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OfflinePsilosopherr
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How does mycelium effect the ph of its substrate? Long term scerotia consolidation
    #22359198 - 10/10/15 01:26 PM (8 years, 3 months ago)

I saw somebody on here claim that mycelium will gradually lower (or raise, don't remember anymore) the ph of its substrate. Now with a little google searching I find this quote: "Fungi can selectively raise or lower soil pH, increasing the usability of existing soils without the need for additional adjustment prior to use."

This info is hard to find so far. All I can find is what ph is best for growing mushrooms. Does someone know how mycelium effects the ph of its substrate over time??? :goodluck:

I'm interested in this because I don't want my old sclerotia jars to slowly become more susceptible to contams due to the ph changing. My proposed solution is a dunk in water treated with hydrated lime after about 6 months on the shelf. Or perhaps mixing in crushed oyster shells as a buffer.

I'm just assuming that aged jars become more susceptible to contams over time?

edit:posted a little too soon. now i found this quote:

"The hydrogen environment of fungi is difficult to study because fungi change the pH as they grow. Some species increase and others decrease pH of their medium. pH of the medium is important for it influences mineral availability, enzyme activity and membrane function. Generally speaking, fungi can tolerate a wide range of pH, though most media used to culture fungi are acidic."

so now I suppose I'll search by species and hope


Edited by Psilosopherr (10/10/15 01:30 PM)


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OfflineKizzle
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Re: How does mycelium effect the ph of its substrate? Long term scerotia consolidation [Re: Psilosopherr]
    #22359857 - 10/10/15 04:28 PM (8 years, 3 months ago)

It lowers it and by doing so it controls the microflora around it and makes digestion of the substrate easier. The enzymes produced require acidic conditions to be most effective.

As far as I know substrates become less vulnerable to contamination over time as nutrients become less available to competing organisms. Spent mushroom substrate has even been treated and used a casing material.


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OfflinePsilosopherr
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Registered: 02/15/12
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Re: How does mycelium effect the ph of its substrate? Long term scerotia consolidation [Re: Kizzle]
    #22360572 - 10/10/15 08:05 PM (8 years, 3 months ago)

interesting..thanks a lot for the input! This seems to be a tough question to answer


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