Microbiology: Eukaryotic diversity in Spain's River of Fire

Details Microbiology: Eukaryotic diversity in Spain's River of Fire Microbiology: Eukaryotic diversity in Spain's River of Fire

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002natur.417..137a&link_type=abstract

Nature, Volume 417, Issue 6885, pp. 137 (2002).

Physics

22

Scientific paper

The Rio Tinto, known by the Phoenicians as 'Ur-yero', or 'River of Fire', because of its deep red colour and high acidity, flows through the world's largest pyritic belt in southwestern Spain. Surprisingly, eukaryotic microbes are the principal contributors of biomass in this hostile river, which has a pH of 2 and contains much higher concentrations of heavy metals than are typically found in fresh waters. Here we show that the Rio Tinto shows an unexpected degree of eukaryotic diversity and includes new lineages that we have identified by sequence analysis of genes encoding small-subunit ribosomal RNAs. The diversity of these eukaryotes is much greater than that of prokaryotes, whose metabolism is responsible for the extreme environment.

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