Chro.mo.ha.lo.bac'ter. Gr. neut. n.
chroma
color; Gr. masc. n.
hals halos
the sea, salt; N.L. masc. n.
bacter
rod; N.L. masc. n.
Chromohalobacter
colored salt rod.
Proteobacteria / Gammaproteobacteria / Oceanospirillales / Halomonadaceae / Chromohalobacter
The genus
Chromohalobacter
is classified within the family
Halomonadaceae
and the order
Oceanospirillales
in the class
Gammaproteobacteria
. The cells are Gram‐stain‐negative, motile, and non‐endospore‐forming rods. Colonies are cream, yellow, white, brown, or black pigmented. Chemoorganotrophic. Strictly aerobic or facultatively anaerobic and catalase‐positive. Moderately halophilic. Optimal growth at 7.5–12.5% (w/v) NaCl, at pH 7.0–8.0 and 28–37°C. The predominant cellular fatty acids are C
16:0,
C
19:0
cyclo ω8
c
, C
18:1
ω7
c
, and C
12:0
3‐OH. The predominant respiratory quinone is Q‐9. The DNA G + C content is 56.1–66.0 mol%. Currently, the genus includes eight species:
Chromohalobacter marismortui
(type species of the genus),
Chromohalobacter beijerinckii
,
Chromohalobacter canadensis
,
Chromohalobacter israelensis
,
Chromohalobacter japonicus
,
Chromohalobacter nigrandesensis
,
Chromohalobacter salexigens
, and
Chromohalobacter sarecensis
. The strains of these species were isolated from salt lakes, salterns, and other saline habitats or salted foods.
DNA G + C content (mol%)
: 56.1–66.0.
Type species
:
Chromohalobacter marismortui
(ex Elazari‐Volcani 1940) Ventosa et al. 1989
VP
.