metabolic pathways – Page 3

Integrated Transcriptomics and Metabolomics Provide Insight into Degeneration-Related Molecular Mechanisms of Morchella importuna During Repeated Subculturing

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Morel mushrooms (Morchella importuna) lose quality when repeatedly grown from cultured samples, a process called strain degeneration. Scientists found that degenerated strains have lower levels of beneficial compounds called flavonoids, which normally protect mushroom cells from damage. By studying gene expression and metabolite changes, researchers identified a specific gene responsible for making these protective flavonoids, which becomes less active in degenerated strains. This research suggests that avoiding frequent reculturing and maintaining cold storage or adding antioxidants could help preserve healthy morel mushroom strains.

iTRAQ-Based Quantitative Proteomic Analysis Reveals Proteomic Changes in Mycelium of Pleurotus ostreatus in Response to Heat Stress and Subsequent Recovery

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This study examined how oyster mushrooms respond to high temperatures using advanced protein analysis techniques. Researchers found that when mushroom mycelium was exposed to 40°C heat, it damaged cell membranes and changed the levels of hundreds of proteins. However, when the temperature returned to normal, the mushrooms could repair the damage and recover. Key proteins including heat shock proteins and stress-response enzymes played important roles in protecting the mushroom cells and helping them survive heat stress.

Transcriptome analysis of Ochratoxin a (OTA) producing Aspergillus westerdijkiae fc-1 under varying osmotic pressure

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A fungus called Aspergillus westerdijkiae produces a toxic substance called Ochratoxin A (OTA) that commonly contaminates foods like coffee, grapes, and wheat. Researchers used advanced gene analysis techniques to understand how salt concentration affects the fungus’s ability to produce this toxin. They found that moderate salt levels actually increase OTA production, while very high salt levels activate defense mechanisms that reduce it. These findings could help develop better strategies to prevent this dangerous contamination in our food supply.

Inhibitory Effect and Mechanism of Dryocrassin ABBA Against Fusarium oxysporum

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Researchers found that dryocrassin ABBA, a compound from a traditional East Asian fern, can effectively kill the fungus that causes potato rot disease. The compound damages the fungus by increasing harmful reactive oxygen species and disrupting the fungus’s ability to break down plant cell walls. This natural substance could potentially replace synthetic chemical fungicides, offering a safer and more environmentally friendly way to protect potatoes from disease.

In vitro and in vivo inhibitory effects and transcriptional reactions of graphene oxide on Verticillium dahliae

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Graphene oxide, a nanomaterial derived from graphene, effectively inhibits the growth of Verticillium dahliae, a fungus that causes devastating wilt disease in cotton and many other plants. The study shows that graphene oxide damages the fungal cell membrane and disrupts key metabolic processes, preventing the fungus from growing and infecting plants. When applied to cotton plants, graphene oxide treatment significantly reduced wilt disease symptoms, suggesting it could be a promising alternative to chemical fungicides for controlling this important agricultural disease.

Comparative proteomics reveals the mechanism of cyclosporine production and mycelial growth in Tolypocladium inflatum affected by different carbon sources

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Researchers studied how different sugars (fructose and sucrose) affect a fungus’s ability to produce cyclosporine A, an important drug used after organ transplants to prevent rejection. Using advanced protein analysis techniques, they found that fructose makes the fungus better at producing the drug, while sucrose makes it grow more mycelium (fungal threads). By identifying the specific proteins involved in each process, scientists can now develop better methods to produce more of this valuable medicine.

Impact of a Formulation Containing Chaga Extract, Coenzyme Q10, and Alpha-Lipoic Acid on Mitochondrial Dysfunction and Oxidative Stress: NMR Metabolomic Insights into Cellular Energy

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A new supplement formula combining Chaga mushroom extract, Coenzyme Q10, and alpha-lipoic acid was tested on nerve cells in the laboratory. The formula increased the cells’ energy production and protected them from harmful oxidative stress. This could potentially help people with conditions like fibromyalgia and neurodegenerative diseases that involve mitochondrial dysfunction.

Citric acid impairs type B trichothecene biosynthesis of Fusarium graminearum but enhances its growth and pigment biosynthesis: transcriptomic and proteomic analyses

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Citric acid, a compound found in plant roots, has an interesting dual effect on a dangerous fungus called Fusarium graminearum that destroys grain crops worldwide. While citric acid helps the fungus grow better, it actually prevents the fungus from producing dangerous toxins called trichothecenes. This finding suggests that citric acid could potentially be used in farming to reduce the harmful toxins that contaminate wheat and corn while maintaining reasonable fungal control.

You Are What You Eat: How Fungal Adaptation Can Be Leveraged toward Myco-Material Properties

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Fungi can be grown to create eco-friendly materials that could replace plastics and petroleum-based products. By controlling what fungi eat and where they grow, scientists can engineer the properties of these materials to be stronger, more flexible, or water-resistant. This approach leverages the natural ability of fungi to break down organic matter and adapt to their environment. Companies like IKEA and Dell are already using these fungal materials in product packaging.

Sustainable Recycling of Mushroom Residue as an Effective Substitute for Cotton Hull Waste in Volvariella volvacea Cultivation: Evidence from Physicochemical and Microbiome Analyses

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This research shows that mushroom waste left over from growing one type of mushroom can be recycled to grow another type of mushroom, called straw mushroom. The recycled mushroom waste works just as well as the traditional cotton hull material currently used, but costs much less money. By analyzing the bacteria and chemical changes during the composting process, scientists found that beneficial bacteria break down the organic matter effectively, making this recycling method both environmentally friendly and economically practical.

Research Keyword: metabolic pathways