A5106225915- Mycorrhizal Fungi and Plant Interactions
- Fungal Biology and Applications
- Forest Ecology and Biodiversity Studies
- Enzyme-mediated dye degradation
- Calpain Protease Function and Regulation
- Plant and fungal interactions
- Lichen and fungal ecology
- Microbial Natural Products and Biosynthesis
- Algal biology and biofuel production
- Microbial Metabolism and Applications
- Silk-based biomaterials and applications
- Fungal and yeast genetics research
- Chromium effects and bioremediation
- Meat and Animal Product Quality
- Plant and animal studies
- Peatlands and Wetlands Ecology
- Plant and Fungal Species Descriptions
Lund University
2013-2020
University of Helsinki
2017-2018
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 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...
Summary Soils in boreal forests contain large stocks of carbon. Plants are the main source this carbon through tissue residues and root exudates. A major part exudates allocated to symbiotic ectomycorrhizal fungi. In return, plant receives nutrients, particular nitrogen from mycorrhizal To capture nitrogen, fungi must at least partly disrupt recalcitrant organic matter–protein complexes within which is embedded. This disruption process poorly characterized. We used spectroscopic analyses...
Abstract The majority of nitrogen in forest soils is found organic matter–protein complexes. Ectomycorrhizal fungi (EMF) are thought to have a key role decomposing and mobilizing from such However, little known about the mechanisms governing these processes, how they regulated by carbon host plant availability more easily available forms sources. Here we used spectroscopic analyses transcriptome profiling examine presence or absence glucose and/or ammonium regulates decomposition litter...
Proteins contribute to a major part of the organic nitrogen (N) in forest soils. This N is mobilized and becomes available trees as result depolymerizing activities symbiotic ectomycorrhizal fungi. The mechanisms by which these fungi depolymerize proteins assimilate released are poorly characterized. Biochemical analysis transcriptome profiling were performed examine proteolytic machinery uptake system basidiomycete Paxillus involutus during assimilation from various protein sources extracts...
Ectomycorrhizal fungi play a key role in mobilizing nutrients embedded recalcitrant organic matter complexes, thereby increasing nutrient accessibility to the host plant. Recent studies have shown that during assimilation of nutrients, ectomycorrhizal fungus Paxillus involutus decomposes using an oxidative mechanism involving Fenton chemistry (Fe(2+) + H2O2 H(+) → Fe(3+) ˙OH H2O), similar brown rot wood-decaying fungi. In such fungi, secreted metabolites are one components drive one-electron...
Fomitopsis pinicola is a species of Polyporales frequently encountered in Nordic temperate and boreal forests. In nature, the fungus causes destructive brown rot wood, colonizing tree trunks often occupied by other Basidiomycota species. We mimicked these species-species interactions introducing F. to five white species, all common saprotrophs Norway spruce. Hyphal mycelial growth various combinations were recorded, while activities lignocellulose-acting CAZymes oxidoreductases followed...
The amounts of carbon allocated to the fungal partner in ectomycorrhizal associations can vary substantially depending on plant growth and soil nutrient conditions, fungus may frequently be confronted with limitations carbon. We used chemical analysis transcriptome profiling examine physiological response Paxillus involutus starvation during axenic cultivation. Carbon induced a decrease biomass. Concomitantly, ammonium, cell wall material (chitin) proteolytic enzymes were released into...
Basidiomycota fungi in the order Polyporales are specified to decomposition of dead wood and woody debris thereby crucial players degradation organic matter cycling carbon forest ecosystems. wood-decaying species comprise both white rot brown fungi, based on their mode decay. While able attack decompose all lignocellulose biopolymers, mainly cause destruction polysaccharides, with minor modification lignin units. The biochemical mechanism decay is still unclear has been proposed include a...
The ectomycorrhizal fungus Paxillus involutus decomposes proteins using a two-step mechanism, including oxidation and proteolysis. Oxidation involves the action of extracellular hydroxyl radicals (•OH) generated by Fenton reaction. This reaction requires presence iron(II). Here, we monitored speciation iron secretion iron(III)-reducing metabolites during decomposition P. involutus. X-ray absorption spectroscopy showed that was mainly present as solid iron(III) phosphates oxides. Within 1 to...