Role of different microbial compartments (biofilms, suspended matters, surface sediment) and some of them components (bacterial cells, extracellular polymeric substances and biominerals) on HgII methylation and reduction

• Main Author: Remy, Paul-Philippe
• Other Authors: Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), Institut de Chimie - CNRS Chimie (INC-CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Université de Lorraine, Frédéric Jorand
• Format: Doctoral or Postdoctoral Thesis
• Language: French
• Published: HAL CCSD 2015
• Subjects: Mercury methylation; Thermokarst pond; Biofilm; Iron reducing bacteria; Sulfate reducing bacteria; Green rust; Méthylation du mercure; Mare thermokarstique; Bactéries ferriréductrices; Bactéries sulfatoréductrices; Rouille verte; Mercure-Méthylation; Étangs; Biofilms; Bactéries sulfato-réductrices; Fer > Réduction par les bactéries; [SDV.BBM]Life Sciences [q-bio]/Biochemistry; Molecular Biology; Canada; Nunavik; Verte; Subarctic; subarctique*; Thermokarst
• Online Access: https://hal.univ-lorraine.fr/tel-01751715; https://hal.univ-lorraine.fr/tel-01751715/document; https://hal.univ-lorraine.fr/tel-01751715/file/DDOC_T_2015_0076_REMY.pdf

Monomethylmercury formation, the neurotoxic form of mercury, is mainly linked to anaerobic microbial activity. In order to assess the relative contribution of several microbial compartments (biofilms, raw water and sediment) we evaluated methylation of samples from ponds of temperate area (Lorraine,...