Query: NC_020207:2240115 Enterococcus faecium NRRL B-2354, complete genome Lineage: Enterococcus faecium; Enterococcus; Enterococcaceae; Lactobacillales; Firmicutes; Bacteria General Information: This genera consists of organisms typically found in the intestines of mammals, although through fecal contamination they can appear in sewage, soil, and water. They cause a number of infections that are becoming increasingly a problem due to the number of antibiotic resistance mechanisms these organisms have picked up. Both Enterococcus faecalis and Enterococcus faecium cause similar diseases in humans, and are mainly distinguished by their metabolic capabilities. This opportunistic pathogen causes a range of infections similar to those observed with Enterococcus faecalis, including urinary tract infections, bacteremia (bacteria in the blood), and infective endocarditis (inflammation of the membrane surrounding the heart). Hospital-acquired infections from this organism are on the rise due to the emergence of antiobiotic resistance strains and has led to the rise of vancomycin-resistant Staphylococcus aureus strains due to the horizontal transfer of Enterococcus antibiotic resistance genes. Little is known about the virulence mechanisms in this organism, but the genome does encode an esp gene for the surface adhesin. Vancomycin resistant isolates are more typically Enterococcus faecium than Enterococcus faecalis.
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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.