Table 1. Classification and general features of Methanobrevibacter sp. AbM4

Current classification

Domain Archaea

TAS [16]

Phylum Euryarchaeota

TAS [17]

Class Methanobacteria

TAS [18,19]

Order Methanobacteriales

TAS [20–22]

Family Methanobacteriaceae

TAS [23,24]

Genus Methanobrevibacter

TAS [20,21]

Species Methanobrevibacter sp. Strain AbM4

IDA

Gram stain

Positive

IDA

Cell shape

Short rod

IDA

Motility

No

IDA

Sporulation

No

IDA

Temperature range

37–39°C

NAS

Optimum temperature

38°C

NAS

Carbon source

Acetate

IDA

Energy source

H₂ + CO₂, formate

IDA

Terminal electron receptor

CO₂

IDA

MIGS-6

Habitat

Ovine abomasum, ovine and bovine rumen

IDA

MIGS-6.3

Salinity

Not reported

MIGS-22

Oxygen

Strict anaerobe

IDA

MIGS-15

Biotic relationship

Symbiont of ruminants

NAS

MIGS-14

Pathogenicity

Not known as a pathogen

NAS

MIGS-4

Geographic location

Palmerston North, New Zealand

IDA

MIGS-5

Sample collection time

Not reported

MIGS-4.1

Latitude

Latitude: −40.35 (40°21′00″S)

IDA

MIGS-4.2

Longitude

Longitude: +175.61 (175°36′36″E)

IDA

MIGS-4.3

Depth

Not reported

MIGS-4.4

Altitude

30 m