The Slime Mould Collective

An international network of/for intelligent organisms

Light filter that would allow to keep cultures in normal light conditions

Hello everyone,

I did not start cultivating physarum yet, but my cultures will arrive soon and I am about to set up my lab.

I was wondering if anybody knows about experiments done with light filters enclosing dishes or containers that would allow to keep cultures in normal light environment, so you could watch it any time?

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I know of experiments done under yellow light and red light, but also under low level white light, i.e. adjustable LED. It can tolerate some light, it just prefers it dark. If there's too much light, it's likely to form fruiting bodies, and then no more creeping plasmodium...

Thanks for the fast reply Heather! So do you know the outcome of those experiments with red or yellow light? Any paper on that?

I've never tried this before, but what if you did try black light?

- Frank May

They really hate UV or anything down the blue end of the spectrum.

They can't see their own colour so you could use it for lighting, the three pigments that make physarum yellow are soluble in alcohol and acetone so you could actually grow up a batch of slime and use it to make a filter..

Hi,

Did you try diffrent led color? I'm interested too !

I know this is an old post , but has anybody done anymore experiments? I came across this paper where they found that blue light fragments the slimemold.

When a plasmodium is illuminated by ultraviolet or blue monochromatic light it breaks up into many equally sized fragments (each fragment contains around eight nuclei) [22]. The fragmentation is tran- sient and after some time the fragments merge back into a fully functional plasmodium.

https://arxiv.org/pdf/1312.4139.pdf

I am interested in keeping it under red light for an exhibition where I am also working with bioluminescent things.

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