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InvisibleSHiZNO
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Registered: 03/14/03
Posts: 1,467
brown on stems AGAIN!
    #2336564 - 02/15/04 06:15 AM (12 years, 9 months ago)

my friends latest grow has brown at the base of the stems...theyre sorta like spots that appear on some shrooms...he scaped that layer of mycelium off and its clean/white mycelium underneath...

i dont know wtf is happening with them....he scraped them off and is drying them but he doesnt want to die from this crap...ive looked thru the contam faq here and search mycotopia but cant find ANYTHING on it.

oh and his camera sucks so he cant take good pics :frown:


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Offlinescotsman1
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Re: brown on stems AGAIN! [Re: SHiZNO]
    #2336603 - 02/15/04 07:51 AM (12 years, 9 months ago)

I'd bet it's nothing and it wouldn't
put me off taking them, just some
natural growth, sure its not spores
dropping onto the stems.


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OfflineSuntzu
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Re: brown on stems AGAIN! [Re: SHiZNO]
    #2337039 - 02/15/04 01:18 PM (12 years, 9 months ago)

Brown spots on caps/stems can be a Pseudomonas infection. If it is only on the surface and doesn't appear to penetrate very deeply, there isn't much to be worried about. The species that cause this are A) Non-pathogenic, and B) Don't live after being dried.
The caveat: If the brown spots become extensive, there can be secondary bacterial infections. . .these are more of a crap shoot [though still likely not harmful]. They usually are accompanied by bad smells, blackening, a look of putridity [nice word!] and are usually not consumed for that reason.
I've eaten many a fruit that had slight "bacterial blotch". There is ALWAYS the potential for someone to have a specific allergy, but in general it is not something to be worried about if it's occuring to a small degree.


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OfflineSuntzu
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Re: brown on stems AGAIN! [Re: Suntzu]
    #2337067 - 02/15/04 01:30 PM (12 years, 9 months ago)



Here are some slight bacterial blotch cases. . .Granted, it's a very slight infection.  IME, seeing it on stems is not as common as seeing it on the caps.  Another possibility is a non-infective cause of the browning.  People have reported such things, it appears to happen sometimes in very high rH environments.
BTW, that pic was from a long time ago;  Just for personal interest I cultured one of the brown spots. . .I made an emulsion of it and struck it out for isolation on agar.  The result was Pseudomonas :laugh:

Of course, without a pic it's hard to be definitive, but I'd say you're fine.


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InvisibleSHiZNO
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Re: brown on stems AGAIN! [Re: Suntzu]
    #2337883 - 02/15/04 05:10 PM (12 years, 9 months ago)

it doesnt look like that...its more so just small brown spots....the smell isnt POTENT, i asked someone what they smelt like and they said "mushrooms" ...it doesnt smell like roses...but it also doesnt smell like anything really sick

anyway i ate a small abort with the brown dots last night (14 hours ago) and im ok so far..


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OfflineMAIA
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Re: brown on stems AGAIN! [Re: SHiZNO]
    #2348759 - 02/18/04 05:29 AM (12 years, 9 months ago)

I agree with Suntzu. Nothing to worry about IMHO.
Keep coding .....

MAIA


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InvisibleJoshua
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Re: brown on stems AGAIN! [Re: SHiZNO]
    #2349337 - 02/18/04 11:12 AM (12 years, 9 months ago)

Read through this thread regarding verticillium:

http://www.shroomery.org/forums/showflat...t=1#Post1279218

Joshua


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OfflineSuntzu
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Re: brown on stems AGAIN! [Re: Joshua]
    #2352733 - 02/19/04 12:40 AM (12 years, 9 months ago)

Thanks Joshua, I didn't even think about Verticillium.  I believe it's in the same category of concern as Pseudomonas. . .if it's not too bad, it's not too bad :wink:

I don't know enough to say, but I wonder if it's safe to say that brown spots/streaks on stems are more likely Verticillium, and spots on caps are more likely Pseudomonas. . .The Verticillium infection pics I've seen manifested gnarled, bent, fuzzy, and otherwise f'd up fruitbodies.


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InvisibleSHiZNO
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Re: brown on stems AGAIN! [Re: Suntzu]
    #2354354 - 02/19/04 12:50 PM (12 years, 9 months ago)

the shrooms themself arent mutants tho...they just had those spots on them... which had white mycelium underneath if scraped off the thin layer with a knife...


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