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/sci/ - Science & Math


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File: 86 KB, 532x612, Deinococcus_radiodurans.jpg [View same] [iqdb] [saucenao] [google]
11220519 No.11220519 [Reply] [Original]

Is this the most resilient organism discovered?
>D. radiodurans is capable of withstanding an acute dose of 5,000 grays (Gy), or 500,000 rad, of ionizing radiation with almost no loss of viability, and an acute dose of 15,000 Gy with 37% viability.[11][12][13] A dose of 5,000 Gy is estimated to introduce several hundred double-strand breaks (DSBs) into the organism's DNA (~0.005 DSB/Gy/Mbp (haploid genome)). For comparison, a chest X-ray or Apollo mission involves about 1 mGy, 5 Gy can kill a human, 200-800 Gy will kill E. coli, and over 4,000 Gy will kill the radiation-resistant tardigrade.
https://en.m.wikipedia.org/wiki/Deinococcus_radiodurans

Is there anything even tougher than this bacterium?

>> No.11220557

That's cool and all.
But thermal resistance of archaea is still cooler imo.

>> No.11220575

>>11220557
Can i get a quick rundown?

>> No.11220581

>>11220575
they simply withstand high temperatures around 100 - 120 degrees celsius, maybe more

>> No.11220641

>>11220581
That's not very high, I was expecting like lava tier temperatures, can anything survive like 1000°C?

>> No.11220678

>>11220641
probably not, maybe something with a diamond cell wall

>> No.11220733

>>11220641
Not anything made with water in it

>> No.11220737
File: 31 KB, 269x287, 1473666773845.jpg [View same] [iqdb] [saucenao] [google]
11220737

>>11220519
>Is there anything even tougher than this bacterium?
I bet they're not tough enough to make plate armour

>> No.11220743

>>11220519
There are endoliths on the ocean floor that are millions of years old
https://en.m.wikipedia.org/wiki/Endolith
These are perhaps the oldest continually living organisms discovered.
There are, however, bacterial spores in new mexico that were revived from being preserved in amber after 240 million years