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Offlinekrypto2000
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Registered: 12/05/06
Posts: 11,579
Last seen: 4 years, 3 months
Could I use part of a jar if there is bacterial contamination in the bottom?
    #18953252 - 10/09/13 08:34 AM (10 years, 3 months ago)

I've got a few jars which have health mycilium on top, but the bottom is showing signs of bacterial contamination and seems to have stalled colonization due to it. Could I flame sterilize a spoon and just scoop out the top of it to use for spawn or would the bacteria have grown up into already colonized grain?

These were all from a g2g transfer btw so either the jars were improperly sterilized or most likely the bacteria was introduced in the transfer. I did not mix the spawn up after transfering it, just dumped it on top as I wanted to see how long it'd take to colonize downwards, yet it stopped about 2/3rds of the way when bacteria started to show up. Unless bacteria tends to eat its way through mycilium, which it may for all I know, then I'd assume at least the initial spawn is still good and could be scooped out, I have little reason to believe it came with them as the jars smelled fine and showed no signs before the transfer, also it's only a few jars and not all of them, if it came from the initial spawn I'd imagine all the jars would be infected. The reason I want to use them however is because it's enough for two tubs, so worst case I lose a brick of coir in trying to fruit this so if there's a chance it might work I'm not really out much in trying.


Edited by krypto2000 (10/09/13 08:35 AM)


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InvisibleDoge
Stranger Danger


Registered: 10/07/13
Posts: 12
Re: Could I use part of a jar if there is bacterial contamination in the bottom? [Re: krypto2000]
    #18953617 - 10/09/13 10:28 AM (10 years, 3 months ago)

I would give it a shot if you have nothing to lose. If you don't have any other mycellium tho I would throw a couple pieces of the clean grain onto agar and then do a few agar transfers to make sure you have a clean culture again.

My experience with bacteria is that you can get something out of it but it will be a shitty yield and starts fruiting early in some cases. Let us know what you end up doing and how it turns out!


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Offlinekrypto2000
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Registered: 12/05/06
Posts: 11,579
Last seen: 4 years, 3 months
Re: Could I use part of a jar if there is bacterial contamination in the bottom? [Re: Doge]
    #18953754 - 10/09/13 11:05 AM (10 years, 3 months ago)

I've thought about transfering it to agar, but it's about a 2 month old culture at this point having gone through I believe at least 3, maybe 4 g2g transfers. Do you think it'd still be viable if stretched out to agar? I don't have any other cultures to work from (besides these clean looking jars otherwise mentioned which are just as old) so I was hoping to grab a spore print once either of these fruits. An agar plate would be better to work with however.


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