Table 1.

The bacteria from the GenBank database most closely related, according to 16S rRNA gene sequences identified from bottom sediments after 17 months of culturing under thermophilic conditions.

Type/class	Number of sequences	Percentage, %	Nearest 16S rRNA homolog	NCBI No.	Location	Identity, %	E-value
α-Proteobacteria	7224	55.3%	Sphingomonas sp.	LN832012	Neuston, Lake Baikal, Russia	100	2e-129
			Sphingomonas hunanensis	KF923436	Permafrost soils, China	100	2e-129
			Sphingomonas sp.	FM999997	Groundwater well, Finland	100	2e-129
			Sphingomonas sp.	GQ249218	Hydrocarbon-contaminated soil, China	100	2e-129
			Sphingomonadaceae bacterium	DQ490372	Volcanic deposits, Hawaii, USA	100	2e-129
Actinobacteria	2174	16.6%	Arthrobacter sp.	HQ690898	Marine sponge, South Chile Sea	100	2e-139
			Arthrobacter sp.	KP756664	Sea water and stone, Antarctica	99	1e-137
			Arthrobacter agilis	KF306343	Arctic ocean sediment	99	5e-136
			Uncultured bacterium	HQ606221	Sediment of South China Sea	99	1e-137
			Arthrobacter sp.	KF295504	Ice core at 78.26 m depth, China	99	5e-136
	3586	27.4%	Uncultured bacterium	JQ369448	Soil, USA	100	3e-143
			Uncultured Actinobacterium	EU979046	Rhizosphere soil, China	100	3e-143
			Uncultured Solirubrobacterales bacterium	JQ400427	Soil, USA	99	6e-140
			Solirubrobacter sp.a	FJ459990	Pine forest soil, South Korea	90	2e-95

^aNearest cultured homolog.