Surprising prokaryotic and eukaryotic diversity, community structure and biogeography of Ethiopian soda lakes.

Soda lakes are intriguing ecosystems harboring extremely productive microbial communities in spite of their extreme environmental conditions. This makes them valuable model systems for studying the connection between community structure and abiotic parameters such as pH and salinity. For the first t...

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Autores principales:	Anders Lanzén, Addis Simachew, Amare Gessesse, Dominika Chmolowska, Inge Jonassen, Lise Øvreås
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/664893d31de3408e8a2bf66f602f1a93
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spelling	oai:doaj.org-article:664893d31de3408e8a2bf66f602f1a932021-11-18T08:57:38ZSurprising prokaryotic and eukaryotic diversity, community structure and biogeography of Ethiopian soda lakes.1932-620310.1371/journal.pone.0072577https://doaj.org/article/664893d31de3408e8a2bf66f602f1a932013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24023625/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Soda lakes are intriguing ecosystems harboring extremely productive microbial communities in spite of their extreme environmental conditions. This makes them valuable model systems for studying the connection between community structure and abiotic parameters such as pH and salinity. For the first time, we apply high-throughput sequencing to accurately estimate phylogenetic richness and composition in five soda lakes, located in the Ethiopian Rift Valley. The lakes were selected for their contrasting pH, salinities and stratification and several depths or spatial positions were covered in each lake. DNA was extracted and analyzed from all lakes at various depths and RNA extracted from two of the lakes, analyzed using both amplicon- and shotgun sequencing. We reveal a surprisingly high biodiversity in all of the studied lakes, similar to that of freshwater lakes. Interestingly, diversity appeared uncorrelated or positively correlated to pH and salinity, with the most "extreme" lakes showing the highest richness. Together, pH, dissolved oxygen, sodium- and potassium concentration explained approximately 30% of the compositional variation between samples. A diversity of prokaryotic and eukaryotic taxa could be identified, including several putatively involved in carbon-, sulfur- or nitrogen cycling. Key processes like methane oxidation, ammonia oxidation and 'nitrifier denitrification' were also confirmed by mRNA transcript analyses.Anders LanzénAddis SimachewAmare GessesseDominika ChmolowskaInge JonassenLise ØvreåsPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 8, p e72577 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Anders Lanzén Addis Simachew Amare Gessesse Dominika Chmolowska Inge Jonassen Lise Øvreås Surprising prokaryotic and eukaryotic diversity, community structure and biogeography of Ethiopian soda lakes.
description	Soda lakes are intriguing ecosystems harboring extremely productive microbial communities in spite of their extreme environmental conditions. This makes them valuable model systems for studying the connection between community structure and abiotic parameters such as pH and salinity. For the first time, we apply high-throughput sequencing to accurately estimate phylogenetic richness and composition in five soda lakes, located in the Ethiopian Rift Valley. The lakes were selected for their contrasting pH, salinities and stratification and several depths or spatial positions were covered in each lake. DNA was extracted and analyzed from all lakes at various depths and RNA extracted from two of the lakes, analyzed using both amplicon- and shotgun sequencing. We reveal a surprisingly high biodiversity in all of the studied lakes, similar to that of freshwater lakes. Interestingly, diversity appeared uncorrelated or positively correlated to pH and salinity, with the most "extreme" lakes showing the highest richness. Together, pH, dissolved oxygen, sodium- and potassium concentration explained approximately 30% of the compositional variation between samples. A diversity of prokaryotic and eukaryotic taxa could be identified, including several putatively involved in carbon-, sulfur- or nitrogen cycling. Key processes like methane oxidation, ammonia oxidation and 'nitrifier denitrification' were also confirmed by mRNA transcript analyses.
format	article
author	Anders Lanzén Addis Simachew Amare Gessesse Dominika Chmolowska Inge Jonassen Lise Øvreås
author_facet	Anders Lanzén Addis Simachew Amare Gessesse Dominika Chmolowska Inge Jonassen Lise Øvreås
author_sort	Anders Lanzén
title	Surprising prokaryotic and eukaryotic diversity, community structure and biogeography of Ethiopian soda lakes.
title_short	Surprising prokaryotic and eukaryotic diversity, community structure and biogeography of Ethiopian soda lakes.
title_full	Surprising prokaryotic and eukaryotic diversity, community structure and biogeography of Ethiopian soda lakes.
title_fullStr	Surprising prokaryotic and eukaryotic diversity, community structure and biogeography of Ethiopian soda lakes.
title_full_unstemmed	Surprising prokaryotic and eukaryotic diversity, community structure and biogeography of Ethiopian soda lakes.
title_sort	surprising prokaryotic and eukaryotic diversity, community structure and biogeography of ethiopian soda lakes.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/664893d31de3408e8a2bf66f602f1a93
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Surprising prokaryotic and eukaryotic diversity, community structure and biogeography of Ethiopian soda lakes.

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