this post was submitted on 01 Dec 2025
341 points (97.2% liked)

science

22692 readers
517 users here now

A community to post scientific articles, news, and civil discussion.

rule #1: be kind

founded 2 years ago
MODERATORS
 

"That fungus is called Cladosporium sphaerospermum, and some scientists think its dark pigment – melanin – may allow it to harness ionizing radiation through a process similar to the way plants harness light for photosynthesis. This proposed mechanism is even referred to as radiosynthesis."

cross-posted from: https://lemmy.world/post/39553283 https://libretechni.ca/post/483480

you are viewing a single comment's thread
view the rest of the comments
[–] Goretantath@lemmy.world 34 points 1 day ago (5 children)

Does this fungus "eat" the radiation, as in we can use it to clean up radioactive areas? Cause that'd be nice.

[–] Treczoks@lemmy.world 35 points 23 hours ago (1 children)

Sadly, no. Radioactive processes happen without any external control (at least not on this level, they don't run a reactor or accelerator), and this fungus only harvests the energy.

[–] jj4211@lemmy.world 22 points 18 hours ago (1 children)

Akin to how plants photosynthesize without doing anything to the sun.

At least there it does provide shade, though I doubt the fungus would provide a whole lot of shielding...

[–] frongt@lemmy.zip 6 points 15 hours ago* (last edited 15 hours ago) (1 children)

If it's absorbing the energy, then it's not passing through. That's shielding.

But like light shining through a plant's leaves, it probably doesn't absorb anywhere near all the energy, so probably not useful as actual shielding material.

[–] village604@adultswim.fan 2 points 11 hours ago

But, like any shielding, the thickness matters. And if this stuff could also convert CO2 to oxygen, having a bunch would be a good thing.

[–] Deconceptualist@leminal.space 23 points 1 day ago* (last edited 1 day ago) (2 children)

Well if it just evolved this ability that suggests it found a unique niche. But it probably hasn't optimized this, since it doesn't have any pressure to compete against other organisms for the radiation source.

But the good news is that we could selectively breed the fungus, or even generically engineer it (once the genes are isolated) to maximize the ability much faster.

I don't know how useful it would be for site cleanup but it might at least become good insulation (like the idea of space station shielding mentioned in the article).

[–] AA5B@lemmy.world 1 points 19 hours ago

We could breed it to incorporate radioactive particles to make it independently self-sustaining

[–] Cethin@lemmy.zip 1 points 12 hours ago* (last edited 4 hours ago)

One potentially useful thing that they could be used for is finding radioactive contamination. Presumably it grows best at higher radiation, so instead searching with ~~ginger~~ Geiger counters for radioactive contaminants you could spread this stuff out over the environment, then just look for where it is growing a while later. Engineer it to be bright orange or something.

[–] a4ng3l@lemmy.world 22 points 17 hours ago (1 children)

It eats the radiation, not its source though. The emitter would have to be removed. Maybe it could be used in shielding ? Like in space where background radiation seems to be a problem.

[–] _stranger_@lemmy.world 1 points 11 hours ago (1 children)

It needs carbon to grow, so it would be a CO2 scrubber AND a source of food assuming it's edible. 🤔🤔🤔

[–] a4ng3l@lemmy.world 4 points 11 hours ago (1 children)

I would not be eating something with a radioactive-based diet in space… that’s like 2 steps away from opening the gates of hell of something like that xD

[–] _stranger_@lemmy.world 3 points 10 hours ago (1 children)
[–] a4ng3l@lemmy.world 2 points 7 hours ago

Damn that was a rough one

[–] sirico@feddit.uk 2 points 23 hours ago

Like everything nuclear, it's a double edge sword. Clearing up nuclear power would be amazing. People knowing they can Nuke something and eradicate the after effects quickly

[–] MonkderVierte@lemmy.zip 2 points 21 hours ago* (last edited 21 hours ago)

You mean, digesting one of the dotzens of toxic Uran derivatives to thin air? I don't think so.