Table 1 Characteristics of the Brucella strains used in CO ₂ -dependence studies

Reference/collection strains

 B. suis 1330 (1)

–

Virulent; reference strain of biovar 1; ATCC 23444

[9]

 B. suis 513 (5)

–

Virulent; reference strain of biovar 5; NCTC 11996

[9, 45, 61]

 B. abortus 2308W (1)

–

Virulent; Wisconsin replicate of USDA challenge strain 2308

[45, 62]

 B. abortus 544 (1)

+

Virulent; reference strain of biovar 1; ATCC 23448

[9]

 B. abortus 292 (4)

+

Virulent; reference strain of biovar 4; ATCC 23451

[9]

 B. ovis PA (n.a.)^a

+

Virulent; challenge strain used in B. ovis vaccine studies.

[63,64,65]

 B. ovis REO198 (n.a.)^a

–

Attenuated; genome not sequenced; used for R antigen production for serodiagnosis of ovine epididymitis

[3, 66]

Field strains

 B. abortus AB0339 (1)

+

Cattle isolate

[44]

 B. abortus AB0127 (3)

+

Cattle isolate

[44]

 B. abortus AB0130 (3)

+

Cattle isolate

[44]

Spontaneous mutants

 BoPA-CO ^mut₂ (n.a.)^a

–

B. ovis PA mutant isolated during routine work at CITA

This work (Ov-2357)

 AB0339-CO ^mut₂ (1)

–

B. abortus mutant isolated during routine work at University of Navarra

This work (AZB250)

 AB0127-CO ^mut₂ (3)

–

B. abortus mutant isolated during routine work at University of Navarra

This work (AZB251)

 AB0130-CO ^mut₂ (3)

–

B. abortus mutant isolated during routine work at University of Navarra

This work (AZB252)