Publications by Elena Cristina Dalla Vecchia

Growing a 'cosmic beast': observations and simulations of MACS J0717.5+3745

Elena Cristina Dalla Vecchia, Matthieu Schaller, Jean-Paul Richard Kneib, Richard Massey, David Richard Harvey, Matthew Aaron Robertson, Barney Frederick Drake, Mathilde Jauzac

We present a gravitational lensing and X-ray analysis of a massive galaxy cluster and its surroundings. The core of MACS J0717.5+3745 (M(R < 1Mpc) similar to 2 x 10(15) M-circle dot, z = 0.54) is already known to contain four merging components. We show th ...

OXFORD UNIV PRESS2018

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

Metal reduction and sporulation in Desulfotomaculum reducens

Elena Cristina Dalla Vecchia

The genera Desulfotomaculum and Clostridium, belonging to the phylum Firmicutes, comprise Gram-positive, low G+C genomic content, anaerobic, spore- forming bacteria. Desulfotomaculum is a metabolically and environmentally versatile genus capable of growing ...

EPFL2014

Fe(III) reduction during pyruvate fermentation by Desulfotomaculum reducens strain MI-1

Elena Suvorova Buffat, Julien Maillard, Rizlan Bernier-Latmani, Elena Cristina Dalla Vecchia

Desulfotomaculum reducens MI-1 is a Gram-positive, sulfate-reducing bacterium also capable of reducing several metals, among which is Fe(III). Very limited knowledge is available on the potential mechanism(s) of metal reduction among Gram-positive bacteria ...

Wiley-Blackwell2014

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

Elena Suvorova Buffat, Diego Chiappe, Rizlan Bernier-Latmani, Elena Cristina Dalla Vecchia, Romain Hamelin, 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

The response of Desulfotomaculum reducens MI-1 to U(VI) exposure: a transcriptomic study

Rizlan Bernier-Latmani, Elena Cristina Dalla Vecchia

Desulfotomaculum reducens is the first Gram-positive sulfate- and metal-reducing bacterium for which the transcriptomic response to uranium exposure has been evaluated. The genes upregulated during fermentative growth in the presence of U(VI) as compared t ...

Taylor & Francis2011

Non-uraninite products of microbial U(VI) reduction

Elena Suvorova Buffat, Rizlan Bernier-Latmani, Harish Veeramani, Elena Cristina Dalla Vecchia, Jonathan Sharp, Nicholas Wigginton

A promising remediation approach to mitigate subsurface uranium contamination is the stimulation of indigenous bacteria to reduce mobile U(VI) to sparingly soluble U(IV). The product of microbial uranium reduction is often reported as the mineral uraninite ...

2010

U(VI) reduction by spores of Clostridium acetobutylicum

Elena Suvorova Buffat, Rizlan Bernier-Latmani, Harish Veeramani, Elena Cristina Dalla Vecchia, Nicholas Wigginton

Vegetative cells of Clostridium acetobutylicum are known to reduce hexavalent uranium (U(VI)). We investigated the ability of spores of this organism to drive the same reaction. We found that spores were able to remove U(VI) from solution when H, was provi ...

Elsevier2010

U(VI) reduction by Desulfotomaculum reducens

Elena Suvorova Buffat, Rizlan Bernier-Latmani, Manon Frutschi, Elena Cristina Dalla Vecchia, Jonathan Sharp, Nicholas Wigginton

2009