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Phony Phone
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Agar work. Bacterial? (PICS)
#26988947 - 10/16/20 06:04 PM (3 years, 5 months ago) |
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These are some agar plates. The following appears to have some yuck in it. Bacterial?
Is it normal for the mycelium to be fluffly? Also, the mycelium has kinda progressed in growth and grown over the possible contams, does that make it safe for transfer or are the contams still there intermingled with the myc?
Here are 2 other plates which imo seem healthy. What do you say?
Plate 1
Plate 2
(The dark areas are the shroom tissue that was cloned)
thanks
Edit: 1 more question. Why isn't it advised to let the myc grow to the edges?
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LoadedFish
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Re: Agar work. Bacterial? (PICS) [Re: Phony Phone]
#26989362 - 10/17/20 12:20 AM (3 years, 5 months ago) |
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The first three pics definitely have a shit ton of bacteria, everything else at least looks worthy of a transfer, but I’m still a noob so let’s see if anyone more experienced comes through to confirm. Even on the bacterial plates you could try to take transfers from the leading edge of the myc as far away as possible from the bacteria.
The general consensus is that the edges of plates are more likely to host hidden contams, so it’s not advised to let your myc grow all the way out and reach them before you transfer out. Seems like lots of people noc up jars and shit with their whole plate edges and all though, so take that as you will
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JHOVA
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Re: Agar work. Bacterial? (PICS) [Re: LoadedFish]
#26989364 - 10/17/20 12:21 AM (3 years, 5 months ago) |
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Take the top off in a sab and tilt it towards the sab opening holes and get some better pics
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MycLife
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Re: Agar work. Bacterial? (PICS) [Re: JHOVA] 1
#26989452 - 10/17/20 01:51 AM (3 years, 5 months ago) |
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Could be some super dense tomentose growth but I dunno. The lighter stuff definitely looks like contam.
Also, what kind of tape is that? Definitely not micropore considering I can literally see through the holes. I think you have the wrong kind of tape to be honest. If you can see through the hole, contams can get through the hole. I completely seal up my agar plates and their is always enough air for the mycelium to completely grow out.
Also never had an issue letting the mycelium grow to the edge of the dish. Lol, I'd like to see you stop it from growing to the edge. Just don't grab your sample from the edge or a previously contamed area and you should be good.
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Phony Phone
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Re: Agar work. Bacterial? (PICS) [Re: MycLife]
#26989629 - 10/17/20 06:24 AM (3 years, 5 months ago) |
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Its micropore but it melted during PC. I suspect poor GE bc of that and hence fluffy myc, is that correct?
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bloodcountess
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Re: Agar work. Bacterial? (PICS) [Re: Phony Phone]
#26989801 - 10/17/20 09:32 AM (3 years, 5 months ago) |
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why do you have a hole in your agar dishes, no reputable tek ive seen so far calls for that
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Phony Phone
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Its no pour agar it calls for a 6mm hole in the center and MP tape which melted during PC and also has a tiny hole in 1 of the plates
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Mycolorado
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Re: Agar work. Bacterial? (PICS) [Re: Phony Phone]
#26989870 - 10/17/20 10:23 AM (3 years, 5 months ago) |
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That’s not mp tape and shit will be falling straight through it onto your media/cultures.
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JHOVA
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Re: Agar work. Bacterial? (PICS) [Re: Mycolorado]
#26989999 - 10/17/20 12:02 PM (3 years, 5 months ago) |
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A strip of tyvek + micropore would be safer. Although i didnt have much contamination going the pasty plate 2 pieces of micropore tape.
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Nichrome
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Re: Agar work. Bacterial? (PICS) [Re: JHOVA]
#26990022 - 10/17/20 12:22 PM (3 years, 5 months ago) |
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Some yeast in there too. You can save those cultures still.
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PBJ710
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Re: Agar work. Bacterial? (PICS) [Re: MycLife]
#26990092 - 10/17/20 01:29 PM (3 years, 5 months ago) |
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Quote:
MycLife said: Also, what kind of tape is that? Definitely not micropore considering I can literally see through the holes. I think you have the wrong kind of tape to be honest. If you can see through the hole, contams can get through the hole. I completely seal up my agar plates and their is always enough air for the mycelium to completely grow out.
Good catch - That's transpore tape, not micropore tape. While both are 'surgical' tapes, they have completely different uses and are made from different materials.
From The manufacturer (3M),
"3M™ Micropore™Surgical Tape “Paper” TapeGentle, breathable tape with rayon backing. For general dressing applications and repeated taping on fragile, at-risk skin. Micropore tape— gentle, breathable"
"3M™ Transpore™ Surgical Tape “Plastic” Tape Transparent, perforated polyethylene film with bi-directional tear. Easily tears into very thin strips. For securing tubing and dressings that need to be monitored.Transpore tape— clear, easy bi-directional tear"
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Phony Phone
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Re: Agar work. Bacterial? (PICS) [Re: PBJ710]
#26990155 - 10/17/20 02:16 PM (3 years, 5 months ago) |
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Quote:
Nichrome said: Some yeast in there too. You can save those cultures still.
where do you spot the yeast?
Quote:
PBJ710 said:
Quote:
MycLife said: Also, what kind of tape is that? Definitely not micropore considering I can literally see through the holes. I think you have the wrong kind of tape to be honest. If you can see through the hole, contams can get through the hole. I completely seal up my agar plates and their is always enough air for the mycelium to completely grow out.
Good catch - That's transpore tape, not micropore tape. While both are 'surgical' tapes, they have completely different uses and are made from different materials.
From The manufacturer (3M),
"3M™ Micropore™Surgical Tape “Paper” TapeGentle, breathable tape with rayon backing. For general dressing applications and repeated taping on fragile, at-risk skin. Micropore tape— gentle, breathable"
"3M™ Transpore™ Surgical Tape “Plastic” Tape Transparent, perforated polyethylene film with bi-directional tear. Easily tears into very thin strips. For securing tubing and dressings that need to be monitored.Transpore tape— clear, easy bi-directional tear"
so paper micropore wont melt i guess
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MycLife
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Re: Agar work. Bacterial? (PICS) [Re: Phony Phone]
#26990415 - 10/17/20 05:49 PM (3 years, 5 months ago) |
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Exactly, you want the paper looking stuff (it's actually more like a material). That's been the micropore tape I always use.
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Nichrome
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Re: Agar work. Bacterial? (PICS) [Re: MycLife]
#26990871 - 10/18/20 12:29 AM (3 years, 5 months ago) |
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The blobby stuff at 12 o'clock in the patch of bacteria is what I suspect is yeast....
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Phony Phone
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Re: Agar work. Bacterial? (PICS) [Re: Nichrome]
#26990905 - 10/18/20 01:29 AM (3 years, 5 months ago) |
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Yep im seeing it now. Yeh, thats almost certainly no mycelium. How do you guys know what contam you are dealing with? Like which kind of bacteria? Is this possible to even tell with the naked eye?
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Pearl
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Re: Agar work. Bacterial? (PICS) [Re: Phony Phone] 1
#26990956 - 10/18/20 03:44 AM (3 years, 5 months ago) |
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To be honest, it doesn't matter what kind it is. You don't want any.
Unless you want to study mold and bacteria, I wouldn't worry about the type.
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MycLife
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Re: Agar work. Bacterial? (PICS) [Re: Phony Phone]
#26991651 - 10/18/20 03:34 PM (3 years, 5 months ago) |
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Quote:
Phony Phone said: Yep im seeing it now. Yeh, thats almost certainly no mycelium. How do you guys know what contam you are dealing with? Like which kind of bacteria? Is this possible to even tell with the naked eye?
Lol, I go by smell ...
Some things are obvious to the naked eye but most are not. This is a good place to start:
https://www.shroomery.org/forums/showflat.php/Number/17231150
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Phony Phone
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Re: Agar work. Bacterial? (PICS) [Re: MycLife]
#27016715 - 11/02/20 03:58 AM (3 years, 4 months ago) |
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Im uploading 2 pics showing mycelium that seems to be "eaten away" at one point. It's a patch with fuzzier mycelium growth over it. You can see the rhziomorphs stalling right behind the fuzzier growth.
What could it be?
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PBJ710
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Re: Agar work. Bacterial? (PICS) [Re: Phony Phone]
#27016815 - 11/02/20 06:22 AM (3 years, 4 months ago) |
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Just looks like the donor sample was placed on it's side during transfer. That isn't a big deal as long as there are no borders showing up in the that part of the plate. Using smaller donor samples will help with it as well.
If that were my dish, I would probably transfer it again just to clean up the growth a bit, but it looks usable as is.
I assume the black sharpie on the dish is just labelling and not marking one of these boundries?
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Phony Phone
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Re: Agar work. Bacterial? (PICS) [Re: PBJ710]
#27016985 - 11/02/20 07:51 AM (3 years, 4 months ago) |
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Not on it side but with the mycelium side facing down, like an agar sandwich. The part where it looks eaten away has some fuzzy "hair" growth, not rhizo, it could be tomentose but its not think. Dont think its cobweb cuz its not offwhite and/or aggressive. Pin mold maybe?
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