Global InformationArchaeal Richmond Mine acidophilic nanoorganisms information
 | This article may be too technical for most readers to understand. (April 2018) |
| ARMAN (uncultured acidophilic lineages) | |
|---|---|
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| Scientific classification | |
| Domain: | Archaea
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| Phylum: | Micrarchaeota Parvarchaeota
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Archaeal Richmond Mine acidophilic nanoorganisms (ARMAN) were first discovered in an extremely acidic mine located in northern California (Richmond Mine at Iron Mountain) by Brett Baker in Jill Banfield's laboratory at the University of California Berkeley. These novel groups of archaea named ARMAN-1, ARMAN-2 (Candidatus Micrarchaeum acidiphilum ARMAN-2), and ARMAN-3 were missed by previous PCR-based surveys of the mine community because the ARMANs have several mismatches with commonly used PCR primers for 16S rRNA genes. Baker et al.[1] detected them in a later study using shotgun sequencing of the community. The three groups were originally thought to represent three unique lineages deeply branched within the Euryarchaeota, a subgroup of the Archaea. However, based on a more complete archaeal genomic tree, they were assigned to a new superphylum named DPANN.[2] The ARMAN groups now comprise deeply divergent phyla named Micrarchaeota and Parvarchaeota.[3] Their 16S rRNA genes differ by as much as 17% between the three groups. Prior to their discovery, all of the Archaea shown to be associated with Iron Mountain belonged to the order Thermoplasmatales (e.g., Ferroplasma acidarmanus).
- ^ Baker, Brett J.; et al. (2006). "Lineages of Acidophilic Archaea Revealed by Community Genomic Analysis". Science. 314 (5807): 1933–1935. Bibcode:2006Sci...314.1933B. doi:10.1126/science.1132690. PMID 17185602. S2CID 26033384.
- ^ Rinke, C; Schwientek, P; Sczyrba, A; Ivanova, NN; Anderson, IJ; Cheng, JF; Darling, A; Malfatti, S; Swan, BK; Gies, EA; Dodsworth, JA; Hedlund, BP; Tsiamis, G; Sievert, SM; Liu, WT; Eisen, JA; Hallam, SJ; Kyrpides, NC; Stepanauskas, R; Rubin, EM; Hugenholtz, P; Woyke, T (2013). "Insights into the phylogeny and coding potential of microbial dark matter". Nature. 499 (7459): 431–437. Bibcode:2013Natur.499..431R. doi:10.1038/nature12352. hdl:1912/6194. PMID 23851394.
- ^ Castelle, CJ; Wrighton, KC; Thomas, BC; Hug, LA; Brown, CT; Wilkins, MJ; Frischkorn, KR; Tringe, SG; Singh, A; Markillie, LM; Taylor, RC; Williams, KH; Banfield, JF (2015). "Genomic Expansion of Domain Archaea Highlights Roles for Organisms from New Phyla in Anaerobic Carbon Cycling". Current Biology. 25 (6): 690–701. doi:10.1016/j.cub.2015.01.014. PMID 25702576.