Phylogeny of microorganisms populating a thick, subaerial, predominantly lithotrophic biofilm at an extreme acid mine drainage site

Article Abstract:

Phylogenetic analysis of a population of microorganisms in a lithotrophic biofilm at an acid mine drainage site reveals novel sequence diversities with a majority of them belonging to iron-oxidizing acidophiles, dominant being Leptospirillum species. Data indicate existence of redox condition in the main oxidizing environments of biofilms.

United States, Analysis, Environmental aspects, Microbial mats, Phylogeny, Mine drainage

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Comparison of acid mine drainage microbial communities in physically and geochemically distinct ecosystems

Article Abstract:

Researchers detected Ferroplasma spp., Leptospirillum spp. and Sulfobacillus spp. at a site of acid mine drainage at Iron Mountain, California. Extensive mining has exposed a large sulfide ore body to weathering by air and water.

Mineral deposits, Mines and mineral resources, Mining

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Metabolically active eukaryotic communities in extremely acidic mine drainage

Article Abstract:

Characterization of the diversity of filamentous fungi and protists in the Richmond Mine at Iron Mountain, Calif by utilizing both beta-tubulin and 18S rRNA gene sequence phylogenetic analyses is reported. The development of 18S rRNA fungal probes helped in identifying and studying the distribution of lineages of morphologically indistinguishable fungi in environmental samples. Three isolates with 18s rRNA genes that are closely related to the Dothideomycetes clones were obtained and the name "Acidomyces richmondensis" is suggested for the isolates on the basis of their genus-level phylogenetic divergence and environmental adaptation.

Science & research, Eukaryotes, Nucleotide sequence, Base sequence, Ribosomal RNA

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