Pre_GI: SWBIT SVG BLASTN

Query: NC_014923:1249267 Mesorhizobium ciceri biovar biserrulae WSM1271 chromosome, complete

Lineage: Mesorhizobium ciceri; Mesorhizobium; Phyllobacteriaceae; Rhizobiales; Proteobacteria; Bacteria

General Information: Country: Italy; Environment: Host, Rhizosphere, Root nodule, Soil; Isolation: 5 km before Bottida, Sardinia; Temp: Mesophile. Mesorhizobium species are fast-growing rhizobia. Strains generally form nitrogen-fixing nodules on the roots of a restricted range of leguminous plants. Mesorhizobium ciceri nodulates chickpeas.

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BLASTN Alignment.txt

Subject: NC_008380:4968492 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.