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Rizlan Bernier-Latmani

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Related publications (125)

Page 3 of 7

Active sulfur cycling in the terrestrial deep subsurface

Rizlan Bernier-Latmani, Manon Frutschi, Emma Bell

The deep terrestrial subsurface remains an environment where there is limited understanding of the extant microbial metabolisms. At Olkiluoto, Finland, a deep geological repository is under construction for the final storage of spent nuclear fuel. It is th ...

2020

Interplay of S and As in Mekong Delta sediments during redox oscillations

Rizlan Bernier-Latmani

The cumulative effects of periodic redox cycling on the mobility of As, Fe, and S from alluvial sediment to groundwater were investigated in bioreactor experiments. Two particular sediments from the alluvial floodplain of the Mekong Delta River were invest ...

2019

Speciation of naturally-accumulated uranium in an organic-rich soil of an alpine region (Switzerland)

Rizlan Bernier-Latmani

Elsevier2010

Binding of silver nanoparticles to bacterial proteins depends on surface modifications and inhibits enzymatic activity

Rizlan Bernier-Latmani, Alexandre de Titta, Jan Dobias

2010

Biosensor-aided isolation of anaerobic arsenic-methylating bacteria from soil

Rizlan Bernier-Latmani, Karin Lederballe Meibom, Hugo Sallet, Nicolas Louis Maurice Jacquemin

Microbial methylation of arsenic impacts both the toxicity and fate of this environmental contaminant, and is an important component of its biogeochemical cycle. This transformation occurs in flooded paddy fields where soil microorganisms can produce dimet ...

Oxford University Press2025

The genome of the Gram-positive, metal- and sulfate-reducing bacterium Desulfotomaculum reducens strain MI-1

Rizlan Bernier-Latmani, Thomas Junier

P>Spore-forming, Gram-positive sulfate-reducing bacteria (SRB) represent a group of SRB that dominates the deep subsurface as well as niches in which resistance to oxygen and dessication is an advantage. Desulfotomaculum reducens strain MI-1 is one of the ...

Wiley-Blackwell2010

Investigation of sporulation in the Desulfotomaculum genus: a genomic comparison with the genera Bacillus and Clostridium

Rizlan Bernier-Latmani, Elena Cristina Dalla Vecchia

The genus Desulfotomaculum, belonging to the Firmicutes, comprises strictly anaerobic and endospore-forming bacteria capable of dissimilatory sulfate reduction. These microorganisms are metabolically versatile and are widely distributed in the environment. ...

Blackwell Publishing2014

Pentavalent U reactivity impacts U isotopic fractionation during reduction by magnetite

Rizlan Bernier-Latmani, Barbora Bártová, Luca Loreggian, Zezhen Pan

Meaningful interpretation of U isotope measurements relies on unraveling the impact of reduction mechanisms on the isotopic fractionation. Here, the isotope fractionation of hexavalent U [U(VI)] was investigated during its reductive mineralization by magne ...

2024

Variability in arsenic methylation efficiency across aerobic and anaerobic microorganisms

Rizlan Bernier-Latmani, Arnaud Michel Gelb, Karin Lederballe Meibom, Karen Elda Viacava Romo

Microbially-mediated methylation of arsenic (As) plays an important role in the As biogeochemical cycle, particularly in rice paddy soils where methylated As, generated microbially, is translocated into rice grains. The presence of the arsenite (As(III)) m ...

2020

Colloidal Size and Redox State of Uranium Species in the Porewater of a Pristine Mountain Wetland

Giada Chantal Zünd, Rizlan Bernier-Latmani, Barbora Bártová, Manon Frutschi, Ashley Richards Brown, Gabrielle Dublet

Uranium (U) speciation was investigated in anoxically preserved porewater samples of a natural mountain wetland in Gola di Lago, Ticino, Switzerland. U porewater concentrations ranged from less than 1 mu g/L to tens of mu g/L, challenging the available ana ...

AMER CHEMICAL SOC2019

Nanoscale mechanism of UO2 formation through uranium reduction by magnetite

Rizlan Bernier-Latmani, Thomas La Grange, Barbora Bártová, Zezhen Pan

Uranium (U) is a ubiquitous element in the Earth's crust at similar to 2 ppm. In anoxic environments, soluble hexavalent uranium (U(VI)) is reduced and immobilized. The underlying reduction mechanism is unknown but likely of critical importance to explain ...

Nature Research2020

Uranium speciation and stability after reductive immobilization in sediments

Rizlan Bernier-Latmani, Elena Suvorova Buffat, Harish Veeramani, Jonathan Sharp

It has generally been assumed that the bioreduction of hexavalent uranium in groundwater systems will result in the precipitation of immobile uraninite (UO2). In order to explore the form and stability of uranium immobilized under these conditions, we intr ...

Elsevier2011

Chromate Resistance Mechanisms in Leucobacter chromiiresistens

Rizlan Bernier-Latmani, Elena Suvorova Buffat

Chromate is one of the major anthropogenic contaminants on Earth. Leucobacter chromiiresistens is a highly chromate-resistant strain, tolerating chromate concentrations in LB medium of up to 400 mM. In response to chromate stress, L. chromiiresistens forms ...

AMER SOC MICROBIOLOGY2018

Phylogenetic comparison of Desulfotomaculum species of subgroup 1a and description of Desulfotomaculum reducens sp.nov

Rizlan Bernier-Latmani, Manon Frutschi

A genome and physiological comparison was made of the type strains of Desulfotomaculum species belonging to subgroup 1a and of 'Desulfotomaculum reducens' strain MI-1. Phenotypically, 'Desulfotomaculum reducens' strain MI-1 can be distinguished from the ot ...

Society for General Microbiology2016

The effect of competing electron acceptors on U(VI) reduction by Desulfotomaculum reducens

Rizlan Bernier-Latmani, Elena Suvorova Buffat

Taylor & Francis2010

Products of in situ corrosion of depleted uranium ammunition in Bosnia and Herzegovina soils

Konstantin von Gunten, Rizlan Bernier-Latmani, Barbora Bártová, Yuheng Wang

Hundreds of tons of depleted uranium (DU) ammunition were used in previous armed conflicts in Iraq, Bosnia and Herzegovina, and Serbia/Kosovo. The majority (>90%) of DU penetrators miss their target and, if left in the environment, corrode in these postcon ...

Amer Chemical Soc2016

Direct and Indirect Processes Leading to Uranium(IV) Oxidation

Rizlan Bernier-Latmani

Microbial activity has shown to catalyze the reduction of the soluble and mobile contaminant uranium (VI) to the sparingly soluble, nanoparticulate mineral uraninite (UO2). Many of the oxidants can be formed biologically, and these various redox-active com ...

wiley2011

Characterization of the surfaceome of the metal-reducing bacterium Desulfotomaculum reducens

Rizlan Bernier-Latmani, Elena Suvorova Buffat, Romain Hamelin, Elena Cristina Dalla Vecchia, Diego Chiappe, Paul Pao-Yun Shao

Desulfotomaculum reducens strain MI-1 is a Gram-positive, sulfate-reducing bacterium also capable of reducing Fe(III). Metal reduction in Gram-positive bacteria is poorly understood. Here, we investigated Fe(III) reduction with lactate, a non-fermentable s ...

Frontiers Media SA2014

Mechanism of Reduction of Aqueous U(V)-dpaea and Solid-Phase U(VI)-dpaea Complexes: The Role of Multiheme c-Type Cytochromes

Marinella Mazzanti, Rizlan Bernier-Latmani, Karin Lederballe Meibom, Radmila Faizova, Margaux Camille Andréa Molinas

The biological reduction of soluble U(VI) complexes to form immobile U(IV) species has been proposed to remediate contaminated sites. It is well established that multiheme c-type cytochromes (MHCs) are key mediators of electron transfer to aqueous phase U( ...

2023

Biogeography of microbial bile acid transformations along the murine gut

Rizlan Bernier-Latmani, Laure Menin, Solenne Anne Marie Marion, Lyne Desharnais

Bile acids, which are synthesized from cholesterol by the liver, are chemically transformed along the intestinal tract by the gut microbiota, and the products of these transformations signal through host receptors, affecting overall host health. These tran ...

AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC2020