Acidisphaera

Acidisphaera is a genus in the phylum Pseudomonadota (Bacteria). The genus contains a single species,[1] namely A. rubrifaciens with the following characteristics:[2]

  • strictly aerobic, light preferred
  • mesophilic
  • acidophilic (3.5–6.0 pH, optima of 4.5-5.0)
  • bacteriochlorophyll (BChl a) and carotenoids production (salmon-pink colonies), the former contained zinc if grown in the presence of 1 mM zinc sulfate.
  • chemo-organotrophic
  • Gram-negative, as expected from a proteobacterium
  • isolated from acidic hot springs and mine drainage
  • non-motile
  • cocci / coccobacilli
  • Part of the major acidophilic alphaproteobacterial group with the genera Acidiphilium and Rhodopila

Acidisphaera
Scientific classification
Domain:
Bacteria
Phylum:
Pseudomonadota
Class:
Alphaproteobacteria
Order:
Rhodospirillales
Family:
Acetobacteraceae
Genus:
Acidisphaera
Type species
A. rubrifaciens

Etymology

The name Acidisphaera derives from:
New Latin noun acidum (from Latin adjective acidus, sour), an acid; Latin feminine gender noun sphaera, a ball, globe, sphere; New Latin feminine gender noun Acidisphaera, acid (-requiring) coccoid microorganism.[1]
While the specific epithet rubrifaciens comes from the Latin adjective ruber -bra -brum, red; Latin v. facio, to make; New Latin participle adjective rubrifaciens, red-producing.)[1]

See also

References
  1. Acidisphaera entry in LPSN; Euzéby, J.P. (1997). "List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet". International Journal of Systematic and Evolutionary Microbiology. 47 (2): 590–2. doi:10.1099/00207713-47-2-590. PMID 9103655.
  2. "Acidisphaera rubrifaciens gen. nov., sp. nov., an aerobic bacteriochlorophyll-containing bacterium isolated from acidic environments -- Hiraishi et al. 50 (4): 1539 -- International Journal of Systematic and Evolutionary Microbiology". Archived from the original on 2006-12-08. Retrieved 2011-05-27.
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