アゾトバクター・ビネランジー
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/05/08 08:38:32」(JST)
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| Azotobacter |
| Scientific classification |
| Kingdom: |
Bacteria |
| Phylum: |
Proteobacteria |
| Class: |
Gamma Proteobacteria |
| Order: |
Pseudomonadales |
| Family: |
Pseudomonadaceae |
| Genus: |
Azotobacter |
| Species: |
A. vinelandii |
| Binomial name |
Azotobacter vinelandii
Lipman[1] |
Azotobacter vinelandii is gram-negative 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.
A. vinelandii is a free-living N2 fixer known to produce many phytohormones and vitamins in soils. It produces fluorescent pyoverdine pigments.[2]
The nitrogenase holoenzyme of Azotobacter vinelandii has been characterised via x-ray crystallography in both ADP tetrafluoroaluminate-bound[3] and MgATP-bound[4] states. The enzyme possesses molybdenum iron-sulfido cluster cofactors (FeMoco) as active sites, each bearing 2 pseudo-cubic iron-sulfido structures.
References
- ^ William A. Noyes, ed. (1904). Review of American Chemical Research 10. p. 75.
- ^ Menhart, N., Thariath, A., Viswanatha, T. (1991) Characterization of the pyoverdines of Azotobacter vinelandii ATCC 12837 with regard to heterogeneity. Biology of Metals 4(4):223-32
- ^ Schindelin, H., Kisker, C., Schlessman, J.L., Howard, J.B., Rees, D.C. (1997) Structure of ADP x AIF4(-)-stabilized nitrogenase complex and its implications for signal transduction. Nature 387: 370-376
- ^ Chiu, H., Peters, J.W., Lanzilotta, W.N., Ryle, M.J., Seefeldt, L.C., Howard, J.B., Rees, D.C. (2001) MgATP-Bound and nucleotide-free structures of a nitrogenase protein complex between the Leu 127 Delta-Fe-protein and the MoFe-protein. Biochemistry 40: 641-650
External links
- Azotobacter vinelandii Genome Project
- Current research on Azotobacter vinelandii at the Norwich Research Park
English Journal
- Aerobic Hydrogen Production via Nitrogenase in Azotobacter vinelandii CA6.
- Noar J1, Loveless T2, Navarro-Herrero JL3, Olson JW4, Bruno-Bárcena JM5.
- Applied and environmental microbiology.Appl Environ Microbiol.2015 Jul 1;81(13):4507-16. doi: 10.1128/AEM.00679-15. Epub 2015 Apr 24.
- The diazotroph Azotobacter vinelandii possesses three distinct nitrogenase isoenzymes, all of which produce molecular hydrogen as a by-product. In batch cultures, A. vinelandii strain CA6, a mutant of strain CA, displays multiple phenotypes distinct from its parent: tolerance to tungstate, impaired
- PMID 25911479
- Gene Deletions Resulting in Increased Nitrogen Release by Azotobacter vinelandii: Application of a Novel Nitrogen Biosensor.
- Barney BM1, Eberhart LJ2, Ohlert JM3, Knutson CM3, Plunkett MH3.
- Applied and environmental microbiology.Appl Environ Microbiol.2015 Jul 1;81(13):4316-28. doi: 10.1128/AEM.00554-15. Epub 2015 Apr 17.
- Azotobacter vinelandii is a widely studied model diazotrophic (nitrogen-fixing) bacterium and also an obligate aerobe, differentiating it from many other diazotrophs that require environments low in oxygen for the function of the nitrogenase. As a free-living bacterium, A. vinelandii has evolved enz
- PMID 25888177
- Effect of Oxygen Tension and Medium Components on Monomer Distribution of Alginate.
- Kıvılcımdan Moral Ç1, Doğan Ö, Sanin FD.
- Applied biochemistry and biotechnology.Appl Biochem Biotechnol.2015 Jun;176(3):875-91. doi: 10.1007/s12010-015-1617-z. Epub 2015 Apr 16.
- Alginate is a natural biopolymer composed of mannuronic and guluronic acid monomers. It is produced by algae and some species of Azotobacter and Pseudomonas. This study aims to investigate the effect of dissolved oxygen tension (DOT) and growth medium substrate and calcium concentrations on the mono
- PMID 25877399
Japanese Journal
- Effect of nitric oxide on VnfA, a transcriptional activator of VFe-nitrogenase in Azotobacter vinelandii
- Production of polyhydroxybutyrate and alginate from glycerol by Azotobacter vinelandii under nitrogen-free conditions
- A novel bleb-dependent polysaccharide export system in nitrogen-fixing Azotobacter vinelandii subjected to low nitrogen gas levels
Related Links
- Azotobacter vinelandii has been studied for over 100 years since its discovery as an aerobic nitrogen-fixing organism. This species has proved useful for the study of many different biological systems, including enzyme kinetics and the ...
- Description and Significance Azotobacter is a genus of free-living diazotrophic bacteria whose resting stage is a cyst. It is primarily found in neutral to alkaline soils, in aquatic environments, and on some plants. It has several ...
- Azotobacter vinelandii Taxonomy navigation › Azotobacter All lower taxonomy nodes (4) Common name i-Synonym i-Other names i ›ATCC 478 ›Azotobacter miscellum ›Azotobacter vinelandii Lipman 1903 ›DSM 2289 ›IAM 15004 ...
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