Bradyrhizobium
| Bradyrhizobium | |
|---|---|
| Cross section though a soybean (Glycine max 'Essex') root nodule. Bradyrhizobium japonicum infects the roots and establishes a nitrogen fixing symbiosis. This high magnification image shows part of a cell with single bacteroids within their symbiosomes | |
| Scientific classification | |
| Domain: | Bacteria |
| Kingdom: | Pseudomonadati |
| Phylum: | Pseudomonadota |
| Class: | Alphaproteobacteria |
| Order: | Hyphomicrobiales |
| Family: | Nitrobacteraceae |
| Genus: | Bradyrhizobium Jordan 1982 |
| Type species | |
| Bradyrhizobium japonicum | |
| Species | |
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See text | |
| Synonyms | |
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Bradyrhizobium is a genus of Gram-negative soil bacteria, many of which fix nitrogen. Nitrogen fixation is an important part of the nitrogen cycle. Plants cannot use atmospheric nitrogen (N2); they must use nitrogen compounds such as nitrates.