Acidisphaera

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title: "Acidisphaera" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["bacteria-genera", "rhodospirillales", "monotypic-bacteria-genera"] description: "Genus of bacteria" topic_path: "general/bacteria-genera" source: "https://en.wikipedia.org/wiki/Acidisphaera" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Genus of bacteria ::

| taxon = Acidisphaera | authority = Hiraishi et al. 2000 | type_species = A. rubrifaciens | subdivision_ranks = Species

Acidisphaera is a genus in the phylum Pseudomonadota (Bacteria). The genus contains a single species,

• 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

Etymology

The name Acidisphaera derives from: Neo-Latin noun acidum (from Latin adjective acidus, sour), an acid; Latin feminine gender noun sphaera, a ball, globe, sphere; Neo-Latin feminine gender noun Acidisphaera, acid (-requiring) coccoid microorganism.

While the specific epithet rubrifaciens comes from the Latin adjective ruber -bra -brum, red; Latin v. facio, to make; Neo-Latin participle adjective rubrifaciens, red-producing.)

References

References

1. "''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".
2. {{lpsn. a/acidisphaera.html. Acidisphaera

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