Protistan microbial observatory in the Cariaco Basin, Caribbean. II. Habitat specialization

The ISME Journal
William OrsiSlava S Epstein

Abstract

This is the second paper in a series of three that investigates eukaryotic microbial diversity and taxon distribution in the Cariaco Basin, Venezuela, the ocean's largest anoxic marine basin. Here, we use phylogenetic information, multivariate community analyses and statistical richness predictions to test whether protists exhibit habitat specialization within defined geochemical layers of the water column. We also analyze spatio-temporal distributions of protists across two seasons and two geographic sites within the basin. Non-metric multidimensional scaling indicates that these two basin sites are inhabited by distinct protistan assemblages, an observation that is supported by the minimal overlap in observed and predicted richness of sampled sites. A comparison of parametric richness estimations indicates that protistan communities in closely spaced-but geochemically different-habitats are very dissimilar, and may share as few as 5% of total operational taxonomic units (OTUs). This is supported by a canonical correspondence analysis, indicating that the empirically observed OTUs are organized along opposing gradients in oxidants and reductants. Our phylogenetic analyses identify many new clades at species to class levels, so...Continue Reading

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Citations

Mar 11, 2011·The ISME Journal·V EdgcombS Epstein
Mar 10, 2012·The ISME Journal·William OrsiVirginia Edgcomb
Jan 30, 2014·Molecular Biology and Evolution·Micah DunthornThorsten Stoeck
Aug 1, 2015·Environmental Microbiology Reports·Xavier Triadó-Margarit, Emilio O Casamayor
Jan 17, 2012·Trends in Ecology & Evolution·Holly M BikW Kelley Thomas
Jun 12, 2013·The Journal of Eukaryotic Microbiology·Kathryn J CoyneStephen C Cary
May 8, 2014·The Journal of Eukaryotic Microbiology·Micah DunthornFrédéric Mahé
May 8, 2014·The Journal of Eukaryotic Microbiology·Virginia P Edgcomb, Maria Pachiadaki
Aug 16, 2011·International Journal of Systematic and Evolutionary Microbiology·William OrsiSlava S Epstein
Oct 21, 2014·Environmental Microbiology·Andreas OikonomouThorsten Stoeck
May 23, 2014·FEMS Microbiology Ecology·Wenxue WuPing Sun
Nov 13, 2014·Frontiers in Microbiology·Darren J ParrisFrank J Stewart
Feb 13, 2013·FEMS Microbiology Ecology·Maria J Rodriguez-MoraAndrei Y Chistoserdov
Dec 15, 2015·Environmental Microbiology·Alexis L PasulkaVictoria J Orphan
Oct 1, 2016·The Journal of Eukaryotic Microbiology·Dapeng XuAlan Warren
Jan 9, 2019·The Journal of Eukaryotic Microbiology·Alexis PasulkaDavid A Caron
Mar 26, 2013·FEMS Microbiology Ecology·Carlo BergKlaus Jürgens
Jan 13, 2012·The Journal of Eukaryotic Microbiology·Micah DunthornThorsten Stoeck
Sep 28, 2018·Emerging Topics in Life Sciences·Susannah M PorterLeigh Anne Riedman
Feb 1, 2012·Environmental Microbiology Reports·Janne Soininen
Jun 27, 2019·The ISME Journal·Stijn De SchepperAud Larsen
Feb 6, 2021·Molecular Phylogenetics and Evolution·G LaxA G B Simpson
Mar 16, 2021·Open Biology·Alexei Y KostygovJulius Lukeš

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