------------------------------------------------------------------ Conditions on Mars: 14µ±7µ -70 to +30 ------------------------------------------------------------------ Anaerobic 6 Low, -60 to +20 sporeformers (CaSO₄) _Clostridia_, _Bacillus planosarcina_ ------------------------------------------------------------------ Anaerobic 6 Low, -60 to +20 nonsporeformers (CaSO₄) _Pseudomonas_, _Rhodopseudomonas_ ------------------------------------------------------------------ Anaerobes Growth Very wet -75 to +25 _Aerobacter aerogenes_, _Pseudomonas sp._ ------------------------------------------------------------------ _Clostridium_, 10 1 -25 to +25 _Corynebacteria_ percent "Thin short rod" or less ------------------------------------------------------------------ _Bacillus cereus_ 2 0.5 -25 to +25 percent soil ------------------------------------------------------------------ _Clostridium sporogenes_ 1 8.4 -25 to +25 (growth) percent ------------------------------------------------------------------ _Clostridium botulinum_ 10 Lyophilized -25 to +25 ------------------------------------------------------------------ _Klebsiella pneumoniae_ 6 Lyophilized -25 to +25 ------------------------------------------------------------------ _Bacillus subtilis_ var. 4 2 percent -25 to +25 _globigii_ ------------------------------------------------------------------ _Sarcina aurantiaca_ 4 0.5 percent -25 to +25 ------------------------------------------------------------------ _Clostridium tetani_ 2 or less 1 percent -60 to +25 ------------------------------------------------------------------ _Aspergillus niger_ Over 6 hr Very dry -60 to +25