------------------------------------------------------------------ _Aspergillus oryzae_ Over 6 hr Very dry -60 to +25 ------------------------------------------------------------------ _Mucor plumbeus_ Over 6 hr Very dry -60 to +25 ------------------------------------------------------------------ _Rhodotorula rubra_ Over 6 hr Very dry -60 to +25 ------------------------------------------------------------------ Pea, bean, tomato, rye, 0.3 Moist +25 sorghum, rice. ------------------------------------------------------------------ Winter rye 0.6 Moist -10 to +23 ------------------------------------------------------------------ Table II.—_Survival and Growth of Organisms in Simulated Planetary (Martian) Environments_ ---------------------------------------------------------------------- Species Atmospheric N₂, CO₂, Substrate pressure, percent percent mm Hg ---------------------------------------------------------------------- Conditions on Mars: 85, 3 to 30 25±15, 11 ---------------------------------------------------------------------- Anaerobic 76 95 5 Air-dried sporeformers soil _Clostridia_, _Bacillus planosarcina_ ---------------------------------------------------------------------- Anaerobic 76 95 5 Air-dried nonsporeformers soil _Pseudomonas_, _Rhodopseudomonas_ ---------------------------------------------------------------------- Anaerobes 760 100 (?) Difco _Aerobacter infusion aerogenes_, broth _Pseudomonas sp._ ---------------------------------------------------------------------- _Clostridium_, 65 100 (?) Soil _Corynebacteria_ "Thin short rod" ---------------------------------------------------------------------- _Bacillus cereus_ 65 94 2.21 Sandstone soil