Chromohalobacter salexigens DSM 3043

Chromohalobacter_salexigens
Names Chromohalobacter salexigens DSM 3043
Accession numbers NC_007963
Background Chromohalobacter salexigens DSM 3043 is a metabolically versatile, moderately halophilic and halotolerant bacterium, isolated from a solar saltern on Bonaire, Netherlands Antilles. It is a gamma-Proteobacterium, and as such, closely related to Pseudomonas and Eschrichia coli . It has resistance functions to heavy metals and can degrade aromatic hydrocarbons. It is an aerobic chemoorganotroph that grows on a wide range of simple carbon compounds at NaCl concentrations between 0.5 M and 4 M, with an optimum at 2-2.5 M. Some groups of bacteria balance the high osmolality of their environment with high intracellular concentrations of KCl. Instead C. salexigens uses organic solutes to provide the necessary osmotic balance. These organic "compatible" solutes, such as glycine betaine, ectoine, simple sugars, and many others are much less disruptive to normal functioning of enzymes than high concentrations of KCl, and accordingly less farreaching adaptations are required in the protein structure. Osmoadaptation is achieved by de novo synthesis of ectoine (ectABC) and hydroxyectoine, and by the uptake of osmoprotectants such as choline, choline-O-sulfate and glycine betaine. (EBI Integr8)
Taxonomy
Kingdom:Bacteria
Phylum:Proteobacteria
Class:Gammaproteobacteria
Order:Oceanospirillales
Family:Halomonadaceae
Genus:Chromohalobacter
Species:salexigens
Strain DSM3043
Complete Yes
Sequencing centre (15-MAR-2006) US DOE Joint Genome Institute, 2800 Mitchell Drive B100, Walnut Creek, CA 94598-1698, USA
(17-APR-2006) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA
Sequencing quality Level 6: Finished
Sequencing depth NA
Sequencing method Sanger
Isolation site solar salt facility cont. more than 10% NaCl
Isolation country Netherlands
Number of replicons 1
Gram staining properties Negative
Shape Bacilli
Mobility No
Flagellar presence Yes
Number of membranes 2
Oxygen requirements Aerobic
Optimal temperature 37.0
Temperature range Mesophilic
Habitat Fresh water, Solar saltern
Biotic relationship Free living
Host name NA
Cell arrangement Pairs, Singles
Sporulation Nonsporulating
Metabolism NA
Energy source Chemoorganotroph
Diseases None
Pathogenicity No