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Proteome nameAlkaliphilus metalliredigens - Reference proteome
Proteome IDiUP000001572
Taxonomy293826 - Alkaliphilus metalliredigens (strain QYMF)
Last modifiedFebruary 5, 2017
Genome assembly and annotationi GCA_000016985.1 from ENA/EMBL

Alkaliphilus metalliredigens (strain QYMF) is s an alkaliphilic, moderately halophilic metal-reducing bacterium phylogenetically associated with the Firmicutes. A. metalliredigens was isolated from borax leachate ponds. Alkaliphilus metalliredigens can reduce Fe(III)-citrate, Fe(III)-EDTA, Co(III)-EDTA, or Cr(VI) as electron acceptors with yeast extract or lactate as electron donors. Growth during iron reduction occurs over the pH range of 7.5 to 11.0, a sodium chloride range of 0 to 80 g/l and a temperature range of 4 degrees Celsius to 45 degrees Celsius. Optimal growth conditions during iron reduction in the presence of borate (2 g/l) were observed at a pH of 9.6, a sodium chloride concentration of 20 g/l and a temperature of approximately 35 degrees Celsius. A. metalliredigens is a strict anaerobe that can tolerate up to 1.5% (w/v) borax (Na2B4O7), and the cells are straight rods that produce endospores. The microorganism appears to be a novel metal-reducing bacterium that is distantly related to other commonly studied iron-reducing microorganisms. At the present time (December 2007), the most closely related microorganisms are Alkaliphilus transvaalensis and Alkaliphilus crotonatoxidans.


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  1. "Complete genome sequence of Alkaliphilus metalliredigens strain QYMF, an alkaliphilic and metal-reducing bacterium isolated from borax-contaminated leachate ponds."
    Hwang C., Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina Del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S., Chertkov O., Brettin T., Bruce D., Han C., Schmutz J., Larimer F.
    , Land M.L., Hauser L., Kyrpides N., Mikhailova N., Ye Q., Zhou J., Richardson P., Fields M.W.
    Genome Announc. 2016:0-0(2016) [PubMed] [Europe PMC] [Abstract]