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Steven Paul Wetzel
  • Butler, PA
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Steven Paul Wetzel's Discussions

Physarum Has Simple Memory

Started Jan 26, 2013 0 Replies

I found this article about how slime molds have developed an external chemical memory to help them avoid areas they have already explored.  When they come across an old slime trail they detect a…Continue

Methods and Tips for Storing Sclerotium

Started this discussion. Last reply by Heather Barnett Sep 14, 2011. 2 Replies

I am down to 4 sclerotias of P polycephalum that I got from Carolina Biological and was wondering what is the best method for storing them and keeping them viable.  I am currently keeping mine in the…Continue

 

Steven Paul Wetzel's Page

Latest Activity

Tuva Holt Hereng liked Steven Paul Wetzel's video
Feb 3, 2016
David Eaton commented on Steven Paul Wetzel's video
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P Polycephalum Eating Small Puffball

"So cool! By the way, is that pizza on the left?"
Dec 31, 2014
Steven Paul Wetzel posted a discussion

Physarum Has Simple Memory

I found this article about how slime molds have developed an external chemical memory to help them avoid areas they have already explored.  When they come across an old slime trail they detect a chemical in it that tells them "look elsewhere, no food here".  The slime mold will follow this programing unless starving.  Link to article: http://news.mongabay.com/2012/1008-hance-slime-mold-memory.htmlThis…See More
Jan 26, 2013
Steven Paul Wetzel commented on Steven Paul Wetzel's video
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Physarum polycephalum Eating Wild Fungus

"I used a paper towel cut into disks and moistened with water.  This allows me to replace a disk if it gets too soiled with rotting food.  "
Jan 26, 2013
Alicia commented on Steven Paul Wetzel's video
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P Polycephalum Eating Sliced Open Puffball

"Wow.  I've never seen that before, aneurysms that is."
Jan 21, 2013
bruce kamolnick commented on Steven Paul Wetzel's video
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Physarum polycephalum Eating Wild Fungus

"Thank you Steven. I believe that would translate to 5 hours (120sec film x30fps x5s)/3600sec/hr = 5. Can you also tell me what the base material the physarum is on? I've generally used agar, but have tried a few variations as well."
Jan 16, 2013
Steven Paul Wetzel commented on Steven Paul Wetzel's video
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P Polycephalum Eating Sliced Open Puffball

"As the feeding increases in rate watch for the aneurysms, the rapid ballooning in the cytoplasm streams."
Jan 16, 2013
Steven Paul Wetzel posted videos
Jan 16, 2013
Steven Paul Wetzel commented on Steven Paul Wetzel's video
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Physarum polycephalum Eating Wild Fungus

"I think this was captured at one frame every 5 seconds and 30 frames per second play-back.  The slime did penetrate the fungus but it left behind the fibrous structure after digestion,  a skeleton of sorts.  "
Jan 16, 2013
bruce kamolnick commented on Steven Paul Wetzel's video
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Physarum polycephalum Eating Wild Fungus

"How long a period was this captured over?"
Jan 8, 2013
Deborah Nelson commented on Steven Paul Wetzel's video
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Physarum polycephalum Eating Wild Fungus

"Steven, Excellent video.  I'm an enthusiast for (real) animation, this could be used as art- especially in one of the darker eastern European style works. The pulsations are interesting- about the rate of a human heart at rest, and far…"
Jan 7, 2013
Steven Paul Wetzel posted videos
Aug 29, 2012
Heather Barnett replied to Steven Paul Wetzel's discussion Methods and Tips for Storing Sclerotium
"Glad you resolved the issue. I've never refrigerated mine so haven't had similar problems. Thanks for sharing the remedy!"
Sep 14, 2011
Steven Paul Wetzel replied to Steven Paul Wetzel's discussion Methods and Tips for Storing Sclerotium
"It Turns out the sclerotias have to sit in the open air of the room they are in for 12 or more hours in order to recuperate from the cold storage before they are re-hydrated.  I hope this new information helps the rest of you who store your…"
Sep 12, 2011
Steven Paul Wetzel posted a discussion

Methods and Tips for Storing Sclerotium

I am down to 4 sclerotias of P polycephalum that I got from Carolina Biological and was wondering what is the best method for storing them and keeping them viable.  I am currently keeping mine in the little plastic box they came in and the zip-lock bag also.  I also heard they can be kept in the refrigerator for up to a year which is also what I am doing.   My bigger problem is that upon re-hydration my plasmodia are small, slow, and die on the oatflakes after 36 hours.  Should I take the…See More
Sep 8, 2011
Steven Paul Wetzel posted albums
Aug 26, 2011

Profile Information

Name
Steven Wetzel
Interest in slime moulds
I first found out about slime molds when I was culturing termites to feed to my ants. I discovered in the termite terrarium a yellow growth that reminded me of the veins in a leaf. I did some research and found out it was a plasmodial slime mold similar to physarum but was actually badhamia utricularis. My microbiology professor at the time wanted me to put together a presentation for the class on slime molds for extra credit. Since then (2008) I have been gathering information on them and trying to grow them from the wild (gather fallen sticks and put them into a humid terrarium to see what develops).

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Comment Wall (2 comments)

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At 15:34 on August 8, 2011, Heather Barnett said…

Ok, I'll try it with some cardboard and see if it take the bait!

And yes slimoco is free to join, a portal for all interested in slime moulds...

The Physarum roseum is exquisite, like blood vessels. Would love to grow some!

At 9:36 on August 8, 2011, Heather Barnett said…
Hi Steven, Welcome to slimoco! I'm trying to get some Badhamia utricularis going from sclerota state at the moment, without much luck. They don't seem to like oats in the same way as Physarum. Would be interesting to see/know more about your experiments and observations. Am also interested in the relationships between swarming and agent based behaviours in different organisms. Feel free to share/discuss here... Heather
 
 
 

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