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Offlinelacma50
I'm a teapot


Registered: 03/13/09
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UV Mutations
    #10191849 - 04/18/09 07:18 PM (14 years, 11 months ago)

How likely would a mushroom mutated with UV light be to produce a poison or loose the ability to produce psilocybin?

And how would you be able to find out if it did after fruiting it?


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"Any rational person changes their mind when confronted with new evidence."



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OfflineRogerRabbitM
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Re: UV Mutations [Re: lacma50]
    #10192033 - 04/18/09 08:02 PM (14 years, 11 months ago)

Eat it.  I don't think anyone has kept real data on UV light exposure.
RR


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"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
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Offlinelacma50
I'm a teapot


Registered: 03/13/09
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Re: UV Mutations [Re: RogerRabbit]
    #10192070 - 04/18/09 08:10 PM (14 years, 11 months ago)

i didn't grow any like that, i was just wondering if that was a possibility.


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Offlinelacma50
I'm a teapot


Registered: 03/13/09
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Re: UV Mutations [Re: RogerRabbit]
    #10192095 - 04/18/09 08:15 PM (14 years, 11 months ago)

i didn't grow any like that, i was just wondering if that was a possibility.


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"Any rational person changes their mind when confronted with new evidence."



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OfflineABC
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Re: UV Mutations [Re: lacma50]
    #10192305 - 04/18/09 09:21 PM (14 years, 11 months ago)

What is the possibility that a bull exposed to radiation wont grow horns?

It's quite difficult to say. The possibility is quite small, I think...

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Offlinelacma50
I'm a teapot


Registered: 03/13/09
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Re: UV Mutations [Re: ABC]
    #10192486 - 04/18/09 09:56 PM (14 years, 11 months ago)

what about the chance of producing a poisin


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OfflineABC
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Re: UV Mutations [Re: lacma50]
    #10192715 - 04/18/09 11:06 PM (14 years, 11 months ago)

Honestly, I don't know, but here is an educated guess:

The radiation messes up the DNA, then the mushroom has too little or too many of specific enzymes that it needs for certain structures, the mushroom might somehow add or subtract a chemical to one of its molecules so that it becomes toxic to humans..

Or perhaps the mushroom develops a very weak immune system because of this and somehow allows toxic bacteria to grow inside of it

For an organism to randomly develop a toxin would be like a human randomly developing claws on his face, or something. But it is unlikely that such an irradiated organism will grow properly, so i doubt that the mycelium will fruit properly if it has been mutated to that point. But, you never know...

I'll guess the number at 1 in 10 billion chance that something like that would happen. But it could be less, who knows, with all these toxic fungi and all...

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Offlinelacma50
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Re: UV Mutations [Re: ABC]
    #10195283 - 04/19/09 01:20 PM (14 years, 11 months ago)

k thanks a bunch


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Offlinelethargic
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Re: UV Mutations [Re: RogerRabbit]
    #10197000 - 04/19/09 05:53 PM (14 years, 11 months ago)

Man how awesome would it be if It killed him.. lol >.>


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Offlinelibertaire
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Re: UV Mutations [Re: lethargic]
    #10197147 - 04/19/09 06:23 PM (14 years, 11 months ago)

I think the only case this would happen is if you were crossing it with a toxic fungi, why you would be doing that, I don't know.  I seriously doubt that this is even a concern.

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OfflineHorticulture
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Re: UV Mutations [Re: libertaire]
    #10266247 - 04/30/09 10:52 PM (14 years, 10 months ago)

They used an irradiation technique to produce bacteria to break down oil spills.  Due to the sheer number of spores produced by fungi, I would think they would be the next best candidate for inducing potentially beneficial mutations (as spores that mutated in detrimental ways would likely be outcompeted upon inoculation).  Then again, the chances of you getting a specific desired mutation would be astronomically low, especially since they'd all have to be grown to fruition to evaluate any phenotypic changes.  Unless you had a good way to sort what spores could germinate (like bacteria and antibiotic resistance), it'd be a huge crapshoot.  A lot of fun to try though...


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OfflineMagic_Hobo
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Registered: 10/07/08
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Re: UV Mutations [Re: Horticulture]
    #10267273 - 05/01/09 06:07 AM (14 years, 10 months ago)

Yeah, I grew a monotub with a UV light (and two normal 6500K lights) and none of the mushrooms killed me or my friends. There weren't even that many mutants though...

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InvisibleTherian
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Re: UV Mutations [Re: Magic_Hobo]
    #10275265 - 05/02/09 08:53 PM (14 years, 10 months ago)

I think it would be next to impossible to get a poisonous or psychoactive chemical production from UV light exposure.  Usually ultraviolet light causes thiamine dimers to occur. 

This is simply when the thiamine in the DNA bonds with an adjacent thiamine molecule, instead of bonding with its base pair on the opposite sugar phosphate backbone of DNA.

Each gene has a specific sequence of hundreds of thousands of these base pairs to create a specific protein.  For a relatively few dimers to induce a poison which in its self a completely different protein is astronomically low. 

When bacteria have been MADE to consume hydrocarbons such as oil, or even produce insulin or other novel chemicals, it is through genetic manipulation. The genes which express these proteins are artificially inserted into the bacterium's genetic code.

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Offlinenekrogoat
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Re: UV Mutations [Re: Therian]
    #10385108 - 05/23/09 05:13 AM (14 years, 10 months ago)

I read something on this awhile ago,  this has shown to increase vitamin d and they want to market it as a fortified food.


Upon exposure UVa, UVb, or UVc, it breaks down ergosterol into viosterol
Viosterol is then converted by liver and later into ergocalciferol vitamine D2.

Ergosterol is a phytosterole found in fungal cell membrane, found exclusively in fungal cell membranes. It maintains cell membrane permeability and fluidity

I dont remember exactly but I think this was done on both picked and growing agaricus, oysters and shiitake... some browning occurs on the outside of the mushroom and i dont think they tried cubes....

heres some articles on it

Jasinghe V., Oerera P., 2006. Ultraviolet Irradiation: The Generator of Vitamin D2 in Edible Mushrooms. Food Chemistry, 95, 638-643.

Kalaras D., Beelman R., 2008. Vitamin D2 Enrichment In Fresh Mushrooms Using Pulsed UV Light. Penn State University, Department of Food Science.

Feeny M. 2006. Optimizing Vitamin D2 in Mushrooms: Pilot Study to Expose Mushrooms to Ultraviolet Light. BNET. Mushroom News. http://findarticles.com/p/articles/mi_m0ZQQ/is_5_54/ai_n24993039/pg_3?tag=artBody;col1. November 16, 2008


Edited by nekrogoat (05/23/09 05:16 AM)

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Offlinenoggin
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Registered: 02/17/09
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Re: UV Mutations [Re: nekrogoat]
    #10402861 - 05/26/09 04:23 PM (14 years, 10 months ago)

What is the possibility that life can exist as a result of the big bang?

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Offlinechronosync
kicked the habit. shed my skin.

Registered: 01/23/09
Posts: 692
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Re: UV Mutations [Re: noggin]
    #10403259 - 05/26/09 05:35 PM (14 years, 10 months ago)

uhhhh....look in the mirror bro.

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