forest ecosystems – mycolab.ai

A trait spectrum linking nitrogen acquisition and carbon use of ectomycorrhizal fungi

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Different types of ectomycorrhizal fungi have evolved distinct strategies for acquiring nutrients from soil and transferring them to trees. The study proposes that these fungi can be arranged on a spectrum from ‘absorbers’ that quickly grab available nutrients in fertile forests to ‘miners’ that slowly exploit tough organic matter in poor forests. This framework explains why the same fungus behaves differently depending on soil fertility and unifies seemingly contradictory observations about fungal responses to nutrient additions.

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.

Forty Years After Chernobyl: Radiocaesium in Wild Edible Mushrooms from North-Eastern Poland and Its Relevance for Dietary Exposure and Food Safety

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Researchers tested wild mushrooms from forests in Poland to see if they contained dangerous radiation from the 1986 Chernobyl disaster. They measured radioactive cesium and potassium in 230 mushroom samples from 19 different species and compared them to soil samples. Good news: all the mushrooms were safe to eat according to food safety standards, with radiation levels below the legal limits. The study shows that mushrooms can be good indicators of how much radiation remains in forest environments.

Diverse nitrogen acquisition strategies of conifer-associated ectomycorrhizal fungi shape unique responses to changing nitrogen regimes

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This research examines how different types of mushroom fungi that partner with conifer trees acquire nitrogen in different ways. Using genomic analysis, lab experiments, and historical mushroom samples from the past 60 years, scientists found that even closely related fungal species have distinct strategies for obtaining nitrogen from different sources. These findings suggest that coniferous forests may respond quite differently to changes in nitrogen availability compared to forests with broadleaf trees.

Research Topic: forest ecosystems

A trait spectrum linking nitrogen acquisition and carbon use of ectomycorrhizal fungi

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

Forty Years After Chernobyl: Radiocaesium in Wild Edible Mushrooms from North-Eastern Poland and Its Relevance for Dietary Exposure and Food Safety

Diverse nitrogen acquisition strategies of conifer-associated ectomycorrhizal fungi shape unique responses to changing nitrogen regimes