Definitions for azotobacter vinelandii
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Azotobacter vinelandii is diazotroph that can fix nitrogen while grown aerobically. It is a genetically tractable system that is used to study nitrogen fixation. These bacteria are easily cultured and grown. It is a free-living N2 fixer which is known to produce many phytohormones and vitamins in the soil. The nitrogenase holoenzyme of Azotobacter vinelandii has been characterised via x-ray crystallography in both ADP tetrafluoroaluminate-bound and MgATP-bound states. The enzyme possesses molybdenum iron-sulfido cluster cofactors as active sites, each bearing 2 pseudo-cubic iron-sulfido structures.
U.S. National Library of Medicine
A species of gram-negative, aerobic bacteria first isolated from soil in Vineland, New Jersey. Ammonium and nitrate are used as nitrogen sources by this bacterium. It is distinguished from other members of its genus by the ability to use rhamnose as a carbon source. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
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