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Fraggin
Multi-Faceted



Registered: 01/05/05
Posts: 8,707
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Re: Aluminum Contamination of Mushrooms? [Re: Jabbawaya]
#11630778 - 12/11/09 02:59 PM (14 years, 1 month ago) |
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Thanks... Glad to hear some more input on it.
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Sillicybin
Registered: 02/14/05
Posts: 2,134
Loc:
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Quote:
stalk_of_fennel said: not quit it but i remembered reading this on wikipedia about Boletus edulis
Not sure about everyone else, but I found the article that was cited by the paragraph you quoted very interesting: http://www.mycologia.org/cgi/content/abstract/99/2/161
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Jabbawaya

Registered: 07/10/05
Posts: 1,479
Last seen: 10 years, 2 months
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Re: Aluminum Contamination of Mushrooms? [Re: Sillicybin]
#11631079 - 12/11/09 03:47 PM (14 years, 1 month ago) |
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So they propose that Boletus mushrooms are sequestering metals such as Cd using phytochelatins, possibly as a defense mechanism? That's a new way of looking at it. Plants do this too, but I wonder why.
If the metals are affecting the cell's redox state, then glutatione would probably be oxidized -- which I think they observed -- and clean up the free electrons. That is, it would seem that the metal isn't good for the mushroom. But damn, that's a lot of speculation on my part.
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Edited by Jabbawaya (12/11/09 03:53 PM)
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navyseals101
Stranger



Registered: 09/16/04
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Re: Aluminum Contamination of Mushrooms? [Re: RogerRabbit]
#12567246 - 05/15/10 12:48 PM (13 years, 8 months ago) |
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Quote:
RogerRabbit said: For quite some time now, I've advised against the use of aluminum trays for cultivation of mushrooms due to the fact that certain species of mycelium produce metabolites that actually dissolve holes into the trays, usually prior to first flush.
However, as far as I could research, nobody had ever sent off a mushroom to a lab for testing after growing from an aluminum tray. Below is a tray that was used to hold a shiitake substrate. When the project fruited, I sent a mushroom to the lab for analysis. The results are next to the picture of the tray below. It appears that the aluminum content of the mushroom was very low, so apparently the metal is not conducted into the fruits.
There are other reasons not to use aluminum trays, such as the increased risk of bottom pinning due to the air exchange down there once the holes are created. It also reflects light down the sides of the tray. However, it does not appear that the aluminum is transferred to the fruit, even though the metabolites dissolve it. RR
why would it transfer to the fruit?
or why doesnt it? I was wondering the same thing too.
I wonder which metabolites make it what aluminum compound
-------------------- "Ten thousand flowers in spring the moon in autumn, a cool breeze in summer, snow in winter. If your mind isn't clouded by unnecessary things, this is the best season of your life." -wumen
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Jitsu
JKD Love



Registered: 11/12/08
Posts: 1,073
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Re: Aluminum Contamination of Mushrooms? [Re: navyseals101]
#12567517 - 05/15/10 02:05 PM (13 years, 8 months ago) |
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I'm finally glad to know it was the metabolites that were producing holes in my aluminum trays.

-------------------- Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there. How I get my Pinsets The Capabilities Of A Shotgun FC
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bw86
Doesn't play well with others


Registered: 11/12/06
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Re: Aluminum Contamination of Mushrooms? [Re: Jitsu]
#12567651 - 05/15/10 02:46 PM (13 years, 8 months ago) |
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since this was bumped from the depths im curious to know how much the lab test cost ?
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invitro


Registered: 05/03/13
Posts: 2,529
Last seen: 1 month, 20 days
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Re: Aluminum Contamination of Mushrooms? [Re: bmoctta]
#19688837 - 03/12/14 11:23 PM (9 years, 10 months ago) |
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If your sub is acidic, near 4.5 ph(see http://www.seachem.jp/support/AluminumSolubilityToxicity.pdf for more info), aluminum becomes water soluble and binds to phosphorous making it biologically unavailable to plants and possibly shrooms(not sure). Phosphorous being very important to shrooms, I'd think you would want to avoid it, and avoid composting with the spent cakes. I've seen what naturally occurring aluminum heavy mineral rocks does to soil, it makes it almost lifeless. Vermiculite has a lot of Aluminum odixe by the way.
Here is one article stating Aluminum binds to P http://www.noble.org/ag/soils/phosphorusbehavior/ "Below pH 5.5, aluminum (Al3+) is abundant and will react more readily with the phosphates. Calcium phosphates are relatively more water-soluble than aluminum phosphates. The lack of water solubility of aluminum phosphates means that these compounds are not readily available for plant use. In other words, in strongly acid soils, most of the P is bound and not released. This means the warehouse is locked and no P can get out."
Also according to Hulda Clarke, a biological researcher and author in the book "The cure for all diseases", the bad forms of chromium build up in the prostate and the body has no natural way to exude them.
My own opinion: if you accumulate chromium your prostate might enlarge.
If your prostate enlarges it will put pressure on your bladder, causing you to wake up and pee in the middle of the night for the rest of your life, sometimes 3x per night. Doesn't sound like fun does it, I know someone with an enlarged prostate who has to deal with this reality.
Edited by invitro (03/13/14 01:40 AM)
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PussyFart
Retired Cultivation Extrodinaire



Registered: 04/08/12
Posts: 22,502
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Re: Aluminum Contamination of Mushrooms? [Re: invitro]
#19689027 - 03/13/14 12:17 AM (9 years, 10 months ago) |
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This thread is 6 years old, and the person you are replying to has not loggen on in 4 years, 10 months......nice
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invitro


Registered: 05/03/13
Posts: 2,529
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Re: Aluminum Contamination of Mushrooms? [Re: PussyFart]
#19689041 - 03/13/14 12:23 AM (9 years, 10 months ago) |
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It ok to bump an old thread in this case because the material is relevant to the health of the general public.
I wasn't responding to that particular person but to the audience in general.
Edited by invitro (03/13/14 01:35 AM)
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