From Genes to Genomes: Beyond Biodiversity in Spain's Rio Tinto
Spain’s Rio Tinto, or Red River, an example of an extremely acidic (pH 1.7–2.5) environment with a high metal content, teems with prokaryotic and eukaryotic microbial life. Our recent studies based on small-subunit rRNA genes reveal an unexpectedly high eukaryotic phylogenetic diversity in the river...
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Veröffentlicht in: | The Biological bulletin 2003-04, Vol.204 (2), p.205-209 |
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description | Spain’s Rio Tinto, or Red River, an example of an extremely acidic (pH 1.7–2.5) environment with a high metal content, teems with prokaryotic and eukaryotic microbial life. Our recent studies based on small-subunit rRNA genes reveal an unexpectedly high eukaryotic phylogenetic diversity in the river when compared to the relatively low prokaryotic diversity. Protists can therefore thrive in and dominate extremely acidic, heavy-metal-laden environments. Further, because we have discovered protistan acidophiles closely related to neutrophiles, we can hypothesize that the transition from neutral to acidic environments occurs rapidly over geological time scales. How have these organisms adapted to such environments? We are currently exploring the alterations in physiological mechanisms that might allow for growth of eukaryotic microbes at acid extremes. To this end, we are isolating phylogenetically diverse protists in order to characterize and compare ion-transporting ATPases from cultured acidophiles with those from neutrophilic counterparts. We predict that special properties of these ion transporters allow protists to survive in the Rio Tinto. |
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Amaral Zettler ; Messerli, Mark A. ; Laatsch, Abby D. ; Peter J. S. Smith ; Sogin, Mitchell L.</creator><creatorcontrib>Linda A. Amaral Zettler ; Messerli, Mark A. ; Laatsch, Abby D. ; Peter J. S. Smith ; Sogin, Mitchell L.</creatorcontrib><description>Spain’s Rio Tinto, or Red River, an example of an extremely acidic (pH 1.7–2.5) environment with a high metal content, teems with prokaryotic and eukaryotic microbial life. Our recent studies based on small-subunit rRNA genes reveal an unexpectedly high eukaryotic phylogenetic diversity in the river when compared to the relatively low prokaryotic diversity. Protists can therefore thrive in and dominate extremely acidic, heavy-metal-laden environments. Further, because we have discovered protistan acidophiles closely related to neutrophiles, we can hypothesize that the transition from neutral to acidic environments occurs rapidly over geological time scales. How have these organisms adapted to such environments? We are currently exploring the alterations in physiological mechanisms that might allow for growth of eukaryotic microbes at acid extremes. To this end, we are isolating phylogenetically diverse protists in order to characterize and compare ion-transporting ATPases from cultured acidophiles with those from neutrophilic counterparts. We predict that special properties of these ion transporters allow protists to survive in the Rio Tinto.</description><identifier>ISSN: 0006-3185</identifier><identifier>EISSN: 1939-8697</identifier><identifier>DOI: 10.2307/1543560</identifier><identifier>PMID: 12700155</identifier><language>eng</language><publisher>United States: Marine Biological Laboratory</publisher><subject>Acidophiles ; Acids ; Adenosine triphosphatases ; Adenosine Triphosphatases - isolation & purification ; Analysis ; Biodiversity ; Biofilms ; Biological diversity ; Cell membranes ; Environmental aspects ; Euglena ; Eukaryotes ; Eukaryotic cells ; Freshwater ; Fungi ; Genes ; Genes, rRNA - genetics ; Genetic aspects ; Genetic research ; Genomes ; Hydrogen-Ion Concentration ; ion transport ; Likelihood Functions ; Marine biology ; Microbial populations ; Microbiology ; Microorganisms ; Outcomes of Genome-Genome Interactions: Proceedings of a Workshop Sponsored by the Center for Advanced Studies in the Space Life Sciences at the MBL 1 to 3 May 2002 ; Phylogeny ; Physiological aspects ; Protista ; Rivers ; Spain</subject><ispartof>The Biological bulletin, 2003-04, Vol.204 (2), p.205-209</ispartof><rights>Copyright 2003 The Marine Biological Laboratory</rights><rights>COPYRIGHT 2003 University of Chicago Press</rights><rights>COPYRIGHT 2003 University of Chicago Press</rights><rights>Copyright Marine Biological Laboratory Apr 2003</rights><rights>In copyright. Digitized with the permission of the rights holder. http://creativecommons.org/licenses/by-nc-sa/3.0</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c740t-4bc633e65ee3e475edca5504388807864b097a3d3e16741faf77892f31f1429f3</citedby><cites>FETCH-LOGICAL-c740t-4bc633e65ee3e475edca5504388807864b097a3d3e16741faf77892f31f1429f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/1543560$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/1543560$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,885,27924,27925,58017,58250</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12700155$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Linda A. 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Further, because we have discovered protistan acidophiles closely related to neutrophiles, we can hypothesize that the transition from neutral to acidic environments occurs rapidly over geological time scales. How have these organisms adapted to such environments? We are currently exploring the alterations in physiological mechanisms that might allow for growth of eukaryotic microbes at acid extremes. To this end, we are isolating phylogenetically diverse protists in order to characterize and compare ion-transporting ATPases from cultured acidophiles with those from neutrophilic counterparts. 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subjects | Acidophiles Acids Adenosine triphosphatases Adenosine Triphosphatases - isolation & purification Analysis Biodiversity Biofilms Biological diversity Cell membranes Environmental aspects Euglena Eukaryotes Eukaryotic cells Freshwater Fungi Genes Genes, rRNA - genetics Genetic aspects Genetic research Genomes Hydrogen-Ion Concentration ion transport Likelihood Functions Marine biology Microbial populations Microbiology Microorganisms Outcomes of Genome-Genome Interactions: Proceedings of a Workshop Sponsored by the Center for Advanced Studies in the Space Life Sciences at the MBL 1 to 3 May 2002 Phylogeny Physiological aspects Protista Rivers Spain |
title | From Genes to Genomes: Beyond Biodiversity in Spain's Rio Tinto |
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