Tags: Bacteria.
Acidisphaera is a genus in the phylum Proteobacteria (Bacteria). The genus contains a single species namely A. rubrifaciens with the following characteristics: 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.