i. : G. australe is documented to be (rather poorly) decaying dead wood in vitro (Schwartze) and recently one has succeeded in having the biotrophic parasitic Grifola frondosa fruiting from dead oak wood.

 

Gerrit,

usually you're more determined

But I understand your point. Would you agree if I rephrase it as 'there's a big chance this is ...' or 'there are clues pointing in the direction of ...'

 

I think (IMO of course) that you suspect Applanatum because of the necrotrphic nature of these brackets, but your guts say australe for the form, this is all good and correct gut instinct, the reason your being pulled either way is because it is neither but in fact the necrotrophic G. pfeifferi:thumbup1: being also beech specific, rarely on oak.

 

Hama,

I actually never considered pfeiferi, so I went looking for some older pictures of the same tree (found out it was already felled 2.5 years ago instead of 1.5, time flies). The older fruiting bodies on the stem base actually ressemble pfeiferi very much. It's impossible for me to check this now, but when I get near this tree, will try to check.

 

As you can see in the pictures, there was no longer a ring of sound wood, the tree was only standing on separate reaction wood root flares. When this was discovered (these trees are unfortunately not really under strict VTA-control), only days before a major event in this park, the tree was felled. As you can see, it even failed before the saw got through.

[Fungus]

1. Would you agree if I rephrase it as 'there's a big chance this is ...' or 'there are clues pointing in the direction of ...'

2. The older fruiting bodies on the stem base actually ressemble pfeifferi very much. It's impossible for me to check this now, but when I get near this tree, will try to check.

 

Tom,

1. Yes, in this case one mostly refers to the fungus as Ganoderma cf. lipsiense or as Ganoderma lipsiense s.l. (including G. australe).

2. Nice documentation . Will you microscopically check the spore size too and also perform the "striking a match near the yellow sub-surface layer" test ?

Edited October 27, 2011 by Fungus

[Tom Joye]

Tom,

. Will you microscopically check the spore size too and also perform the "striking a match near the yellow sub-surface layer" test ?

 

I promise I will!

[Tony Croft aka hamadryad]

I am not entirely convinced about the biotrophism of G.peifferi, not convinced at all.

 

and ive just remembered the group of pfeifferi I need!

[RobArb]

few different shots of these two gano's both on different dead cherry stumps (stumps had resprouted so not fully dead)

 

Unsure whether they are two separate gano's or whether they are the same, i know a spore check under microscope would define but my scope don't go that far:lol:

 

Anyway its not really important as they were only stumps but i just thought i'd document:biggrin:

 

For the record i would say there are G. australe