Daywalker - is it 'blind''?

[ian]

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 spotlamp

Five minutes and it's shifting. half an hour and it's all hiding. Daywalker can 'see'. 

[RyChu]

Nice! Good to know!

[ian]

Makes me think I need to come up with some sort of photophobia measuring system

[RyChu]

Wow, yeah you should!

[ian]

Any suggestions? - accurate measurement of light isn't practical. Set of ND filters and  a lamp though....

[Evan Brown]

I would recommend a BH1750 sensor and an Arduino. You can make a cheap lux meter from those.

[Yloo]

Hello everyone, 

Does anyone have any information on the day walker. Where is he from, nature or laboratory ? 
If laboratory, which one? 

If there is already a post on this subject, please let me know. 

Very good day :-)

 

[ian]

Daywalker was bred by me in my early days of raising from spores. The parent strain (X3) came out of the discard dish - I plate out left over spores just in case.

The strains in the discard were spores from the Southern biologicals standard strain from Australia -'A' in my noted, Mazie - a selfed strain derived from the Carolina strain and the Nakagaki lab strain ( via the Dusstour lab). So X3 could be from any two of those or just one of them.

Daywalker was just selfed from X3 spores. I have a strong suspicion that the Nakagaki strain carries the defective sporulation gene as it's popping up in subsequent breeding runs.

[Patrick Barry]

oh that's a pity.

A lab friendly yellow slime that tolerates light would make experiments easier.
one that dislikes light but ALSO refuses to spore is the opposite of helpful.

[ian]

If the illumination's more or less even it behaves - it needs a gradient to follow so I've done mazes and maps like this - and run full sclerotia preps - it doubles my capacity because I usually two trays per slime - one on top to keep the light out,