Query: NC_003919:4568892 Xanthomonas axonopodis pv. citri str. 306, complete genome
Lineage: Xanthomonas citri; Xanthomonas; Xanthomonadaceae; Xanthomonadales; Proteobacteria; Bacteria
General Information: This organism is the causal agent of citrus canker, a bacterial infection originating from southeast Asia which now occurs worldwide. Primarily a pathogen of plants in the Citrus genus, the disease is sometimes also found in other members of the Rutaceae. The bacterium survives in leaf, shoot and fruit lesions that develop during the spring, and which also cause secondary infections. During warm, wet weather in spring and early summer, the bacterium oozes out of overwintering lesions and infects new growth via the stomal pores or wounds. The bacterium may also survive for various periods of time in the soil or associated with other hosts.
Subject: NC_007952:1293024 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.