Interactions between snow chemistry, mercury inputs and microbial population dynamics in an Arctic snowpack.

We investigated the interactions between snowpack chemistry, mercury (Hg) contamination and microbial community structure and function in Arctic snow. Snowpack chemistry (inorganic and organic ions) including mercury (Hg) speciation was studied in samples collected during a two-month field study in...

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Autores principales:	Catherine Larose, Emmanuel Prestat, Sébastien Cecillon, Sibel Berger, Cédric Malandain, Delina Lyon, Christophe Ferrari, Dominique Schneider, Aurélien Dommergue, Timothy M Vogel
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/405c6e6897cf4122861f0dfa6c09f333
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spelling	oai:doaj.org-article:405c6e6897cf4122861f0dfa6c09f3332021-11-18T08:44:55ZInteractions between snow chemistry, mercury inputs and microbial population dynamics in an Arctic snowpack.1932-620310.1371/journal.pone.0079972https://doaj.org/article/405c6e6897cf4122861f0dfa6c09f3332013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24282515/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203We investigated the interactions between snowpack chemistry, mercury (Hg) contamination and microbial community structure and function in Arctic snow. Snowpack chemistry (inorganic and organic ions) including mercury (Hg) speciation was studied in samples collected during a two-month field study in a high Arctic site, Svalbard, Norway (79 °N). Shifts in microbial community structure were determined by using a 16S rRNA gene phylogenetic microarray. We linked snowpack and meltwater chemistry to changes in microbial community structure by using co-inertia analyses (CIA) and explored changes in community function due to Hg contamination by q-PCR quantification of Hg-resistance genes in metagenomic samples. Based on the CIA, chemical and microbial data were linked (p = 0.006) with bioavailable Hg (BioHg) and methylmercury (MeHg) contributing significantly to the ordination of samples. Mercury was shown to influence community function with increases in merA gene copy numbers at low BioHg levels. Our results show that snowpacks can be considered as dynamic habitats with microbial and chemical components responding rapidly to environmental changes.Catherine LaroseEmmanuel PrestatSébastien CecillonSibel BergerCédric MalandainDelina LyonChristophe FerrariDominique SchneiderAurélien DommergueTimothy M VogelPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 11, p e79972 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Catherine Larose Emmanuel Prestat Sébastien Cecillon Sibel Berger Cédric Malandain Delina Lyon Christophe Ferrari Dominique Schneider Aurélien Dommergue Timothy M Vogel Interactions between snow chemistry, mercury inputs and microbial population dynamics in an Arctic snowpack.
description	We investigated the interactions between snowpack chemistry, mercury (Hg) contamination and microbial community structure and function in Arctic snow. Snowpack chemistry (inorganic and organic ions) including mercury (Hg) speciation was studied in samples collected during a two-month field study in a high Arctic site, Svalbard, Norway (79 °N). Shifts in microbial community structure were determined by using a 16S rRNA gene phylogenetic microarray. We linked snowpack and meltwater chemistry to changes in microbial community structure by using co-inertia analyses (CIA) and explored changes in community function due to Hg contamination by q-PCR quantification of Hg-resistance genes in metagenomic samples. Based on the CIA, chemical and microbial data were linked (p = 0.006) with bioavailable Hg (BioHg) and methylmercury (MeHg) contributing significantly to the ordination of samples. Mercury was shown to influence community function with increases in merA gene copy numbers at low BioHg levels. Our results show that snowpacks can be considered as dynamic habitats with microbial and chemical components responding rapidly to environmental changes.
format	article
author	Catherine Larose Emmanuel Prestat Sébastien Cecillon Sibel Berger Cédric Malandain Delina Lyon Christophe Ferrari Dominique Schneider Aurélien Dommergue Timothy M Vogel
author_facet	Catherine Larose Emmanuel Prestat Sébastien Cecillon Sibel Berger Cédric Malandain Delina Lyon Christophe Ferrari Dominique Schneider Aurélien Dommergue Timothy M Vogel
author_sort	Catherine Larose
title	Interactions between snow chemistry, mercury inputs and microbial population dynamics in an Arctic snowpack.
title_short	Interactions between snow chemistry, mercury inputs and microbial population dynamics in an Arctic snowpack.
title_full	Interactions between snow chemistry, mercury inputs and microbial population dynamics in an Arctic snowpack.
title_fullStr	Interactions between snow chemistry, mercury inputs and microbial population dynamics in an Arctic snowpack.
title_full_unstemmed	Interactions between snow chemistry, mercury inputs and microbial population dynamics in an Arctic snowpack.
title_sort	interactions between snow chemistry, mercury inputs and microbial population dynamics in an arctic snowpack.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/405c6e6897cf4122861f0dfa6c09f333
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Interactions between snow chemistry, mercury inputs and microbial population dynamics in an Arctic snowpack.

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