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Leptospirillum Ferriphilum
''Leptospirillum ferriphilum'' is an iron-oxidising bacterium. It is one of the species responsible for the generation of acid mine drainage Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines. Acid rock drainage occurs naturally within some environments as part of the rock weathering .... It is of particular relevance in South African commercial biooxidation tanks operating at 40 °C. References Further reading * * * * External links *Type strain of ''Leptospirillum ferriphilum'' at Bac''Dive'' - the Bacterial Diversity Metadatabase Nitrospirota Bacteria described in 2002 {{bacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacterium
Bacteria (; singular: bacterium) are ubiquitous, mostly free-living organisms often consisting of one biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep biosphere of Earth's crust. Bacteria are vital in many stages of the nutrient cycle by recycling nutrients such as the fixation of nitrogen from the atmosphere. The nutrient cycle includes the decomposition of dead bodies; bacteria are responsible for the putrefaction stage in this process. In the biological communities surrounding hydrothermal vents and cold seeps, extremophile bacteria provide the nutrients needed to sustain life by converting dissolved compounds, such as hydrogen sulphide and methane, to energy. Bacteria also live in symbiotic and parasitic relationshi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid Mine Drainage
Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of sulfide minerals. Areas where the earth has been disturbed (e.g. construction sites, subdivisions, and transportation corridors) may create acid rock drainage. In many localities, the liquid that drains from coal stocks, coal handling facilities, coal washeries, and coal waste tips can be highly acidic, and in such cases it is treated as acid rock drainage. This liquid often contains highly toxic metals, such as copper or iron. These, combined with reduced pH, have a detrimental impact on the streams aquatic environments. The same type of chemical reactions and pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nitrospirota
Nitrospirota is a phylum of bacteria. It includes multiple genera, such as ''Nitrospira'', the largest. The first member of this phylum, ''Nitrospira marina'', was discovered in 1985. The second member, ''Nitrospira moscoviensis'', was discovered in 1995. Nitrospirota contains nitrifying taxa which oxidize nitrite to nitrate (nitrite-oxidizing bacteria, NOB) and commamox bacteria ''Nitrospira inopinata'' discovered in 2015 and cultivated in 2017. Phylogeny Taxonomy The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature (LSPN) and the National Center for Biotechnology Information (NCBI). * Phylum "Nitrospirota" Garrity & Holt 2021 ** Class " Leptospirillia" *** Order " Leptospirillales" **** Family " Leptospirillaceae" Cavalier-Smith 2020 ***** Genus '' Leptospirillum'' Markosyan 1972 ex Hippe 2000 ****** Species "'' L. ferrodiazotrophum''" Tyson et al. 2005 ****** Species '' L. ferriphilum'' Coram & Rawlings 2002 ****** Speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
