Derxia Jensen et al. 1960 (Approved Lists 1980)
General information
Name
Derxia
Valid publication
1980
Effective publication
1960
Nomenclature type
Derxia gummosa
Etymology
N.L. fem. n. <i>Derxia</i>, named after the Dutch microbiologist H.G. Derx (1894-1953).
Description and emendation
Original Description
expand / minimize
Rod-shaped, non-spore-forming cells, young cells slender, capsule-bearing, with homogeneous cyptoplasm, later showing a typical alveolar structure and wide morphological variation, under certain circumstances motile with a single polar flagellum. The organism is mesophilic, aerobic but catalase-negative and produces acid from several carbohydrates. Growth is poor in sugar-free protein media, but vigorous in simple media containing, e.g., glucose or mannitol where the growth assumes a very tenacious consistency. Elementary nitrogen is fixed in the absence of combined nitrogen; the gains may rise to 25 mg nitrogen per gram supplied carbon source.
Subdivision(s)
MID | Name | Rank | Taxon ID |
---|---|---|---|
M022503010112001 | Derxia gummosa | Species | 203699 |
M022503010112002 | Derxia lacustris | Species | 764842 |
References
1
Jensen, H.L., Petersen, E.J., De, P.K., and Bhattacharya, R. A new nitrogen-fixing bacterium: Derxia gummosa nov. gen. nov. spec. Arch. Mikrobiol. (1960) 36:182-195.[DOI:10.1007/BF00412286]
2
Skerman, V.B.D., McGowan, V., and Sneath, P.H.A. (editors). Approved lists of bacterial names. Int. J. Syst. Bacteriol. (1980) 30:225-420.[DOI:10.1099/00207713-30-1-225]