Bradyrhizobium japonicum
| Bradyrhizobium japonicum | |
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| File:Bradyrhizobium japonicum USDA 110 on TY agar.JPG | |
| Bradyrhizobium japonicum strain USDA 110 on an agar plate. | |
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B. japonicum
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| Binomial name | |
| Bradyrhizobium japonicum |
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| Synonyms | |
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Rhizobium japonicum Buchanan 1926 |
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Bradyrhizobium japonicum is a species of legume-root nodulating, microsymbiotic nitrogen-fixing bacterium species. B. japonicum is identified as a DNA homology group (group II).[2]
B. japonicum is able to degrade catechin with formation of phloroglucinol carboxylic acid, further decarboxylated to phloroglucinol, which is dehydroxylated to resorcinol and hydroxyquinol.[citation needed]
B. japonicum possess the nosRZDFYLX gene, which aides in denitrification and has two catalytic subunits - Cu-a and Cu-z (with several histidine residues). It manages an expression cascade that can sense oxygen gradients, termed 'FixJ-FixK2-FixK1.' FixJ positively regulates FixK2, which activates nitrogen respiration genes as well as FixK1. FixK1 mutants are unable to respire from nitrogen due to a defective catatylic copper subunit (Cu-z) in nosRZDFYLX.[3]
References
- ↑ Transfer of Rhizobium japonicum Buchanan 1980 to Bradyrhizobium gen. nov., a genus of slow-growing, root nodule bacteria from leguminous plants. Int. J. Syst. Bacteriol., 1982, 32, 136-139.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
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Wikispecies has information related to: Bradyrhizobium japonicum |
