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OfflineNibin
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Re: Keeping the Mycelium Alive [Re: veda_sticks]
    #7575660 - 10/30/07 08:05 AM (16 years, 3 months ago)

It doesn't absorb them like plants do through roots.
Saprophytic (or decomposer) fungi like cubes first secretes enzymes onto the foodsource and breaks down complex nutrients into less complec ones it can then absorb by fagocytosis.

So while dunking a cake in nutrients will add nutrients to that cake (as many as stay inside the cake) the dissolved nutrients are not readily absorbed by the fungus as they have not been broken down by the fungi.

Also, nutrients that dissolve in water are mainly simple molecules which are of little use to the mycelia as they require complex nutrients.

Imagine nutrients as lego building blocks. Plants feed on single blocks and build whatever structures they need. The rest of us, including fungi feed on fully built structures of blocks and take them apart and join them together again to make shapes that are useful for us.

Adding liquid nutrients would be equivalent to adding water with single lego blocks to the substrate which the mycelia can't use.

And as RR said, adding any kind of complex nutrients to a substrate is asking for contaminations.

For further reading:

http://en.wikipedia.org/wiki/Fungi#Nutrition_and_possible_autotrophy_in_fungi

http://en.wikipedia.org/wiki/Decomposer


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OfflineRogerRabbitM
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Re: Keeping the Mycelium Alive [Re: orchidfanatic]
    #7575663 - 10/30/07 08:06 AM (16 years, 3 months ago)

It's been done many times over the years by growers with the exact same rational. It's also failed every time. How would you put a spent cake with lots of contaminant spores all over it into fresh brf? That would be the same as not sterilizing the substrate.

You can spawn spent cakes into a manure pile in the yard, but that's not the same thing.
RR


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Offlinebuggas
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Re: Keeping the Mycelium Alive [Re: orchidfanatic]
    #7577408 - 10/30/07 03:57 PM (16 years, 3 months ago)

Assuming you could add some more solid food in a sterile environment, would that do it? Just hypothetically for the sake of conversation


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