A. vinladii Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla/Divisions Actinobacteria Aquificae Bacteroidetes/Chlorobi Chlamydiae/Verrucomicrobia Chloroflexi Chrysiogenetes Cyanobacteria Deferribacteres Deinococcus-Thermus Dictyoglomi Fibrobacteres/Acidobacteria Firmicutes Fusobacteria Gemmatimonadetes Nitrospirae Omnibacteria Planctomycetes Proteobacteria Spirochaetes Thermodesulfobacteria Thermomicrobia Thermotogae Bacteria (singular, bacterium) are a major group of living organisms. ... Orders Alpha Proteobacteria Caulobacterales - e. ... Orders Alpha Proteobacteria Caulobacterales - e. ... Families Pseudomonadaceae Moraxellaceae Branhamaceae The Pseudomonadales are an order of Proteobacteria. ... Genera Azotobacter group Cellvibrio Pseudomonas The Pseudomonadaceae are a family of bacteria, including Pseudomonas, Cellvibrio, together with the Azotobacter group. ... Genera Azomonas Azotobacter The family Azotobacteraceae contains aerobic diazotrophs with two Genera, Azomonas and Azotobacter, distinguished by the ability to form cysts. ... Species A. vinladii Azotobacter vinlandii is a diazotroph that can fix nitrogen while grown aerobically. ...
Azotobacter are usually motile, oval, or spherical bacteria, form thick-walled cysts, and may produce large quantities of capsular slime. Beyond Azotobacter’s use as a model it has biotechnological applications. A couple examples are its use for alginate production and for nitrogen production in batch fermentations 1,2. Alginate is a linear copolymer with homopolymeric blocks of (1-4)-linked ß-D-mannuronate (M) and its C-5 epimer α-L-guluronate (G) residues, respectively, covalently linked together in different sequences or blocks. ... General Name, Symbol, Number nitrogen, N, 7 Chemical series nonmetals Group, Period, Block 15, 2, p Appearance colorless Atomic mass 14. ...
Note 1: Clementi F. 1997. Alginate production by Azotobacter vinelandii.
Crit Rev Biotechnol. 17(4):327-61.[1] (Abstract)
Note 2: Dixon R and Kahn D. 2004. Genetic regulation of biological nitrogen fixation. Nat Rev Microbiol. 2(8):621-31.[2] (pdf, 463kb)
compare: Acetobacter Acetobacter is a genus of acetic acid bacteria characterized by the ability to convert alcohol (ethanol) to acetic acid in the presence of air. ...
Characteristic colonies of Azotobacter were obtained in about a month, and stained smear preparations of these colonies revealed only the characteristic large cells of the organism.
Fourteen strains of contaminants were isolated the cultural characters of which proved conclusively they were not pleomorphic forms of Azotobacter, the majority being strains of Pseudomonas (fluorescent and non-fluorescent) with one or two species of Achromobacter.
In the absence of Azotobacter, they grow well up to four weeks in flasks of the above liquid mannitol medium, reducing its reaction to a pH of 4.0 in a fortnight although growth was still vigorous.
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