The Slime Mould Collective

An international network of/for intelligent organisms

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  • RyChu
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  • Evan Brown
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  • mint taste slime mould
  • Lauren Loop
  • Kendra Fanconi
  • Kornelija
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  • Patrick Barry

ian's Discussions

Daywalker - is it 'blind''?

Started this discussion. Last reply by ian Jun 26. 4 Replies

I should have done this ages ago. Daywalker doesn't make spores when exposed to day light. We know physarum requires daylight exposure to spore so - Is Daywalker actually 'blind' or is something else…Continue

Spores now available!

Started Jun 21 0 Replies

I've managed to build up a good stock of spores from some of my strains ( loads of them seem to be unable to spore ), if anyone wants some yell. Pretty sure one of the lines is carrying sporulation…Continue


Started this discussion. Last reply by ian Jun 21. 2 Replies

I wondered if the bright orange physarum have different pigments from their paler siblings, so I mashed a load into alcohol ( 80% isopropanol ), filtered out the solids, and ran the residue on paper…Continue

Contamination tolerance assay

Started this discussion. Last reply by ian Jun 21. 7 Replies

Otherwise known as the boredom assay. I suspect some of the slime strains…Continue


ian's Page

Latest Activity

ian replied to Adam Strandberg's discussion Are physarum eating bacteria on oats?
"Container rotation is important, old food is usually where problems start . I also wouldn't keep a culture on the go for more than a week or so - contamination builds up and starts getting transferred with slime. You can buy some time by making…"
Jun 27
ian replied to ian's discussion Daywalker - is it 'blind''?
"An suggestions? - accurate measurement of light isn't practical. Set of ND filters and  a lamp though...."
Jun 26
ian replied to Adam Strandberg's discussion Are physarum eating bacteria on oats?
"Hi When they're plasmodia they're definitely digesting the oats directly - you can see particles of oat in the endoplasm, starch grains are obvious in endocytotic vacuoles under EM and you just don't see enveloped bacteria. Cooked…"
Jun 26
ian replied to ian's discussion Daywalker - is it 'blind''?
"Makes me think I need to come up with some sort of photophobia measuring system"
Jun 25
RyChu liked ian's discussion Daywalker - is it 'blind''?
Jun 24
ian posted a discussion

Daywalker - is it 'blind''?

I should have done this ages ago. Daywalker doesn't make spores when exposed to day light. We know physarum requires daylight exposure to spore so - Is Daywalker actually 'blind' or is something else faulty I ran out a culture onto fresh sugar ( construction ) paper, part covered it and hit it with a spotlampFive minutes and it's shifting. half an hour and it's all hiding. Daywalker can 'see'. …See More
Jun 24
Paul replied to ian's discussion How to get a physarum culture
"Hello Ian, I received a wonderful surprise in the mail today, three physarums...! May thanks, I will give them a good home and pass some along if I can get them to reproduce, many thanks Paul"
Jun 22
ian liked lori solondz's photo
Jun 21
RyChu liked ian's discussion Spores now available!
Jun 21
ian replied to ian's discussion Contamination tolerance assay
"Plain oats is the lower image - rampant pin mould which makes me think the stench might be piggybacking on the slime. I like the idea of letting it start to rot but this assay is a pain,  I wonder, If I made a long row of oat flakes, …"
Jun 21
Patrick Barry replied to ian's discussion Contamination tolerance assay
"A control plate of oats without spores might be a useful comparator too. In terms of breeding it makes me think of those plates for drug resistant bacteria testing. Start off with a slightly mouldy tray of oats, place spore in center, keep strains…"
Jun 21
ian posted discussions
Jun 21
ian replied to ian's discussion Chromatography
"The split tail's just smiling from the out of practice application of stuff to the paper but it was that sample because it had the brightest spots. I'm wondering about  tlc - I have a load of ultra fine pumice and good quality plaster…"
Jun 21
ian replied to ian's discussion Contamination tolerance assay
"Pretty much, the ideal would be to time lapse it but the camera's running 24/7 as it is and I couldn't film all the plates. It's possible to tell by appearance which blobs have been digested and abandoned and which went down with…"
Jun 21
RyChu liked ian's discussion Contamination tolerance assay
Jun 20
RyChu liked ian's discussion Colourimetry
Jun 20

Profile Information

What is your interest in slime moulds? (we need to know you're not a bot or spamster)
I'm a professional microscopist and amateur time lapse filmer. I'm looking forward to combining both disciplines with these fascinating organisms
Academic Institution (if applicable)

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Comment Wall (6 comments)

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Join The Slime Mould Collective

At 15:36 on October 10, 2019, Sean said…
Hello! Thank you for the warm welcome! I’m excited to get working with some slime mould. Just spent the day hunting/photographing some in Epping forest but pretty sure I got 95% mushrooms. Any chance I could send you some pictures of what I think are slime mould spore capsules for your opinion?
At 21:03 on January 16, 2018, Kendra Fanconi said…

Oh that would be amazing. I was looking at ordering it from the US. Is there any issue with getting it through customs? 

At 16:05 on October 27, 2015, Marijn Roelvink said…
We received the Physarum today, thanks a lot!
At 12:19 on October 14, 2015, Marijn Roelvink said…
Hi Ian, thank you for wanting to send the Physarum, I was just wondering if you could tell me when they will arrive, it'll help a lot with our planning :)
At 10:37 on February 10, 2015, enrico viola said…
I received my samples today: thanks a lot!
At 8:10 on February 3, 2015, enrico viola said…

Sent you a pm with my address; thanks again!

Ian's Blog

Raising from Spores - Zero Tech Method

Posted on April 11, 2017 at 13:30 0 Comments

I've been looking for a way to rear physarum from spores without resorting to bacterial lawns and needing autoclaves etc.

I've only done a couple of trials but this method seems to work ok, it does require a bit of patience.

I used petri dishes and filter paper but any container and a bit of tissue should work.

The idea is to let the food go off producing bacteria for the amoebal phase to feed off then slowly dry them out so they get persuaded to form…


Big bang, big disappointment :)

Posted on March 16, 2016 at 17:04 0 Comments

Four weeks of crazy work,  turning the spare room into a culture lab and time lapse studio I made enough culture for two thousand people and I should be there with my friends and colleagues on the stand inspiring the next generation of scientists,  slime fans and eccentrics.  

Unfortunately I'm stuck on a hospital ward with fifty stitches in my neck waiting until I'm allowed home. So it goes I suppose but damn I was looking forward to the Big Bang Fair,  I couldn't even bring a slime…


Plotting and planning....

Posted on June 2, 2015 at 11:31 0 Comments

Getting involved with several schools in my area running STEM club activities - I'm trying to design a six week course on our dear sticky friend that'll be adaptable to ages 12-17. Looks like it'll be fun ( and a lot of work ). My own cultures have been dormant for a while aside from raising the odd batch but I should start playing again soon. 

Raising slime again..

Posted on May 18, 2015 at 14:17 0 Comments

Blimey it's been a while, we've got the finals lab projects for the students at work on at the moment so I'm not getting time to play. I've got a session with 95 school kids booked in in June so I'm raising as much slime as I can cope with in preparation for that. 

I'm planning on getting them to make Plasticine mazes in petri dishes for their cultures so they've something to take home.

I've also got these intriguing mycena cholorophos spores ( a glowing mushroom ),…


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