A5032989997- Mycorrhizal Fungi and Plant Interactions
- Forest Ecology and Biodiversity Studies
- Soil Carbon and Nitrogen Dynamics
- Lichen and fungal ecology
- Plant Pathogens and Fungal Diseases
- Microbial Community Ecology and Physiology
- Forest Management and Policy
- Historical Studies and Socio-cultural Analysis
- Medieval European Literature and History
- Mercury impact and mitigation studies
- Heavy metals in environment
- Peatlands and Wetlands Ecology
- Nematode management and characterization studies
- Forest Insect Ecology and Management
- Renaissance Literature and Culture
- Medieval and Early Modern Justice
- European Political History Analysis
- French Urban and Social Studies
- Plant-Microbe Interactions and Immunity
- Mine drainage and remediation techniques
- Legume Nitrogen Fixing Symbiosis
- Ecology and Vegetation Dynamics Studies
- Microfluidic and Bio-sensing Technologies
- Cell Image Analysis Techniques
- Studies on Chitinases and Chitosanases
University of Minnesota
2019-2024
Lund University
2023-2024
Université de Lorraine
2018-2023
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2017-2023
Interactions Arbres-Microorganismes
2018-2023
Laboratoire Chrono-Environnement
2014-2023
University of Minnesota, Duluth
2022-2023
Université de Bourgogne
2015-2017
L'Hôpital Nord Franche-Comté
2016-2017
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...
Abstract Fungal mycelium is increasingly recognized as a central component of soil biogeochemical cycling, yet our current understanding the ecological controls on fungal necromass decomposition limited to single sites and vegetation types. By deploying common substrates in temperate oak savanna hardwood forest midwestern USA, we assessed generality rate at which high‐ low‐quality decomposes; further, investigated how decomposer ‘necrobiome’ varies both across within under types dominated by...
ABSTRACT Microbial necromass contributes significantly to both soil carbon (C) persistence and ecosystem nitrogen (N) availability, but quantitative estimates of C N movement from into soils decomposer communities are lacking. Additionally, while melanin is known slow fungal decomposition, how it influences microbial acquisition as well elemental release remains unclear. Here, we tracked decomposition isotopically labeled low high measured 13 15 accumulation in surrounding over 77 d a...
Summary Ectomycorrhizal (EcM) fungi play a crucial role in the mineral nitrogen (N) nutrition of their host trees. While it has been proposed that several EcM species also mobilize organic N, studies reporting ability to degrade N‐containing polymers, such as chitin, remain scarce. Here, we assessed capacity representative collection 16 acquire 15 N from N‐chitin. In addition, combined genomics and transcriptomics identify pathways involved exogenous chitin degradation between these fungal...
High-throughput sequencing has become a prominent tool to assess plant-associated microbial diversity. Still, some technical challenges remain in characterising these communities, notably due plant and fungal DNA co-amplification. Fungal-specific primers, Peptide Nucleic Acid (PNA) clamps, or adjusting PCR conditions are approaches limit contamination. However, systematic comparison of factors their interactions, which could contamination the study mycobiota, is still lacking. Here, three...
Changes in temperature and rainfall regimes will have significant yet potentially contrasting impacts on rates of soil organic matter (SOM) decomposition. To assess how a combined stress treatment warming drought the decomposition fungal necromass - fast cycling pool we incubated Hyaloscypha bicolor under both ambient altered conditions (air +3.3C ~40% reduced rainfall) at B4Warmed experiment Minnesota, USA. We conducted two multi-week incubations, one assessing mass loss microbial community...
Soil organic matter represents the largest active reservoir of carbon in terrestrial ecosystems, playing a critical role atmospheric capture and climate change mitigation. Recent studies have demonstrated that mycelial residues, also known as fungal necromass, contribute significantly to necromass stocks soils. While magnitude distribution are increasingly well documented, processes driving their formation remain poorly understood. Specifically, transformation recently senesced residues into...
Soil microbial biodiversity studies commonly rely on molecular datasets from communities extracted their natural contexts. While immensely important for many research questions, this can lead to artefacts such as falsely interpreting interactions where organisms were strongly spatially separated in the soil habitat, and difficulties differentiating active passive or dormant organisms.We developed a way overcome some of problems extraction steps: Microfluidic chips, transparent micromodels...
Understanding the post-senescent fate of fungal mycelium is critical to accurately quantifying forest carbon and nutrient cycling, but how this organic matter source decomposes in wood remains poorly studied. In study, we compared decomposition dead biomass (a.k.a. necromass) two species, Mortierella elongata Meliniomyces bicolor, paired soil plots a boreal northern Minnesota, USA. Mass loss was quantified at four time points over an 8-week incubation richness composition communities...
Recent studies have highlighted that dead fungal mycelium represents an important fraction of soil carbon (C) and nitrogen (N) inputs stocks. Consequently, identifying the microbial communities ecological factors govern decomposition necromass will provide critical insight into how organic matter (OM) affects forest C nutrient cycles. Here, we examined colonising during a multiyear experiment in boreal forest, which included incubation bags with different mesh sizes to manipulate both plant...
Abstract Despite growing interest in fungal necromass decomposition due to its importance soil carbon retention, whether a consistent group of microorganisms is associated with decomposing remains unresolved. Here, we synthesize knowledge on the composition bacterial and communities present from variety species, geographic locations, habitats, incubation times. We found that there core both genera (i.e. necrobiome), although specific size depended definition. Based metric included microbial...
Fungal succession in rotting wood shows a surprising abundance of ectomycorrhizal (EM) fungi during the late decomposition stages. To better understand links between EM and saprotrophic fungi, we investigated potential capacities fungus Paxillus involutus to mobilize nutrients from necromass Postia placenta, rot fungus, transfer these elements its host tree. In this aim, used pure cultures P. presence labelled (15 N/13 C) as nutrient source, monoxenic mycorrhized pine experiment composed...
Microbial necromass is increasingly recognized as an important fast-cycling component of the long-term carbon present in soils. To better understand how fungi and bacteria individually contribute to decomposition fungal necromass, three particle sizes (>500, 250-500, <250 μm) Hyaloscypha bicolor were incubated laboratory microcosms inoculated with individual strains two bacteria. Decomposition was assessed after 15 28 days via loss, microbial respiration, changes pH, water content,...
Summary Dead fungal mycelium (necromass) represents a critical component of soil carbon (C) and nutrient cycles. Assessing how the microbial communities associated with decomposing necromass change as global temperatures rise will help in determining these belowground organic matter inputs contribute to ecosystem responses. In this study, we characterized structure bacterial multiple types decaying mycorrhizal incubated within mesh bags across 9°C whole temperature enhancement boreal...