Morphology | Chromohalobacter marismortui |
CELLULAR |
Staining | Gram negative |
Morphology | rods (0.6-1.0 x 1.5- 4.0 um) when grown in the presence of 10% NaCl. Cells ae longer is the NaCl concentration is higher or lwer |
Motility | motile by means of peritrichous flagella |
Specialized structures |
Division |
COLONIAL |
Solid surface | On soilid complex media supplemented with 10% NaCl, colonies are circular, smoothm convex, entire and concentrically ringed with dark brown centers followed by bluish brown, grayish brown and yellow rings. They produce a yellow pigments and a violet blue pigment which is not violacein. Pigment formation is favoured by suboptima growth temperatures, glycerol and 10% NaCl |
Liquid |
Growth Parameters | Chromohalobacter marismortui |
PHYSIOLOGICAL |
Tropism | chemoorganothrophic |
Oxygen | aerobe, strictly respiratory metabolism |
pH | optimum pH 7.5 range pH 5-10 |
Temperature | optimum 37 oC, range 5-45 oC |
Requirements | optimum growth occurs in media supplemented with 10% NaCl |
Products | acid produced from D-glucose or other carbohydrates. Gelatin, casein, Tween 80, starch, esculin and tyrosine are not hydrolysed. Carbohydrates, amino acids and some polyols can serve as sole carbon sources. Usually nitrate is reduced to nitrite which is not further reduced. Simmons citrate is used |
Enzymes | no prodcution of phosphatase, indole, urease, acetoin, DNase, Beta-galactosidase, phenylalanine deaminase, arginine dihiydrolase, lysine decarboxylase aor arnithine decarboxylase |
Unique features |
ENVIRONMENTAL |
Habitat | Dead Sea and marine salterns |
Lifestyle | |
Pathogenicity |
Distribution |
Genome | Chromohalobacter marismortui |
G+C Mol % |
Reference | Chromohalobacter marismortui |
First Citation | Ventosa et al 1989 IJSB 39:382-386 |
The Prokaryotes | p |
Bergey's Determinative | p 79 |
References |