Paxillus involutus – mycolab.ai

Biological Activities of Secondary Metabolites from the Edible-Medicinal Macrofungi

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This comprehensive review examines over 270 bioactive compounds from edible and medicinal mushrooms, showing they have remarkable potential to treat various diseases. These mushroom-derived substances demonstrate effectiveness against cancer, diabetes, inflammation, and infections while having fewer side effects than conventional drugs. Families like reishi and shiitake mushrooms are particularly rich sources of these healing compounds. The research suggests mushrooms are valuable natural resources for developing new therapeutic treatments.

Phytohormones and volatile organic compounds, like geosmin, in the ectomycorrhiza of Tricholoma vaccinum and Norway spruce (Picea abies)

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This research examines how a fungus (Tricholoma vaccinum) and spruce tree communicate through chemical signals. The fungus produces unique compounds including geosmin (the earthy smell of soil after rain), limonene (lemon scent), and plant hormones. These chemicals help the fungus and tree establish their beneficial partnership by affecting how the fungus grows and branches around the tree roots. The findings show that these chemical signals are crucial for successful formation of the mycorrhizal relationship.

Low Temperature Enhances N-Metabolism in Paxillus involutus Mycelia In Vitro: Evidence From an Untargeted Metabolomic Study

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Researchers studied how a common forest fungus (Paxillus involutus) responds to cold temperatures like those found in spring and autumn. Surprisingly, even though the fungus grew slower in the cold, it actually increased its nitrogen uptake and production of amino acids, the building blocks of proteins. This suggests the fungus has special adaptation mechanisms to thrive in cold environments, which could be important for understanding how climate change might affect forest health.

Low Temperature Enhances N-Metabolism in Paxillus involutus Mycelia In Vitro: Evidence From an Untargeted Metabolomic Study

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This study examined how a common forest fungus (Paxillus involutus) responds to cold temperatures by analyzing its chemical composition. When kept at cold temperatures like those found in spring and autumn forests, the fungus took up and used more nitrogen for making amino acids and other nitrogen compounds, even though it grew more slowly. This suggests that cold-adapted fungi have special mechanisms to acquire nutrients efficiently in cold conditions, which may be important for how they help trees survive in changing climates.

Plasticity of symbiotroph-saprotroph lifestyles of Piloderma croceum associated with Quercus robur L.

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A fungus called Piloderma croceum can switch between two lifestyles: breaking down dead wood to get nutrients, and forming beneficial partnerships with living oak tree roots. This research shows that dead wood colonized by this fungus acts like a ‘bank’ of fungal spores that can later establish symbiotic relationships with new trees. This process helps forests thrive by improving how trees obtain nutrients from soil. Understanding this dual lifestyle reveals how deadwood plays an important role in forest health beyond just decomposition.

Plasticity of symbiotroph-saprotroph lifestyles of Piloderma croceum associated with Quercus robur L

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This research reveals that a common forest fungus called Piloderma croceum can switch between two different lifestyles: breaking down dead wood to obtain nutrients, and forming beneficial partnerships with living oak tree roots. The study shows that dead wood colonized by this fungus serves as a natural ‘seed bank’ for these fungi, allowing them to later colonize new trees. This discovery suggests that protecting deadwood in forests may indirectly help forests grow healthier by supporting the fungi that help trees absorb nutrients.

Silver Chloride Precipitation-limiting Factor for Accurate Silver Determination in Ag-accumulating Mushrooms After Nitric Acid Digestion

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This research addresses a critical problem in measuring silver content in certain mushrooms, particularly silver-accumulating Amanita species. Scientists discovered that standard laboratory digestion procedures using nitric acid can cause silver to precipitate as silver chloride, making it invisible to measurement instruments and leading to false low results. The study demonstrates that neutron activation analysis is more accurate for measuring silver in these mushrooms, or alternatively, specialized multi-step digestion procedures can dissolve the precipitated silver chloride to obtain accurate measurements.

What Quality Suffices for Nanopore Metabarcoding? Reconsidering Methodology and Ectomycorrhizae in Decaying Fagus sylvatica Bark as Case Study

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This study shows that Nanopore DNA sequencing can reliably identify fungi in decaying wood. Researchers developed guidelines for quality filtering of Nanopore data to ensure accurate identification of fungal species. They found that specific mycorrhizal fungi, particularly Laccaria amethystina and Tomentella sublilacina, colonize young beech trees growing on decaying logs and help them obtain nutrients.

A Review of the Occurrence of Alpha-Emitting Radionuclides in Wild Mushrooms

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Wild mushrooms can absorb radioactive elements from soil, particularly polonium and radium which accumulate to high levels. The amount of radioactivity varies greatly depending on where mushrooms are grown and what species they are. In most areas, naturally occurring radioactive elements are the main concern, but mushrooms from regions affected by nuclear accidents like Chernobyl may contain dangerous artificial radioactive isotopes. People who frequently consume wild mushrooms from certain regions could potentially exceed safe annual radiation exposure limits.

Bibliometric analysis of European publications between 2001 and 2016 on concentrations of selected elements in mushrooms

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Researchers reviewed 200 European studies from 2001-2016 examining how mushrooms absorb heavy metals from soil. They found that mushrooms, especially edible species, can accumulate dangerous metals like cadmium, lead, and mercury, with the highest contamination in mushrooms from polluted industrial areas. Turkey, Poland, Spain, and Czech Republic led research efforts on this topic. Scientists increasingly used health risk assessment methods to determine safe consumption levels of mushrooms from different habitats.

Fungal Species: Paxillus involutus