Chromohalobacter beijerinckii

Chromohalobacter beijerinckii
Scientific classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Pseudomonadota
Class: Gammaproteobacteria
Order: Oceanospirillales
Family: Halomonadaceae
Genus: Chromohalobacter
Species:
C. beijerinckii
Binomial name
Chromohalobacter beijerinckii
(Hof 1935)
Peçonek et al. 2006
Synonyms

Pseudomonas beijerinckii Hof 1935

Chromohalobacter beijerinckii is a motile, rod-like, salt-loving, Gram-negative soil bacterium, 0.4–0.6 μm by 1.8–2.5 μm.

The bacterium was isolated in 1935 by T. Hof from fermented salted beans preserved in brine. Hof named it Pseudomonas beijerinckii and identified it as the organism responsible for the purple color of that food. The pigment was the calcium salt of tetrahydroxy-p-benzoquinone Ca2C6O6, derived from the beans' myo-inositol. The bacterium thrives in media with salt (NaCl) concentrations ranging from 0.35% to 25%; the optimum growth occurs at 8 to 10% NaCl, pH 7.5, and 35 °C.