Table 2.

Presence (+) / absence (-) of colonies of fungi (filamentous fungi and black yeast fungi), algae, and bacteria (cyanobacteria included) from rock fragments after EVTs.

	TEST			Colony formation
EVT-E1					Algae	Fungi	Bacteria
	Vacuum		10-5 Pa	1 h	-	-	+
				1 wk	+	-	+
	Freeze and thawing cycles			2 wk	+	+	+
	UV (254 nm), 1 atm
		Fluence:	10 Jm-2		+	+	-
			100 Jm-2		+	+	+
			1000 Jm-2		+	+	+
	UV (200-400 nm), 1 atm
		Fluence:	1.5 kJ m-2		-	+	-
			1.5 × 103 kJ m-2		-	-	-
			1.5 × 105 kJ m-2		-	-	-
EVT-E2
	Vacuum		10-5 Pa	22 d	+	+	-
	Vacuum + UV (200-400 nm)
		Fluence:	1.5 × 105 kJ m-2		-	-	-
Control
	Room temperature, dark, 1 atm, air			2 mo	+	+	+