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OfflineXerbia
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What part of these Agar plates do I want to transfer?
    #24842803 - 12/12/17 08:21 PM (6 years, 1 month ago)

Which part of these agar plates would I want to transfer, ands what's the reasoning behind choosing specific points? Last time I just chose a random spot for the transfers, but I've ready theres specific parts you want to use.



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Re: What part of these Agar plates do I want to transfer? [Re: Xerbia]
    #24842949 - 12/12/17 09:48 PM (6 years, 1 month ago)

The plate on the left, it's hard to say because the condensation is obstructing the view. However, the plate on the right shows some decent rhizomorphic mycelium from about the 12 o'clock position to the 6 o'clock. If it was me I would stick to transferring from that side of the plate. The other side looks less organized and fluffy....I tend to stay away from those areas. I will say the plate on the left has some promising Rhizo from about 10 to 1 o'clock, but the condensation makes it hard to prospect the rest of the plate.


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OfflinePsilicon
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Re: What part of these Agar plates do I want to transfer? [Re: Xerbia]
    #24842951 - 12/12/17 09:49 PM (6 years, 1 month ago)

Yeah, you want to grab the fastest growth.  In both of those cases they look almost exactly even, which is unusual but no big deal.  No matter where you take your wedge, you've got the fastest growth. Maybe 12:00 in the first one has made it a little farther from your wedge than other sectors.


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InvisibleMateja
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Re: What part of these Agar plates do I want to transfer? [Re: Xerbia]
    #24842960 - 12/12/17 09:52 PM (6 years, 1 month ago)

Quote:

Stropharis said:
Stro's Cleaning and Isolating On Agar




I recommend putting all your spores and clones on agar first, by doing so, you can ensure that you are working with a clean culture before you introduce it to grains, and it will also take out the guess work of spore viability.

So once you have a culture growing on agar, you will now want to make sure that it is clean and free of contaminates. How do you get there? Well for starters you need a few things, pictured below is the majority of them.



You will need a Still Air Box to do this, if you do not have one, it is a very easy build using Stro's Still Air Box. Ideally though, given that you have sufficient time and/or money, I recommend building a laminar flow hood. However, their will still be circumstances that make a still air box the more suitable choice. If you are going to build one, Stro’sFlowhood Build may be of use to you, building it was a very rewarding process. If you do decide to use it as a reference, please share your progress with me.

Some other items needed include paper towels, isopropyl alcohol, lighter, alcohol lamp or similar, gloves, scalpel, new dishes, and parafilm or cling wrap, and your cultures of course.

To demonstrate how I clean up my cultures when they need it, I will be using a few clone cultures that I took using different levels of care so they would have different levels of contamination for the purpose of this write up. A, B, and C. 

A


B


C



I don't think I have to tell you what clone was taken carelessly, the photos speak for themselves.

When taking A, I swung my un sterilized scalpel like a battle axe dismembering the pin and watched it fall onto the substrate below, then I stabbed it while doing my best Braveheart scream and preceded to gently place it on the plate. I figured this was a fairly un-climactic ending so I shook the dish and watched the nasty little pin roll around contaminating the entire medium surface.

You would ideally want to do a transfer from a dish as soon as you see growth to avoid spreading any contaminants during the transfers. The less there is growing on your dish before the transfer the better.

So now we need to clean these up right? In order to do that, we will be transferring contaminant free, healthy mycelium growth to a fresh plate. Lets use A for an example, on a culture this nasty you might want to look at it and decide where you will be taking your transfer from before you are working inside you SAB, you will be working with a limited view.

Taking another look at A; there are limited options. Using a clock position, as people often use discussing agar sectors, the best option I see here is at about 4:30 but even this area is pretty close to bacteria which I have circled in red. Care must be taken to avoid those areas so we can do this in one transfer. In addition, it is a good idea to get a good look from the back as well, sometimes bacteria can be underneath the mycelium and then you would be transferring contaminant laden mycelium. The green area is that actual wedge that I transferred from this plate to a new one.



In B you can see that there is only a small culture of bacteria that is by coincident also at the 4:30 and that all other area are suitable for transfer.


And C, does it even need a transfer? No it doesn't, you can see it is already clean culture and was ready for grains as is.  I did it anyways to keep all my clones running together and it will also further isolate the strain. 


So lets cover the transfer now;

First the working surface is wiped down with lysol and an air sanitizer sprayed into the air, and all necessary equipment wiped down with isopropyl alcohol and placed in an appropriate location relative to your work area. The bag of fresh plates was brought inside my SAB, opened, removed plates, closed, then removed from SAB. I don't normally do this but I did it to provide for more room and to facilitate this write up.

Here you can see I am just about ready to go.


All the wrap is removed from the dishes and they are set up. The dishes closest to me are ready for transfer and the ones furthest are "on deck".

Sterilize your scalpel over your alcohol flame (outside your SAB of course) and the bring it inside. Open your new dish and cool the blade on the outer perimeter of your agar. If you look, you will notice these marks on a lot of the dishes you see photos of. Here it is highlighted in blue. The mark from cooling the scalpel.


I will let the photos do most of the talking for the transfer.





A few things to note here is that my new dish is on my left side, I do this because I do not want to be reaching over it for any reason. I am right handed and will be using my right hand to do the transfers; if you were left-handed you would want to reverse this. I also do my best to have the clock position that I want easily accessible so I am not spending any more time than necessary with top off. When I transfer it to the new dish, I do my best to only reach over the agar with the scalpel and to not have my hand over the dish at any point. Normally I would complete all transfers before I wrap and mark my dishes but for the purpose of this write up, I then wrapped the new dish.



All right, that covers that for the most part. Lets talk sectoring; I will go ahead and use the images that I have up to discuss this.

Although C is a clone, it isn't a true monoculture. Sectors aren't always easy to see but most of the time you can get a general idea of sectors by the outer perimeter of the mycelia growth. I will use a bit of imagery to show you what I mean, how to select them, and explain why it is important that you don't get too wrapped up or concerned about "sectors".

I honestly don't need to isolate C any further, it is going to produce and perform well and in fact there is a possibly that isolating it further can be counter productive. I actually only took one transfer from this culture as previously discussed as I currently can't facilitate very many projects at the moment.

Moving on, if we generalize here and at a glance establish sectors based on the outer perimeter of the culture, we get something like this. You can see the fan like colonies spreading themselves out and growing at different rates and with different characteristics, sometimes separated with less dense areas refereed to as "lines of isolation". At first glance there are roughly six sectors there.



At a closer look though, there are more than that. For an example I will use only the 11:00 to 2:00 on the same image only cropped and inverted so I don't sit here all night drawing lines.

Highlighted in pink you can see even more lines of isolation and segregated individual sectors highlighted in green. Where I said we have two, well now we can see six.



I guess my point is, that it isn't important to split hairs when sectoring, as long as you are isolated away from contaminates and you are taking small transfers from the outer edge of the healthiest, strongest, and fastest rhizomorphic mycelium. If you take a small peace from the very outer edge of the area where there is one distinct sector, when there are actually three, congrats you just snatched up the fasted monoculture in the area.

Another point I would like to make while I am in the process here. Some things outside genetics can have an effect on the characteristic of your culture, whether it be rhizomorphic (strandy) and tomentose (cottony).  Things like the nutritional value of your growth medium and temperature. These plates were transferred to a different batch of agar although the measurements and method of preparation were kept the same; using Sto's Agar Prep

500ml distilled water (1/2 liter)
10g Agar-Agar
10g Malt Extract



They were however moved to a higher temperature for colonization.  There appearances speak for themselves. The colonization times were faster and characteristics are distinctive. If I don't keep medium and conditions consistent, the mycelium tricks me up. The most important thing here is we now have three clone cultures that are clean and nearly ready for grains.

Updated with a few photos, to keep things simple I will reorganize.


Original clone cultures



Seven days after first transfer from clone culture


Eleven days after first transfer from clone culture


As you can see the cultures are looking healthy and the strains ar showing their individual characteristics in A and B and as suspected C is a true monoculture.

As a learning tool, I will go over one or two things here. When I first posted the photo that were taken seven days after transfer someone was asking me a few questions and I said;

Quote:

Stropharis said:
C is now true monoculture, yes. As for A I believe there are two strains but it is hard to tell




What made me come to the conclusion that A had two strains when I posted that photo? Again it was primarily the outer parameter of the culture, although it was young and tomentose, take a look at the 12 o'Clock and you will see a very small sector with different behavior than the rest of the uniform culture.



Now just four days later, after it has matured quite a bit and has also developed rhizomorphic hyphea, you can see the contrast in uniformity between the sector at 12 o'Clock, it has fanned out and distinguished itself even greater. I was happy to see C look so clean and that sector on A distinguish itself so much after saying that.





- Stro





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OfflineXerbia
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Re: What part of these Agar plates do I want to transfer? [Re: Psilicon]
    #24842965 - 12/12/17 09:54 PM (6 years, 1 month ago)

THanks guys appreciate it!


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Re: What part of these Agar plates do I want to transfer? [Re: Psilicon]
    #24842972 - 12/12/17 09:56 PM (6 years, 1 month ago)

Search youtube "Let's Grow Mushrooms! 2 7 Strain Isolation" :thumbup::mushroom2:


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OfflinePsilicon
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Re: What part of these Agar plates do I want to transfer? [Re: Tormato]
    #24842976 - 12/12/17 09:58 PM (6 years, 1 month ago)

Don't learn about mushrooms from YouTube, plz


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Re: What part of these Agar plates do I want to transfer? [Re: Psilicon]
    #24842982 - 12/12/17 10:00 PM (6 years, 1 month ago)

Fair enough...you'll find the same video on this highly trusted website :wink:

http://www.mushroomvideos.com/


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InvisibleMateja
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Re: What part of these Agar plates do I want to transfer? [Re: Tormato]
    #24842986 - 12/12/17 10:02 PM (6 years, 1 month ago)

Quote:

Psilicon said:
Don't learn about mushrooms from YouTube, plz





Quote:

Tormato said:
Search youtube "Let's Grow Mushrooms! 2 7 Strain Isolation" :thumbup::mushroom2:



:cookiemonster: This is an exception


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Re: What part of these Agar plates do I want to transfer? [Re: Mateja]
    #24842994 - 12/12/17 10:04 PM (6 years, 1 month ago)

Thank you Mateah :cool:


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OfflinePsilicon
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Re: What part of these Agar plates do I want to transfer? [Re: Mateja]
    #24842997 - 12/12/17 10:06 PM (6 years, 1 month ago)

I have a lot of disagreements with the Rog, but agree that these videos have pretty good info for the most part.  Never wipe after a flame, though.

That said, I suggest not making an exception because people get on the YouTube train and it isn't long before it takes them to Willy Myco's station.  Mushroomvideos.org is a better place to watch RR's stuff, anyway.


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Oat Prep Tek
Bored?  Please take one of my experiments off my hands.


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Re: What part of these Agar plates do I want to transfer? [Re: Psilicon]
    #24843000 - 12/12/17 10:09 PM (6 years, 1 month ago)

Willy Willy! :laugh:

Yeah, definitely not a good source on the youtube train! I could never watch him...


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OfflineBushwush
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Re: What part of these Agar plates do I want to transfer? [Re: Xerbia]
    #26434075 - 01/14/20 10:07 PM (4 years, 14 days ago)

Thanks, I  just learned so much


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Re: What part of these Agar plates do I want to transfer? [Re: Mateja]
    #27658332 - 02/14/22 07:58 AM (1 year, 11 months ago)

Nice post Mateja, thanks!


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