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Heterotrophic Protists in Hypersaline Microbial Mats and Deep Hypersaline Basin Water Columns

Although hypersaline environments pose challenges to life because of the low water content (water activity), many such habitats appear to support eukaryotic microbes. This contribution presents brief reviews of our current knowledge on eukaryotes of water-column haloclines and brines from Deep Hyper...

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Autores principales: Edgcomb, Virginia P., Bernhard, Joan M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4187137/
https://www.ncbi.nlm.nih.gov/pubmed/25369746
http://dx.doi.org/10.3390/life3020346
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author Edgcomb, Virginia P.
Bernhard, Joan M.
author_facet Edgcomb, Virginia P.
Bernhard, Joan M.
author_sort Edgcomb, Virginia P.
collection PubMed
description Although hypersaline environments pose challenges to life because of the low water content (water activity), many such habitats appear to support eukaryotic microbes. This contribution presents brief reviews of our current knowledge on eukaryotes of water-column haloclines and brines from Deep Hypersaline Anoxic Basins (DHABs) of the Eastern Mediterranean, as well as shallow-water hypersaline microbial mats in solar salterns of Guerrero Negro, Mexico and benthic microbialite communities from Hamelin Pool, Shark Bay, Western Australia. New data on eukaryotic diversity from Shark Bay microbialites indicates eukaryotes are more diverse than previously reported. Although this comparison shows that eukaryotic communities in hypersaline habitats with varying physicochemical characteristics are unique, several groups are commonly found, including diverse alveolates, strameonopiles, and fungi, as well as radiolaria. Many eukaryote sequences (SSU) in both regions also have no close homologues in public databases, suggesting that these environments host unique microbial eukaryote assemblages with the potential to enhance our understanding of the capacity of eukaryotes to adapt to hypersaline conditions.
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spelling pubmed-41871372014-10-27 Heterotrophic Protists in Hypersaline Microbial Mats and Deep Hypersaline Basin Water Columns Edgcomb, Virginia P. Bernhard, Joan M. Life (Basel) Article Although hypersaline environments pose challenges to life because of the low water content (water activity), many such habitats appear to support eukaryotic microbes. This contribution presents brief reviews of our current knowledge on eukaryotes of water-column haloclines and brines from Deep Hypersaline Anoxic Basins (DHABs) of the Eastern Mediterranean, as well as shallow-water hypersaline microbial mats in solar salterns of Guerrero Negro, Mexico and benthic microbialite communities from Hamelin Pool, Shark Bay, Western Australia. New data on eukaryotic diversity from Shark Bay microbialites indicates eukaryotes are more diverse than previously reported. Although this comparison shows that eukaryotic communities in hypersaline habitats with varying physicochemical characteristics are unique, several groups are commonly found, including diverse alveolates, strameonopiles, and fungi, as well as radiolaria. Many eukaryote sequences (SSU) in both regions also have no close homologues in public databases, suggesting that these environments host unique microbial eukaryote assemblages with the potential to enhance our understanding of the capacity of eukaryotes to adapt to hypersaline conditions. MDPI 2013-05-22 /pmc/articles/PMC4187137/ /pubmed/25369746 http://dx.doi.org/10.3390/life3020346 Text en © 2013 by the authors; licensee MDPI, Basel, Switzerland. http://creativecommons.org/licenses/by/3.0/ This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Edgcomb, Virginia P.
Bernhard, Joan M.
Heterotrophic Protists in Hypersaline Microbial Mats and Deep Hypersaline Basin Water Columns
title Heterotrophic Protists in Hypersaline Microbial Mats and Deep Hypersaline Basin Water Columns
title_full Heterotrophic Protists in Hypersaline Microbial Mats and Deep Hypersaline Basin Water Columns
title_fullStr Heterotrophic Protists in Hypersaline Microbial Mats and Deep Hypersaline Basin Water Columns
title_full_unstemmed Heterotrophic Protists in Hypersaline Microbial Mats and Deep Hypersaline Basin Water Columns
title_short Heterotrophic Protists in Hypersaline Microbial Mats and Deep Hypersaline Basin Water Columns
title_sort heterotrophic protists in hypersaline microbial mats and deep hypersaline basin water columns
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4187137/
https://www.ncbi.nlm.nih.gov/pubmed/25369746
http://dx.doi.org/10.3390/life3020346
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