Table 1.

Comparison of genomic and phenotypic features of the four members of the genus Acidihalobacter

Feature	Genome
	Acidihalobacter strain F5T	Acidihalobacter prosperus DSM5130T	Acidihalobacter aeolianus DSM 14174T	Acidihalobacter ferrooxydans DSM 14175T
Genome size (Mbp)	3.57	3.36	3.36	3.45
G+C content (mol%)	59.9	64.5	62.2	61.6
Predicted coding DNA sequence (CDS)	3233	3088	3194	3089
Plasmid	–	–	162 484 bp (pABPV6)	–
tRNA genes	47	48	46	45
Sulphur oxygenase reductase (EC 1.13.11.55)	–	+	–	+
Temperature range for growth (°C)	24–33	20–45 [9]	26–42 [60]	26–43 [60]
Optimum temperature for growth (°C)	30	33 [9]	36 [60]	36 [60]
pH range for growth	2.0–4.0	1.0–4.5 [9]	1.5–3.0 [14]	1.0–3.0 [14]
Optimum pH for growth	2.5	2.0 [9]	1.8 [14]	1.8 [14]
NaCl range for growth (mM)	5–1283	70–1030 [18]	60–1283 [7]	60–856 [7]
Optimum NaCl (mM) for growth on FeSO4 and K2S4O6	428	340 [9]	428 [7, 45, 60]	428 [7, 60]
Optimum NaCl (mM) for growth on pyrite	513	n/a	256 [7]	856 [7]
Optimum NaCl (mM) for growth on chalcopyrite	254	na	na	na

+, Present; −, absent; na, not available.