Research Keyword: oxidative stress markers

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.

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Kidney Injury Induced by High-Dose Chaga Mushroom Consumption: Experimental Evidence in a Rat Model

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This study examined whether consuming large amounts of Chaga mushroom can damage the kidneys in rats. The researchers found that high-dose Chaga consumption led to kidney injury through accumulation of oxalate (a naturally occurring compound in the mushroom), causing oxidative damage and cell death in kidney tissue. The findings suggest that while Chaga mushroom is promoted as a health supplement, excessive long-term consumption may harm kidney function, particularly in susceptible individuals.

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Isolation and Identification of Aspergillus spp. from Rotted Walnuts and Inhibition Mechanism of Aspergillus flavus via Cinnamon Essential Oil

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Researchers collected rotted walnuts from storage in Shanxi, China and identified five types of Aspergillus fungi contaminating them, with Aspergillus flavus being the most common. They tested cinnamon essential oil as a natural antifungal treatment and found it effectively stopped fungal growth by damaging the fungi’s cell membranes and causing oxidative stress. This research suggests cinnamon essential oil could be used as a safe, natural alternative to chemical fungicides for preserving walnuts and other foods from fungal spoilage.

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Changes in the microflora on the seed surface and seed vigor of maize (Zea mays) under different conditions

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When maize seeds are stored in humid conditions, harmful fungi multiply rapidly and damage the seed’s ability to germinate and grow. This study found that seeds stored at 91% humidity lost 86% of their germination ability within 60 days, compared to seeds stored in drier conditions. The fungi deplete the seed’s energy reserves and trigger oxidative damage, ultimately destroying the seed’s viability. Understanding these changes helps farmers and seed producers maintain seed quality during storage.

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