Are you suspending mycellium in the distilled water? What type of storage vessel? I can see centrifuge tubes working.
Think I found it in the post you bumped, basically a Liquid innoculant!
Yes. I harvest mycelium and leave behind the agar, and blend it in distilled water then inject it in to a tube with a stopper. Before sterilizing the tubes i evacuate all the air from the tube making it a vacutainer.
The vacuum ensures that i can fill the tube full without having to port it and leaves only the dissolved O2 in the distilled water. The key is no nutes, and no O2 or at least very minimal.
I believe when no nutes or O2 are present it puts in a state of animated suspension if that's the correct terminology. Its not hibernation because i believe all biological functions stop. If you have O2 or nutes present then the culture will try to complete aerobic cellular respiration or if there are no nutes but lots of O2 it would starve or if there were lots of nutes, but the O2 is depleted then it will suffocate.
Now keep in mind the said-above is in reference to long term storage and im talking 5 years, 10 years, or more. I revived a beach mushroom culture that was 5 years old stored in this method while my buddy Needles, just rejuvenated a Psilocybe azurescens after 8 years.
There some good scientific studies and data on this method but you have to dig through the weeds to find it on the internet. If i can locate the link i visited several years ago i will post it. It was silly like 200 cultures from 20 different species had a 95% regen rate after 3 years or 5 years.....i forget.