A5068690371- Mycorrhizal Fungi and Plant Interactions
- Plant nutrient uptake and metabolism
- Plant-Microbe Interactions and Immunity
- Plant Pathogens and Fungal Diseases
- Legume Nitrogen Fixing Symbiosis
- Plant tissue culture and regeneration
- TiO2 Photocatalysis and Solar Cells
- Plant Pathogenic Bacteria Studies
- Fungal Biology and Applications
- Bacteriophages and microbial interactions
- Forest Ecology and Biodiversity Studies
- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
- Copper-based nanomaterials and applications
- Nanoparticles: synthesis and applications
- Biofuel production and bioconversion
- Entomopathogenic Microorganisms in Pest Control
- Social Policies and Family
- Insect Resistance and Genetics
- Environmental DNA in Biodiversity Studies
- Subterranean biodiversity and taxonomy
- Archaeology and ancient environmental studies
- Advanced Photocatalysis Techniques
- Infant Health and Development
- Infection Control and Ventilation
Centre National de la Recherche Scientifique
2015-2024
Université Claude Bernard Lyon 1
2009-2024
University of Sousse
2024
VetAgro Sup
2019-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2024
University of Sfax
2024
Ecologie Microbienne Lyon
2010-2022
Biomatériaux et Bioingénierie
2010
Biologie Tissulaire et Ingénierie Thérapeutique
2009
University of Kent
1970
Francis Martin and colleagues report genome sequences for 18 species of mycorrhizal fungi a phylogenomic analysis including 32 other fungal genomes. The study identifies cell wall-degradation genes lost in all true ectomycorrhizal and, using gene expression data, finds candidate the establishment symbiosis. To elucidate genetic bases lifestyle evolution, we sequenced new genomes, 13 (ECM), orchid (ORM) ericoid (ERM) species, five saprotrophs, which analyzed along with Ectomycorrhizal have...
Summary Extracellular proteins play crucial roles in the interaction between mycorrhizal fungi and their environment. Computational prediction experimental detection allowed identification of 869 constituting exoproteome Hebeloma cylindrosporum . Small secreted ( SSP s) carbohydrate‐active enzymes CAZ ymes) were two major classes extracellular proteins. Twenty‐eight per cent s by free‐living mycelia five 10 most abundant s. By contrast, 63–75% involved nutrient acquisition secreted. A total...
Abstract Limestone areas across the world develop karstic caves, which are populated by a wide range of macro‐ and microorganisms. Many these caves display Paleolithic art or outstanding speleothems, in last century they have been subjected to anthropization due touristic management intense human frequentation. Despite their cultural importance associated conservation issues, impact on cave biodiversity is not known. Here, we show that with specific biota modifications. We compared diversity...
Abstract Nanostructured TiO 2 ‐Ag composite coatings are deposited by direct liquid injection metal‐organic (DLI‐MO) CVD at 683 K in a one‐step process. Silver pivalate (AgPiv) and titanium tetra‐ iso ‐propoxide (TTIP) used as Ag Ti molecular precursors, respectively. Metallic silver nanoparticles co‐deposited with anatase on stainless steel, glass, silicon wafers. The particles uniformly embedded the oxide matrix through entire film thickness. influence of growth conditions, including...
Through a mutualistic relationship with woody plant roots, ectomycorrhizal fungi provide growth-limiting nutrients, including inorganic phosphate (Pi), to their host. Reciprocal trades occur at the Hartig net, which is symbiotic interface of ectomycorrhizas where two partners are symplasmically isolated. Fungal Pi must be exported interface, but proteins facilitating this transfer unknown. In present study, we combined transcriptomic, microscopy, whole physiology, X-ray fluorescence mapping,...
Abstract The permanent contact between the nipple part of pacifiers and oral microflora offers ideal conditions for development biofilms. This study assessed microbial contamination on surface 25 used pacifier nipples provided by day‐care centers. Nine were made silicone 16 latex. biofilm was quantified using direct staining microscopic observations followed scraping microorganism counting. presence a confirmed 80% studied. mature 36% them. Latex more contaminated than ones. two main genera...
Summary To clarify the early molecular interaction between ectomycorrhizal partners, we performed a RNA‐Seq study of transcriptome reprogramming basidiomycete Hebeloma cylindrosporum before symbiotic structure differentiation with Pinus pinaster . Mycorrhiza was studied for comparison. By reference to asymbiotic mycelium, 47 and 46 genes were specifically upregulated over fivefold ( p ≤ 0.05) upon rhizosphere colonization root adhesion respectively. Other 45 throughout interaction, from...
Anthropization of Palaeolithic caves open for tourism may favour collembola invasion and result in the formation black stains attributed to pigmented fungi. However, ecological processes underpinning stain are not fully understood. Here, we tested hypotheses that from Apse room Lascaux Cave display a specific microbiota enriched fungi, thriving on have potential consume disseminate these Metabarcoding showed neighbouring unstained parts strongly differed, with higher prevalence Ochroconis...
The objective of this study is to evaluate the antibacterial activity a textile product with an antimicrobial finish in real-life hospital conditions. Sixty samples and nonactive controls are tested on garments worn by nurses during their working day. number colony forming units (CFU) significantly lower textiles than ones. Moreover, higher contamination, more contamination was reduced, up 50% reduction.
We used Agrobacterium-mediated insertional mutagenesis to identify genes in the ectomycorrhizal fungus Hebeloma cylindrosporum that are essential for efficient mycorrhiza formation. One of mutants presented a dramatically reduced ability form ectomycorrhizas when grown presence Pinus pinaster. It failed mycorrhizas glucose at 0.5 g liter(-1), condition favorable formation by wild-type strain. However, it formed few was replaced fructose or concentration increased 1 liter(-1). Scanning...
As the management of wheat fungal diseases becomes increasingly challenging, use bacterial agents with biocontrol potential against two major phytopathogens, Fusarium graminearum and Zymoseptoria tritici, may prove to be an interesting alternative conventional pest management. Here, we have shown that dimethylpolysulfide volatiles are ubiquitously predominantly produced by wheat-associated Microbacterium Arthrobacter actinomycetes, displaying antifungal activity both pathogens. By limiting...
Abstract A species-specific region, denoted SpG8-1b allowing hydroxycinnamic acids (HCAs) degradation is important for the transition between two lifestyles (rhizospheric versus pathogenic) of plant pathogen Agrobacterium fabrum. Indeed, HCAs can be either used as trophic resources and/or induced-virulence molecules. The region regulated by transcriptional regulators, namely, HcaR (Atu1422) and Atu1419. In contrast to HcaR, Atu1419 remains so far uncharacterized. high-resolution crystal...
Controlling crown gall in grapevine ( Vitis vinifera L.) caused by the pathogenic bacterium Allorhizobium vitis is a major challenge for global viticulture, as this pathogen highly persistent vineyards once infected. The bacteria can enter plant through open wounds during pruning and then systemically colonize plant. This study aimed at evaluating potential of Paraburkholderia phytofirmans PsJN, beneficial endophytic able to xylem grapevine, same ecological niche A. vitis, control disease....
M-TiO 2 (M = Ag, Cu) nanocomposite layers were grown by pulsed direct liquid injection chemical vapor deposition (DLICVD) on various substrates to produce bactericidal surfaces with long term activity. Monodisperse Ag nanoparticles (NPs) an average size of 5-10 nm are embedded in anatase matrix. A behavior determined the JIS Z 2801 standard test was found for Ag-TiO films ≤ 1 at. % and above. Higher content is not necessary since efficiency already at its maximum (relative activity 100%). By...
Allorhizobium vitis is the primary causal pathogen of grapevine crown gall disease. Because this endophytic bacterium can survive as a systemic latent (symptomless) infection in grapevine, detecting and monitoring its development planta great importance. In plant bacteria studies, plate counting routinely used simple reliable method to evaluate bacterial population level planta. However, isolation techniques are time-consuming present some disadvantages such risk contamination need for fresh...
Agrobacterium fabrum C58 is a plant-associated bacterium that able to denitrify under anoxic conditions. The cluster of denitrification genes harbored by this strain has been well characterized. It includes nir and nor operons encoding nitrite nitric oxide reductases, respectively. However, the reductase involved in nitrate reduction not yet studied little information available on regulators A. C58. In study, we aimed (i) characterize reductase, (ii) determine its role fitness root...
The aim of this study is to isolate and identify autochthonous bacterial strains with insecticidal effect against the larvae tomato moth Helicoverpa armigera. Dead diseased were collected from chili plots in region Gotraniya governorate Kairouan, Tunisia. These used eight named Hr1 Hr8. isolates characterized by macroscopic microscopic observations 16S rRNA sequencing. Hr1, Hr2, Hr4, Hr5, Hr6, Hr8 identified as Bacillus spp., Hr3 Staphylococcussp., Hr7 Enterobacter sp. Their activity was...
Abstract Root-associated Helotiales fungi are increasingly recognized as beneficial fungal partners promoting plant growth under nutrient-limited conditions, particularly in non-mycorrhizal hosts, lacking the ancestral arbuscular mycorrhizal symbiosis. However, ecology of these is still cryptic relatively few lineages have been successfully cultivated from roots for further study. Here, we attempted mass isolation root endophytic to evaluate recovery known plant-beneficial using a tailored...