Table 1. Number of protein spots detected in the 2D gels of the analyzed samples at each exposure condition. Opt-optimal laboratory conditions (normal conditions) at which fungi were grown for 30 days at temperature 20°C for E. jeanselmei and K. perforans and 15°C and for C. antarcticus. 24 hours-(D/N) - samples were exposed to Mars-simulated conditions for 24 hours with day/night simulation respectively. 4/7 days- samples were exposed to Mars-simulated conditions for 4 and 7 days respectively. Blank cells (−) indicate that the protein concentration was too low for 2DE analysis.

	Number of spots at each exposure condition
Strain	Opt	24h-D	24h-N	4days	7 days
E. jeanselmei	473	237	-	359	470
K. perforans	624	264	-	286	328
C. antarcticus	406	93	97	-	-