Query: NC_007963:814148 Chromohalobacter salexigens DSM 3043, complete genome
Lineage: Chromohalobacter salexigens; Chromohalobacter; Halomonadaceae; Oceanospirillales; Proteobacteria; Bacteria
General Information: Chromohalobacter salexigens DSM 3043 was first isolated from a solar salt facility on Bonaire Island, Netherlands Antilles. A moderate halophile which can grow on a variety of salts. This bacterium is a moderate halophile, yet does not require high concentrations of sodium chloride. The salt requirements of this organism can be met by ions of other salts, such as potassium, rubidium, ammonium, bromide. Several plasmids have been isolated from this organism. Plasmid pMH1 contains genes for resistance to kanamycin, neomycin, and tetracycline. A smaller plasmid, pHE1, which does not code for antibiotic resistance genes, has also been isolated.
Subject: NC_007952:2812996 Burkholderia xenovorans LB400 chromosome 2, complete sequence
Lineage: Burkholderia xenovorans; Burkholderia; Burkholderiaceae; Burkholderiales; Proteobacteria; Bacteria
General Information: Originally identified as Pseudomonas sp. LB400 that was found in contaminated soil in upstate New York, USA, this organism is now classified in the genus Burkholderia. Polychlorinated biphenyl-degrading bacterium. Member of the genus Burkholderia are versatile organisms that occupy a surprisingly wide range of ecological niches. These bacteria are exploited for biocontrol, bioremediation, and plant growth promotion purposes. Burkholderia xenovorans has been found on fungi, animals, and from human clinical isolates such as from cystic fibrosis (CF) patients. It may be tightly associated with white-rot fungus, as the degadation of lignin by the fungus results in aromatic compounds the bacterium can then degrade. This organism is exceptionally capable of degradation of polychlorinated biphenyls (PCBs), which are environmental pollutants, and thus it may play a role in bioremediation of polluted and toxic sites and is studied as a model bioremediator. PCBs can be utilized as the sole carbon and energy source by this organism. The pathways for degradation of PCBs have been extensively characterized at both the genetic and the molecular level and have become a model system for the bacterial breakdown of these very persistent environmental contaminants.