Query: NC_002927:383760 Bordetella bronchiseptica RB50, complete genome
Lineage: Bordetella bronchiseptica; Bordetella; Alcaligenaceae; Burkholderiales; Proteobacteria; Bacteria
General Information: This strain was isolated from a rabbit. Causes a respiratory illness in animals. This group of organisms is capable of invading the respiratory tract of animals and causing severe diseases. They express a number of virulence factors in order to do this including filamentous hemagglutinins for attachment, cytotoxins, and proteins that form a type III secretion system for transport of effector molecules into host cells. Bordetella bronchiseptica, which is one of the few Bordetella that is capable of persisting in the environment, is rarely found in humans and is often associated with animals. This organism cause respiratory disease most commonly in pigs, rabbits and dogs.
Subject: NC_008380:4532969 Rhizobium leguminosarum bv. viciae 3841, complete genome
Lineage: Rhizobium leguminosarum; Rhizobium; Rhizobiaceae; Rhizobiales; Proteobacteria; Bacteria
General Information: This biovar nodulates legumes in the Tribe Viciae (Vicia, Pisum, Lathyrus, Lens). This strain is a spontaneous streptomycin-resistant mutant of strain 300. Nitrogen-fixing plant symbiont. This organism, like other Rhizobia, establishes a symbiotic relationship with a legume plant, providing nitrogen in exchange for a protected environment. The legume roots secrete flavonoids and isoflavonoids which the bacteria recognize and use to turn on genes involved in root nodulation. Many of the root nodulation genes are involved in synthesis and secretion of a nodule inducing signal, a lipochito-oligosaccharide molecule, which the plant recognizes, triggering nodule formation. The bacterium is endocytosed and exists inside a membrane bound organelle, the symbiosome, and fixes nitrogen for the plant cell while the host cell provides carbon compounds for the bacterium to grow on. The nitrogen fixation is important as it obviates the need for expensive and environmentally damaging fertilizer use.