Query: NC_017511:1936331 Neisseria gonorrhoeae TCDC-NG08107 chromosome, complete genome
Lineage: Neisseria gonorrhoeae; Neisseria; Neisseriaceae; Neisseriales; Proteobacteria; Bacteria
General Information: One of two pathogenic Neisseria, this species causes the sexually transmitted disease (STD) gonorrhea, which is the leading reportable STD in adults in the USA. This human-specific organism colonizes and invades the mucosal surface of the urogenital epithelium, crosses the epithelial barrier, and ends up multiplying on the basement membrane. The Opa proteins are responsible for the opaque colony phenotype due to the tight junctions between adjacent Neisseria, and are also responsible for tight adherence to host cells. This organism, like Neisseria meningitidis, is also naturally competent for DNA uptake.
Subject: NC_004547:442927 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.