Pre_GI: SWBIT SVG BLASTN

Query: NC_006055:456711 Mesoplasma florum L1, complete genome

Lineage: Mesoplasma florum; Mesoplasma; Entomoplasmataceae; Entomoplasmatales; Tenericutes; Bacteria

General Information: Isolated from the surface of the lemon tree flower. Bacterium which lacks a cell wall. This organism is a member of the Mollicutes which are bacteria that lack a cell wall and are obligately parasitic on a number of organisms including mammals, insects, and plants. Mesoplasma florum is a nonpathogenic organism and is nonmotile and is not closely related to Mycoplasma genitalium and Mycoplasma pneumoniae. Unlike other Mollicutes, this species does not require sterol to be supplied in the media for growth.

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Subject: NC_012850:4422966 Rhizobium leguminosarum bv. trifolii WSM1325, complete genome

Lineage: Rhizobium leguminosarum; Rhizobium; Rhizobiaceae; Rhizobiales; Proteobacteria; Bacteria

General Information: Temp: Mesophile; Habitat: Host, Root nodule. This biovar is a symbiont of clover plants and is important commercially as it is used in the agricultural industry. Strain WSM1325 is compatible with many perennial clovers of Mediterranean origin used in farming, such as T. pratense, and is therefore one of the most important clover inoculants but is incompatible with American and African perennial clovers, such as those nodulated by the dissimilar strain WSM2304. 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.