Armillaria investigation

[David Humphries]

Are you familiar with Plant Growth Promoting Rhizobacteria David?

 

Mechanisms and applications of plant growth promoting rhizobacteria: Current perspective

 

Jomoco

 

I have a rudimentary understanding of the science jomoco

 

We're currently involved in an ongoing compost tea foliar and soil drench application study looking at enhancing microbial activity in the rhizosphere of trees stressed by biotic and abiotic factors.

 

The study isn't finished yet so we can't report on conclusions but we have base line soil samples to compare when the studies done.

 

Will start a thread on it later next year.

 

 

Good link, thanks for sharing

 

 

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[jomoco]

I posted because of the phosphate solubility enhancing aspect of PGPR's potential to moderate Armillaria spread.

 

http://bontera.com/Bontera.pdf

 

Jomoco

Edited November 8, 2016 by jomoco

[Arctostaphylos uva-ursi]

Very interesting David.

Can you expand on the differences in the macro features of the two species?

[David Humphries]

Colour and stem are fairly different,

brownish tan hairyish cap and a swollen base with gallica

Yellow/honey more scaly cap and a thinner stem that tapers.

 

The rhizomorphs are larger with gallica.

 

Paul Hamlyn's work is a very useful comparison.

 

Honey Fungus - Friend or Foe?

 

 

 

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[Arctostaphylos uva-ursi]

Yes I am aware of Paul's Document.

I have been told by several authorities that rhizomorph size is unreliable and the other features you mention would also be difficult to distinguish in the field unless you had an example of each side by side.

But I do have a microscope and will have a go at looking at the microscopic features next time. Cheers.

[David Humphries]

Rhizomorphs of unknown Armillaria species under the bark of this dead standing London plane

 

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[David Humphries]

Continuing the Armillaria rhizomorph theme in this thread.

 

various images showing extent of rhizomorphs growth.

 

 

 

 

last image where the host wood volume had completely decayed away to nothing.

 

 

[David Humphries]

A single rhizomorph string strikes out from its host in search of new meat

 

 

 

 

 

[Gary Prentice]

You sure that’s not a triffid?

[David Humphries]

13 minutes ago, Gary Prentice said:

You sure that’s not a triffid?

Got a little concerned when a tongue came out of the end of it and 'licked' my boot cap