- Beladjal, Lynda, Tom Gheysens, James S. Clegg, Mohamed Amar, and Johan Mertens. "Life from the ashes: survival of dry bacterial spores after very high temperature exposure." Extremophiles (2018): 1-9.
See also Turn Up the Heat: Bacterial Spores Can Take Temperatures in the Hundreds of Degrees - New research makes panspermia—the spreading of life from one planet to another—more likely - By Dirk Schulze-Makuch, airspacemag.com, September 27, 2018
The researchers collected microorganisms within soils from Jordan, Tunisia, Morocco and the Canary Islands, and showed that the hardiest of them, a Bacillus species from Morocco, could survive in a dried spore stage at temperatures up to 420o C. More than 90 percent of spores could be “resurrected” after heating to 300o C, and about 40 percent after being heated to 420°C.