Table 1. Classification and general features of Rubrobacter radiotolerans RSPS-4 according to the MIGS recommendations [35].

MIGS ID	Property	Term	Evidence code
		Domain Bacteria	TAS [36]
		Phylum Actinobacteria	TAS [37]
		Class Actinobacteria	TAS [38]
		Subclass Rubrobacteridae	TAS [36-40]
	Current classification	Order Rubrobacterales	TAS [38,40,41]
		Family Rubrobacteraceae	TAS [38-40]
		Genus Rubrobacter	TAS [42,43]
		Species Rubrobacter radiotolerans	TAS [42,43]
		Strain RSPS-4
	Gram stain	Positive	TAS [1,3]
	Cell shape and pigmentation	Pleomorphic rod shaped; red pigmented, Pink colonies	TAS [1,3]
	Motility	Non-motile
	Sporulation	Does not produce spores	TAS [3]
	Temperature range	30-55ºC	TAS [1]
	Optimum temperature	45ºC	TAS [1]
	Carbon source	Organic carbon compounds
	Energy source	Organic carbon compounds
	Terminal electron receptor	O2, nitrate
MIGS-6	Habitat	Hot springs	TAS [1,3]
MIGS-6.3	Salinity	<Than 0.2% NaCl	TAS [1]
MIGS-22	Oxygen	Aerobic	TAS [1,3]
MIGS-15	Biotic relationship	Free living	TAS [1,3]
MIGS-14	Pathogenicity	None
MIGS-4	Geographic location	São Pedro do Sul	TAS [1]
MIGS-5	Sample collection time	1999	TAS [1]
MIGS-4.1	Latitude	40° 44' 22.09'' N
MIGS-4.2	Longitude	8° 5' 32.47'' W	TAS [1]
MIGS-4.3	Depth	Surface hot spring

Evidence codes - TAS: Traceable Author Statement (i.e., a direct report exists in the literature); NAS: Non-traceable Author Statement (i.e., not directly observed for the living, isolated sample, but based on a generally accepted property for the species, or anecdotal evidence). These evidence codes are from of the Gene Ontology project [44].