Table 1.

Classification and general features Methanoculleus bourgensis strain MAB1 according to the MIGS specification [42]

MIGS ID	Property	Term	Evidence codea
	Classification	Domain Archaea	TAS [43]
		Phylum Euryarchaeotes	TAS [44]
		Class Methanomicrobia	TAS [45, 46]
		Order Methanomicrobiales	TAS [47, 48]
		Family Methanomicrobiaceae	TAS [49]
		Genus Methanoculleus	TAS [50]
		Species Methanoculleus bourgensis	TAS [18, 51]
		Strain MAB1	TAS [11]
	Gram stain	Negative	TAS [11]
	Cell shape	Irregular coccus	TAS [11]
	Motility	Not observed	TAS [11]
	Sporulation	Not observed	TAS [11]
	Temperature range	15–50 °C	TAS [23]
	Optimum temperature	44–45 °C	TAS [23]
	Carbon source	CO2	TAS [11]
MIGS-6	Habitat	Anaerobic digester	TAS [11]
MIGS-6.3	Salinity	0.0–0.220 M NH4Cl	TAS [11]
MIGS-22	Oxygen requirement	Anaerobe	TAS [11]
MIGS-15	Biotic relationship	Syntrophy (beneficial), free living	TAS [11]
MIGS-14	Pathogenicity	Not reported	NAS
MIGS-4	Geographic location	Biogas reactor, Uppsala, Sweden	NAS
MIGS-5	Sample collection	1989	NAS
MIGS-4.1	Latitude	59.8581° N	NAS
MIGS-4.2	Longitude	17.6447° E	NAS
MIGS-4.4	Altitude	not applicable	NAS

^aEvidence codes - IDA Inferred from Direct Assay, 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 the Gene Ontology project [52]