A5049457958- Mycorrhizal Fungi and Plant Interactions
- Forest Ecology and Biodiversity Studies
- Plant Pathogens and Fungal Diseases
- Soil Carbon and Nitrogen Dynamics
- Microbial Community Ecology and Physiology
- Fungal Biology and Applications
- Ecology and Vegetation Dynamics Studies
- Lichen and fungal ecology
- Forest Insect Ecology and Management
- Agriculture and Rural Development Research
- Forest Management and Policy
- African Botany and Ecology Studies
- Plant-Microbe Interactions and Immunity
- French Urban and Social Studies
- Plant Pathogens and Resistance
- Plant Parasitism and Resistance
- Legume Nitrogen Fixing Symbiosis
- Horticultural and Viticultural Research
- Forest Biomass Utilization and Management
- Enzyme-mediated dye degradation
- Invertebrate Taxonomy and Ecology
- Plant and fungal interactions
- Species Distribution and Climate Change
- Botany and Plant Ecology Studies
- Environmental DNA in Biodiversity Studies
Interactions Arbres-Microorganismes
2015-2024
Université de Lorraine
2015-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2016-2024
Département Environnement et Agronomie
2022
Laboratoire Agronomie et Environnement
2022
Labex ARBRE
2014-2020
Ecologie et Ecophysiologie Forestières
2007-2015
Mathématiques et Informatique Appliquées
2013
Mathématiques et Informatique Appliquées du Génome à l'Environnement
2013
AgroParisTech
2010
The fungus Laccaria bicolor — seen in its above-ground fruiting body presence as the 'bicoloured deceiver' mushroom lives symbiotically on roots of trees. Its genome has now been sequenced, and key features characterized by transcript profiling. study throws light mechanism mycorrhizal symbiosis, union soil fungi that is vital important to plant productivity. And it will be keen interest evolutionary biologists for revelations about plant–fungus interactions shaping genomes over time....
* Soil fungi play a major role in ecological and biogeochemical processes forests. Little is known, however, about the structure richness of different fungal communities distribution functional groups (pathogens, saprobes symbionts). Here, we assessed diversity six forest soils using tag-encoded 454 pyrosequencing nuclear ribosomal internal transcribed spacer-1 (ITS-1). No less than 166 350 ITS reads were obtained from all samples. In each soil sample (4 g), approximately 30 000 recovered,...
Abstract Soil organisms have an important role in aboveground community dynamics and ecosystem functioning terrestrial ecosystems. However, most studies considered soil biota as a black box or focussed on specific groups, whereas little is known about entire networks. Here we show that during the course of nature restoration abandoned arable land compositional shift biota, preceded by tightening belowground networks, corresponds with enhanced efficiency carbon uptake. In mid- long-term field...
The genome of the Périgord black truffle Tuber melanosporum Vittad., a gourmet delicacy that grows symbiotically on roots European oak, has been sequenced. This is largest and most complex fungal so far unusually gene-poor, but rich in mobile genetic elements known as transposons. Comparison with sequence Laccaria bicolor, another ectomycorrhizal symbiotic fungus, reveals contrasting gene sets reflecting two different molecular toolkits have evolved independently to fit root symbiont...
Mycorrhizal fungi are mutualists that play crucial roles in nutrient acquisition terrestrial ecosystems. symbioses arose repeatedly across multiple lineages of Mucoromycotina, Ascomycota, and Basidiomycota. Considerable variation exists the capacity mycorrhizal to acquire carbon from soil organic matter. Here, we present a combined analysis 135 fungal genomes 73 saprotrophic, endophytic pathogenic species, 62 including 29 new genomes. This study samples ecologically dominant guilds for which...
Several reports have highlighted that forest soil samples are more phylum-rich than agricultural samples. However, little is known about the structure and richness of bacterial communities in soil. Using high-throughput next generation 454 pyrosequencing, we deeply investigated diversity colonizing oak rhizosphere niche surrounding From three spatially independent samples, obtained over 300 000 partial 16S rRNA gene sequences. The most abundant groups were Acidobacteria, Proteobacteria...
High-throughput RNA sequencing offers broad opportunities to explore the Earth virome. Mining 5,150 diverse metatranscriptomes uncovered >2.5 million virus contigs. Analysis of >330,000 RNA-dependent polymerases (RdRPs) shows that this expansion corresponds a 5-fold increase known diversity. Gene content analysis revealed multiple protein domains previously not found in viruses and implicated virus-host interactions. Extended RdRP phylogeny supports monophyly five established phyla reveals...
Arbuscular mycorrhizal (AM) symbiosis is an association between obligate biotrophic fungi and more than 80% of land plants. During the pre-symbiotic phase, host plant releases critical metabolites necessary to trigger fungal growth root colonization. We describe isolation a semipurified fraction from exudates carrot hairy roots, highly active on germinating spores Gigaspora gigantea, G. rosea, margarita. This fraction, isolated basis its activity hyphal branching, contains factor (one or...
In temperate ecosystems, acidic forest soils are among the most nutrient-poor terrestrial environments. this context, long-term differentiation of into horizons may impact assembly and functions soil microbial communities. To gain a more comprehensive understanding ecology functional potentials these communities, suite analyses including comparative metagenomics was applied on independent samples from spruce plantation (Breuil-Chenue, France). The objectives were to assess whether decreasing...
Abstract The impacts of plant species on the microbial communities and physico-chemical characteristics soil are well documented for many herbs, grasses legumes but much less so tree species. Here, we investigate by rRNA ITS amplicon sequencing diversity microorganisms from three domains life (Archaea, Bacteria Eukaryota:Fungi) in samples taken forest experimental site Breuil-Chenue (France). We discovered significant differences abundance, composition structure associated with two...
The diversity of fungi along environmental gradients has been little explored in contrast to plants and animals. Consequently, factors influencing the composition fungal assemblages are poorly understood. aim this study was determine whether leaf root-associated vary with elevation investigate potential explanatory variables. High-throughput sequencing Internal Transcribed Spacer 1 region used explore three gradients, located French mountainous regions. Beech forest selected as a system...
Abstract Plant genetic variation, through its phenotypic display, can determine the composition of below ground microbial communities. Variation within a species is increasingly acknowledged to have substantial ecological consequences, particularly trophic cascades. We hypothesized that intraspecific genotypic variation tree host might impact phylogenetic rhizospheric communities, by favouring particular clades, be further reflected in ecosystem process rates. tested whether Pinus pinaster...
In forest soils, ectomycorrhizal and saprotrophic Agaricales differ in their strategies for carbon acquisition, but share common gene families encoding multi-copper oxidases (MCOs). These enzymes are involved the oxidation of a variety soil organic compounds. The MCO family fungus Laccaria bicolor is composed 11 genes divided into two distinct subfamilies corresponding to laccases (lcc) sensu stricto (lcc1 lcc9), sharing high sequence homology with coprophilic Coprinopsis cinerea laccase...
Fungi are important actors in ecological processes and trophic webs mangroves. Although saprophytic fungi occurring the intertidal part of mangrove have been well studied, little is known about diversity structure fungal communities this ecosystem or importance functional groups like pathogens mutualists. Using tag-encoded 454 pyrosequencing ITS1, ITS2, nu-ssu-V5 nu-ssu-V7 regions, we studied compared found on marine aerial parts Avicennia marina Rhizophora stylosa trees a New Caledonia. A...
Fungal communities play a key role in ecosystem functioning. However, only little is known about their composition plant roots and the soil of biomass plantations. The goal this study was to analyze fungal biodiversity belowground habitats gain information on strategies by which ectomycorrhizal (ECM) fungi form colonies. In 2-year-old plantation, three different poplar genotypes (Populus × canescens, wildtype two transgenic lines with suppressed cinnamyl alcohol dehydrogenase activity) were...