Query: NC_017387:1110412 Acinetobacter baumannii TCDC-AB0715 chromosome, complete genome
Lineage: Acinetobacter baumannii; Acinetobacter; Moraxellaceae; Pseudomonadales; Proteobacteria; Bacteria
General Information: This bacterium is commonly isolated from the hospital environment and hospitalized patients. It is an aquatic organism, and is often cultured from liquid medical samples such as respiratory secretions, wounds, and urine. Acinetobacter also colonizes irrigating solutions and intravenous solutions. Although it has low virulence, it is capable of causing infection. Most isolates recovered from patients represent colonization rather than infection. When infections do occur, they usually occur in the blood, or in organs with a high fluid content, such as the lungs or urinary tract. Infections by this organism are becoming increasingly problematic due to the high number of resistance genes found in clinical isolates. Some strains are now resistant to all known antibiotics. Most of these genes appear to have been transferred horizontally from other organisms.
Subject: NC_004547:1970686 Erwinia carotovora subsp. atroseptica SCRI1043, complete genome
Lineage: Pectobacterium atrosepticum; Pectobacterium; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria
General Information: This strain (ATCC BAA-672) is a virulent blackleg isolated from the stem of a potato plant. Causative agent for blackleg and soft rot disease in potatoes. Formerly Erwinia, these organisms are plant-specific pathogens that invade the vascular systems of plants. Both Pectobacterium chrysanthemia and Pectobacterium carotovora cause soft-rot diseases of various plant hosts through degradation of the plant cell walls. Pectobacterium colonize the intercellular spaces of plant cells and deliver potent effector molecules (Avr - avirulence) through a type III secretion system (Hrp - hypersensitive response and pathogenicity). Avr proteins control host-bacterium interactions, including host range. Expression of the plant cell-wall-degrading enzymes is controlled through a quorum-sensing mechanism that quantifies the number of Pectobacterium bacteria through measurement of the concentration of small molecules (acyl homoserine lactones) produced by Pectobacterium. Pectobacterium atrosepticum is an environmentally widespread organism that causes blackleg and soft rot disease in potatoes. This organism produces pectolytic enzymes that destroy plant tissue and allow the bacteria to spread.