TABLE 3.

Bacterial phyla retrieved from various surfaces of the Analog habitat

Taxon	No. of 16S rRNA amplicon reads from samples:
	No PMA, LDP	PMA, LDP	No PMA, metal/glass	PMA, metal/glass
Actinobacteria	852,891	71,011	16,611	757
Bacteroidetes	2,444	190	58
Firmicutes	115,140	21,236	36,816	10,446
Fusobacteria			3,119
Alphaproteobacteria	58,475	4,003	9,467	3,597
Betaproteobacteria	1,240	2,288	3,694	4,753
Gammaproteobacteria	105,666	8,176	76,384	3,259
Unassigned	41,008	4,127	31,833
Total no. of reads	1,176,864	111,031	177,982	22,812