• Publications
  • Influence
The desert of Tataouine: an extreme environment that hosts a wide diversity of microorganisms and radiotolerant bacteria.
The phylogenetic diversity of prokaryotic communities exposed to arid conditions in the hot desert of Tataouine (south Tunisia) was estimated with a combination of a culture and - molecular-based analysis, revealing the presence of species related to Bacteria and Archaea. Expand
A Complex Small RNA Repertoire Is Generated by a Plant/Fungal-Like Machinery and Effected by a Metazoan-Like Argonaute in the Single-Cell Human Parasite Toxoplasma gondii
A puzzling patchwork of silencing processor and effector proteins from plant, fungal and metazoan origin accounts for the production and action of an unsuspected variety of small RNAs in the single-cell parasite Toxoplasma and possibly in other apicomplexans. Expand
Taxonomic characterization of Ochrobactrum sp. isolates from soil samples and wheat roots, and description of Ochrobactrum tritici sp. nov. and Ochrobactrum grignonense sp. nov.
A large collection of bacterial strains, immunotrapped from soil and from the wheat rhizoplane, was subjected to polyphasic taxonomy by examining various pheno- and genotypic parameters, indicating that REP group K strains represent a new species. Expand
Host cell subversion by Toxoplasma GRA16, an exported dense granule protein that targets the host cell nucleus and alters gene expression.
This work identifies GRA16 as a dense granule protein that is exported through the PV membrane and reaches the host cell nucleus, where it positively modulates genes involved in cell-cycle progression and the p53 tumor suppressor pathway. Expand
A Tale of Two Oxidation States: Bacterial Colonization of Arsenic-Rich Environments
In-depth exploration of the genome of the β-proteobacterium Herminiimonas arsenicoxydans with regard to physiology, genetics, and proteomics revealed that it possesses heretofore unsuspected mechanisms for coping with arsenic. Expand
Ramlibacter tataouinensis gen. nov., sp. nov., and Ramlibacter henchirensis sp. nov., cyst-producing bacteria isolated from subdesert soil in Tunisia.
Phylogenetic analyses of the rrs sequences of the two strains showed that they do not constitute a robust clade at the genus level with any previously described bacteria and that they are a deep branch of a clade also grouping the genera Acidovorax and Hydrogenophaga within the beta-Proteobacteria. Expand
P2CS: a two-component system resource for prokaryotic signal transduction research
P2CS provides a complete overview of information on TCSs, including predicted candidate proteins and probable proteins, which need further curation/validation, and constituted and searched an ORFeome, which improves the recovery of TCS proteins compared to searches on the equivalent proteomes. Expand
Complete Genome Sequence of a Beneficial Plant Root-Associated Bacterium, Pseudomonas brassicacearum
The first genome sequence of the beneficial plant-associated bacterium Pseudomonas brassicacearum is reported, which consists of one chromosome equipped with a repertoire of factors beneficial for plant growth. Expand
Biologically controlled precipitation of calcium phosphate by Ramlibacter tataouinensis
Ramlibacter tataouinensis ,a h-proteobacterium strain isolated from an arid environment, was cultured on a solid culture medium supplemented with calcium. Optical and transmission electronExpand
Alliance of Proteomics and Genomics to Unravel the Specificities of Sahara Bacterium Deinococcus deserti
The alliance of proteomics and genomics high-throughput techniques allowed identification of 15 unpredicted genes and reversal of incorrectly predicted orientation of 11 genes, and identification in D. deserti of supplementary genes involved in manganese import. Expand