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OfflineKrissKross
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Registered: 08/25/04
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The other White mold?
    #7486553 - 10/04/07 09:25 PM (16 years, 3 months ago)

Is there a white mold other than cobweb mold? I know cobweb mold is kinda grey and is easily differentiated from mycelium in later stages of growth. What I want to know Is wether there is some other sort of white molds that could contaminate brf cakes (the contamination would have been invitro i believe). My friend has 4 cakes that he dunk and rolled. Something, either mycelium or white mold has grown to surround much if not most of the vermiculite covering the cakes. The growth appears solid, thick and is bright white. In the valleys of the growth there is fuzz that almost looks grey but he cant tell if thats just a lighting effect (the growth in valleys is less thick and is shaded) He scraped at the growth with a knife and much of the tissue was scraped aways as if it where only a thin coccoon, revealing the smooth solid surface of the cake underneath, which had slight resemblance to wet BRF. He pressed his finger against a different part of the cake and it felt sponge like and a finger print could be seen imprinted in the fungus. The growth does not rise far off the cakes and has not grown into a large grey mass after at least 48 hours since it first began growing.

The reason I ask this is that I know white molds exist other than cobweb molds but I have never read a definitive explanation of whether other such molds could possibly contaminate a mushroom substrate. What I do know is that if there is a mold growing on that cake, it is growing througout the entire cake(or entire sections at least)


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OfflineThe_Shr00m_Man
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Re: The other White mold? [Re: KrissKross]
    #7486932 - 10/04/07 11:46 PM (16 years, 3 months ago)

Take a pic and show us if you can...


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Invisibledysphoria
lost soul

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Registered: 06/04/03
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Re: The other White mold? [Re: The_Shr00m_Man]
    #7487038 - 10/05/07 12:35 AM (16 years, 3 months ago)

all molds start out white, or most i guess.
so it'll be really hard to tell until it sporulates.


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OfflineKrissKross
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Re: The other White mold? [Re: dysphoria]
    #7487330 - 10/05/07 03:05 AM (16 years, 3 months ago)

The appearance of the cakes has not changed in the past 24 hours. My friend is tryung everything he can to make them pin but no luck so far. Unfortunatly i dont have a camera to take pictures.


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Offlineveda_sticks
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Re: The other White mold? [Re: KrissKross]
    #7487374 - 10/05/07 04:30 AM (16 years, 3 months ago)

it may be just mycelium growing into the air where the humidity is highest, since it has been rolled in verm i have seen this before. Im not saying that i am certain its not a mould, but i have heard cakes get fuzzy before,

A Picture would help alot.

Pinning takes about a week, keep giving FAE and misting.

As long as to keep giving fae u should not have problems with cobweb as cobweb likes still stale air.

Cobweb mold when mature is unmistakable,



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Invisiblemycocurious
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Registered: 02/09/07
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Re: The other White mold? [Re: dysphoria]
    #7487754 - 10/05/07 09:21 AM (16 years, 3 months ago)

Quote:

dysphoria said:
all molds start out white, or most i guess.




The second half of this statement is more true than the first. However, the most common types of contaminates that we deal with do have various shades of white mycelium in their vegetative stages...trichoderma, cobweb mold, most common strains of penicillium, etc.

Shittake (Lentinula edodes) mycelium, however, starts of white-ish but becomes more brown as it continues to grow out.


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:justdontknow: Don't mistake my tone for a "matter-of-fact" attitude.  I'm just presenting what I believe to be correct, until I'm corrected...

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------------------------------------
figgusfiddus said:
Keep in mind that inoculating or whatever in front of a flow hood won't help your bad substrate, your bad inoculant, your bad sterile procedure, etc. etc. etc. It's not a +3 flowhood of magic, it's just a tool.


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