JMDMT #32 Microfossils of Cyanobacteria in Carbonaceous Meteorites

The James M. DuPont Meteorite Collection - and hydrostatic pressures from 200 to 400 atmos. ZoBell (1958) also states: "The maximum temperature at which the thermophilic cul- tures are active is increased by compression. At 1000 atmospheres one culture reproduced and produced HoS at 104° C. No attempt has been made to as- certain whether bacteria will grow at temperatures higher than 104° C. when compressed, but indications are highly suggestive of the possibilities in view of the protective effect of high pressure on the thermal tolerance of bacteria." The case referred to represents the highest temperature so far recorded for the growth and reproduction of any organism. Eh and pH The best general treatment of the environmental limits of Eh and pH for growth and reproduction