''Derxia gummosa'' is a

Gram-negative Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. They are characterized by their cell envelopes, which are composed of a thin peptidoglycan cell wall ...

rod-shaped A bacillus (), also called a bacilliform bacterium or often just a rod (when the context makes the sense clear), is a rod-shaped bacterium or archaeon. Bacilli are found in many different taxonomic groups of bacteria. However, the name ''Bacillu ...

nitrogen-fixing Nitrogen fixation is a chemical process by which molecular nitrogen (), with a strong triple covalent bond, in the air is converted into ammonia () or related nitrogenous compounds, typically in soil or aquatic systems but also in industry. Atmos ...

, obligate aerobe

bacterium Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among ...

of the genus ''

Derxia ''Derxia'' is a genus of Gram-negative, nitrogen-fixing bacteria from the family of Alcaligenaceae The Alcaligenaceae are a family of bacteria, included in the order Burkholderiales. Members are found in water, soil, humans, and other animals ...

''. Colonies of ''D. gummosa'' produce a tenacious gum.Journal of General Microbiology
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References

External links

Type strain of ''Derxia gummosa'' at Bac''Dive'' - the Bacterial Diversity Metadatabase
Burkholderiales Bacteria described in 1960 {{Betaproteobacteria-stub