Dimitrios Floudas

ORCID: 0000-0002-6119-2590
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About
Contact & Profiles
Research Areas
  • Mycorrhizal Fungi and Plant Interactions
  • Enzyme-mediated dye degradation
  • Forest Ecology and Biodiversity Studies
  • Fungal Biology and Applications
  • Plant Pathogens and Fungal Diseases
  • Lichen and fungal ecology
  • Fermentation and Sensory Analysis
  • Plant and animal studies
  • Soil Carbon and Nitrogen Dynamics
  • Microbial Metabolism and Applications
  • Biochemical and biochemical processes
  • Lignin and Wood Chemistry
  • Microbial Community Ecology and Physiology
  • Heavy metals in environment
  • Mediterranean and Iberian flora and fauna
  • Peatlands and Wetlands Ecology
  • Slime Mold and Myxomycetes Research
  • Fungal and yeast genetics research
  • Modular Robots and Swarm Intelligence
  • Biocrusts and Microbial Ecology
  • Plant and Fungal Species Descriptions
  • Yeasts and Rust Fungi Studies
  • Forest Insect Ecology and Management
  • Geochemistry and Elemental Analysis
  • Wood and Agarwood Research

Lund University
2015-2024

Clark University
2011-2015

Skåne University Hospital
2015

Wood is a major pool of organic carbon that highly resistant to decay, owing largely the presence lignin. The only organisms capable substantial lignin decay are white rot fungi in Agaricomycetes, which also contains non-lignin-degrading brown and ectomycorrhizal species. Comparative analyses 31 fungal genomes (12 generated for this study) suggest lignin-degrading peroxidases expanded lineage leading ancestor reconstructed as species, then contracted parallel lineages mycorrhizal Molecular...

10.1126/science.1221748 article EN Science 2012-06-28

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...

10.1038/ng.3223 article EN cc-by-nc-sa Nature Genetics 2015-02-23

Significance Wood decay fungi have historically been characterized as either white rot, which degrade all components of plant cell walls, including lignin, or brown leave lignin largely intact. Genomic analyses shown that white-rot species possess multiple lignin-degrading peroxidases (PODs) and expanded suites enzymes attacking crystalline cellulose. To test the adequacy white/brown-rot categories, we analyzed 33 fungal genomes. Some lack PODs, thus resemble brown-rot fungi, but...

10.1073/pnas.1400592111 article EN Proceedings of the National Academy of Sciences 2014-06-23

Agaricus bisporus is the model fungus for adaptation, persistence, and growth in humic-rich leaf-litter environment. Aside from its ecological role, A. has been an important component of human diet over 200 y worldwide cultivation "button mushroom" forms a multibillion dollar industry. We present two genomes, their gene repertoires transcript profiles on compost during mushroom formation. The genomes encode full repertoire polysaccharide-degrading enzymes similar to that wood-decayers....

10.1073/pnas.1206847109 article EN Proceedings of the National Academy of Sciences 2012-10-08

Summary Ectomycorrhizal fungi are thought to have a key role in mobilizing organic nitrogen that is trapped soil matter ( SOM ). However, the extent which ectomycorrhizal decompose and mechanism by they do so remain unclear, considering lost many genes encoding lignocellulose‐degrading enzymes present their saprotrophic ancestors. Spectroscopic analyses transcriptome profiling were used examine mechanisms five species of fungi, representing at least four origins symbiosis, extracted from...

10.1111/nph.13722 article EN cc-by New Phytologist 2015-11-03

Efficient lignin depolymerization is unique to the wood decay basidiomycetes, collectively referred as white rot fungi. Phanerochaete chrysosporium simultaneously degrades and cellulose, whereas closely related species, Ceriporiopsis subvermispora, also depolymerizes but may do so with relatively little cellulose degradation. To investigate basis for selective ligninolysis, we conducted comparative genome analysis of C. subvermispora P. . Genes encoding manganese peroxidase numbered 13 five...

10.1073/pnas.1119912109 article EN Proceedings of the National Academy of Sciences 2012-03-20

Evolution of lignocellulose decomposition was one the most ecologically important innovations in fungi. White-rot fungi Agaricomycetes (mushrooms and relatives) are effective microorganisms degrading both cellulose lignin components woody plant cell walls (PCW). However, precise evolutionary origins poorly understood, largely because certain early-diverging clades its sister group, Dacrymycetes, have yet to be sampled, or been undersampled, comparative genomic studies. Here, we present new...

10.1093/molbev/msv337 article EN Molecular Biology and Evolution 2015-12-10

Many trees form ectomycorrhizal symbiosis with fungi. During symbiosis, the tree roots supply sugar to fungi in exchange for nitrogen, and this process is critical nitrogen carbon cycles forest ecosystems. However, extents which can liberate modify soil organic matter mechanisms by they do so remain unclear since have lost many enzymes litter decomposition that were present their free-living, saprotrophic ancestors. Using time-series spectroscopy transcriptomics, we examined ability of two...

10.1038/s41396-018-0331-6 article EN cc-by The ISME Journal 2018-12-11

The genomes of three representative Polyporales (Bjerkandera adusta, Phlebia brevispora and a member the Ganoderma lucidum complex) were sequenced to expand our knowledge on diversity ligninolytic related peroxidase genes in this Basidiomycota order that includes most wood-rotting fungi. survey was completed by analyzing heme-peroxidase already available seven more species representing antrodia, gelatoporia, core polyporoid phlebioid clades. study confirms absence from manganese (MnP),...

10.3852/13-059 article EN Mycologia 2013-11-01

Abstract Litter decomposing Agaricales play key role in terrestrial carbon cycling, but little is known about their decomposition mechanisms. We assembled datasets of 42 gene families involved plant-cell-wall from seven newly sequenced litter decomposers and 35 other Agaricomycotina members, mostly white-rot brown-rot species. Using sequence similarity phylogenetics, we split the into phylogroups compared composition across nutritional strategies. Subsequently, used Raman spectroscopy to...

10.1038/s41396-020-0667-6 article EN cc-by The ISME Journal 2020-05-07

A major fraction of nitrogen (N) in boreal forest soils is found organic forms associated with soil matter (SOM) and mineral particles. The capacity ectomycorrhizal (ECM) fungal symbionts to access this N debated, considering that these fungi have lost many the genes for decomposing were present their saprotrophic ancestors. To gain a molecular-level understanding N-mining processes ECM fungi, we developed an experimental approach where decomposition studied parallel changes structure...

10.3389/ffgc.2022.934409 article EN cc-by Frontiers in Forests and Global Change 2022-07-22

Dissolved organic matter (DOM) plays a central role in soil carbon (C) dynamics, serving as both substrate for microbial decomposers and source of material stabilised via physical protection molecular aggregates associations with mineral particles. It is well established that microorganisms play key mineral-associated C aggregates; however, their impacts on not clearly understood. Here, we examined the ability an ectomycorrhizal fungus (Paxillus involutus) saprotrophic (a strain...

10.1016/j.soilbio.2024.109473 article EN cc-by Soil Biology and Biochemistry 2024-05-10

The vegetative mycelium of wood decomposing fungi is indeterminate and ever changing over the course their lifetime. When it comes to fruiting bodies, we know that there are stark differences between species in terms how long lasting bodies are, with some appearing, ephemerally, for a short moment season others multiple years. However, mycelium, not well known documented ephemeral body mycelial network same species.In this study, utilized microfluidic chip systems document, classify quantify...

10.5194/egusphere-egu25-21218 preprint EN 2025-03-15

Ditching of peatlands has been used extensively in Scandinavia with the purpose to promote tree growth. Studies show that concentrations dissolved organic matter (DOM) are higher waters exported from ditched compared pristine systems, suggesting ditching may contribute browning observed surface forested regions.After and when trees established, peat will be colonized by ectomycorrhizal (EM) fungi, which supply nutrients. We hypothesize EM-fungi mobilize DOM soil water while mining for...

10.5194/egusphere-egu25-20215 preprint EN 2025-03-15

Biodesign holds the potential for radically increasing sustainability of built environment and our material culture but comes with new challenges. One these is bridging vast differences scale between microbiological processes architecture. We propose that a transcalar design approach, which weaves together nonlinear dependencies using computational tools methodologies through biological generation architectural components, way towards successful implementations. Such were explored in...

10.3390/infrastructures7040050 article EN cc-by Infrastructures 2022-04-01

Summary The genus Amanita encompasses both symbiotic, ectomycorrhizal fungi and asymbiotic litter decomposers; all species are derived from ancestors. Symbiotic no longer able to degrade plant cell walls. carbohydrate esterases family 1 ( CE 1s) is a diverse group of enzymes involved in carbon metabolism, including decomposition storage. genes the A . muscaria appear diverged other fungal homologues, more similar 1s bacteria, suggesting horizontal gene transfer HGT ) event. In order test...

10.1111/nph.13140 article EN New Phytologist 2014-11-18
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