Beijerinckia derxii

Beijerinckia derxii

Classification

Higher order taxa

Bacteria; Proteobacteria; Alphaproteobacteria; Rhizobiales; Beijerinckiaceae; Beijerinckia; Beijerinckia derxii

NCBI: Taxonomy |}

Description and significance

Non-motile, unicellular organism. Free-living (non-symbiotic), Aerobic, chemoheterotrophic bacteria with N2 fixing capabilities. Rod-shaped when young; pear, or dumbbell shaped cells with aging; polar lipoid bodies on each end of the cell. These bacteria are extremely acid tolerant and have been shown to fix more nitrogen as the acidity levels increase (up to 2.7 pH) (Barbosa et. all. 2002)

Genome structure

Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence?

Cell structure and metabolism

Interesting features of cell structure; how it gains energy; what important molecules it produces.

Ecology

Initially isolated from a Malaysian quartzite soil by Altson in 1936

References

Heloiza R. Barbosa; Marcos A Moretti; Daniela S. Thuler; Elisabeth F.P. Augusto. Nitrogenase activity of Beijerinckia Derxii is preserved under adverse conditions for its growth. Brazilian Journal of Microbiology. São Paulo. Vol.33 no.3. July/Sept. 2002
Christina Kennedy. Genus I. Beijerinckia Derx
Heloiza R. Barbosa; Deliela S. Thuler; Márcia A. Shirakawa; Natália R.S. Miyasaka. Beijerinckia Derxii stimulates the viability of non-n2-fixing bacteria in nitrogen-free media. Brazilian Journal of Microbiology. São Paulo. Vol.31 no3. July/Sept 2000
Jan Hendrik Becking. The Genus Beijerinckia. Prokaryotes 5. p151-162. 2006