Table 3 Genome features and growth characteristics of Chromatium C. okenii strain LaCa and of selected purple sulphur bacteria. CBB: Calvin-Benson-Bassham cycle.

From: Draft Genome Sequence of Chromatium okenii Isolated from the Stratified Alpine Lake Cadagno

Genome features

C. okenii” str. LaCa

T. syntrophicum” str. Cad16T

L. purpurea str. CadA31*

T. violascens DSM 198T

A. vinosum DSM 180T

Genome size [Mb]

3.78

7.74

7.19

5.02

3.67

Number of scaffolds

1

1

302

1

1

Number of contigs

45

3

302

1

3

Average G + C content [%]

49.8

66.2

64.3

62.6

64.2

Number of genomic objects (CDS, fragment CDS, r/tRNA)

3,792

6,601

7,314

4,555

3,366

Number of coding sequences (CDS)

3,016

6,237

7,255

4,317

3,302

Motility

+

+

+

Carbon fixation

CBB

CBB

CBB

CBB

CBB

Thiosufate oxidation

+

+

+

+

Chemotrophic growth

+

+

+

+

Hydrogenases

+

+

+

+

Catalases

+

+

+

+

cbb 3 type terminal cytochrome c oxidase

+

+

+

+

Pigments

BChl a, okenone

BChl a, okenone

BChl a, okenone

BChl a, rhodopinal

BChl a, spirilloxanthin

Vitamin B12 requirement

+

+

+

+

+

Generation time [h]

120–168

121

33–35

NA

13–20