ArticleThe New phytologist2013
The molecular components of the extracellular protein-degradation pathways of the ectomycorrhizal fungus Paxillus involutus.
Article in The New phytologist, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 64 citations in OpenAlex.
- Multi-meta-omics reveal unique symbiotic synchronization between ectomycorrhizal fungus and soil microbiome in Tricholoma matsutake habitat.Microbiome · 2025Article
- Diverse nitrogen acquisition strategies of conifer-associated ectomycorrhizal fungi shape unique responses to changing nitrogen regimes.Frontiers in plant science · 2025Article
- Mycorrhizal symbiosis and the nitrogen nutrition of forest trees.Applied microbiology and biotechnology · 2024Review
- The potential role of Mucoromycotina 'fine root endophytes' in plant nitrogen nutrition.Physiologia plantarum · 2022Article
- Recently photoassimilated carbon and fungus-delivered nitrogen are spatially correlated in the ectomycorrhizal tissue of Fagus sylvatica.The New phytologist · 2021Article
- Phosphate availability and ectomycorrhizal symbiosis with Pinus sylvestris have independent effects on the Paxillus involutus transcriptome.Mycorrhiza · 2021Article
- Secretion of Iron(III)-Reducing Metabolites during Protein Acquisition by the Ectomycorrhizal FungusMicroorganisms · 2020Article
- Regulation of fungal decomposition at single-cell level.The ISME journal · 2020Article
- Comparative mitogenome analysis of two ectomycorrhizal fungi (IMA fungus · 2020Article
- Article
- Decomposition of spruce wood and release of volatile organic compounds depend on decay type, fungal interactions and enzyme production patterns.FEMS microbiology ecology · 2019Article
- Scavenging organic nitrogen and remodelling lipid metabolism are key survival strategies adopted by the endophytic fungi, Serendipita vermifera and Serendipita bescii to alleviate nitrogen and phosphorous starvation in vitro.Environmental microbiology reports · 2019Article
- Influence of Ammonium on Formation of Mineral-Associated Organic Carbon by an Ectomycorrhizal Fungus.Applied and environmental microbiology · 2019Article
- Digging Deeper: In Search of the Mechanisms of Carbon and Nitrogen Exchange in Ectomycorrhizal Symbioses.Frontiers in plant science · 2019Review
- Polyporales Brown Rot Species Fomitopsis pinicola: Enzyme Activity Profiles, Oxalic Acid Production, and FeApplied and environmental microbiology · 2018Article
- Fenton reaction facilitates organic nitrogen acquisition by an ectomycorrhizal fungus.The New phytologist · 2018Article
- Trees, fungi and bacteria: tripartite metatranscriptomics of a root microbiome responding to soil contamination.Microbiome · 2018Article
- Comparative genomics and expression levels of hydrophobins from eight mycorrhizal genomes.Mycorrhiza · 2017Article
- Ectomycorrhizal fungi decompose soil organic matter using oxidative mechanisms adapted from saprotrophic ancestors.The New phytologist · 2016Article
- Ectomycorrhizal Fungal Protein Degradation Ability Predicted by Soil Organic Nitrogen Availability.Applied and environmental microbiology · 2015Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Proteins contribute to a major part of the organic nitrogen (N) in forest soils. This N is mobilized and becomes available to trees as a result of the depolymerizing activities of symbiotic ectomycorrhizal fungi. The mechanisms by which these fungi depolymerize proteins and assimilate the released N are poorly characterized. Biochemical analysis and transcriptome profiling were performed to examine the proteolytic machinery and the uptake system of the ectomycorrhizal basidiomycete Paxillus involutus during the assimilation of organic N from various protein sources and extracts of organic matter. All substrates induced secretion of peptidase activity with an acidic pH optimum, mostly contributed by aspartic peptidases. The peptidase activity was transiently repressed by ammonium. Transcriptional analysis revealed a large number of extracellular endo- and exopeptidases. The expression levels of these peptidases were regulated in parallel with transporters and enzymes involved in the assimilation and metabolism of the released peptides and amino acids. For the first time the molecular components of the protein degradation pathways of an ectomycorrhizal fungus are described. The data suggest that the transcripts encoding these components are regulated in response to the chemical properties and the availability of the protein substrates.
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