Pleurotus pulmonarius – Page 5

Toxicity of Volatile Organic Compounds Produced by Pathogens Ewingella americana and Cedecea neteri Associated with Pleurotus pulmonarius

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Researchers discovered that two types of bacteria (Ewingella americana and Cedecea neteri) causing diseases in oyster mushrooms (Pleurotus pulmonarius) produce harmful volatile compounds. These airborne toxins, especially one called 2,4-di-tert-butylphenol, can damage mushroom tissue and stop mushroom growth at very low concentrations. This is the first study showing that these bacterial volatiles are important factors in mushroom disease, which could help farmers develop better ways to detect and prevent these infections.

Construction of a genetic linkage map and detection of quantitative trait locus for the ergothioneine content in tamogitake mushroom (Pleurotus cornucopiae var. citrinopileatus)

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Researchers created the first genetic map of tamogitake mushrooms to identify genes controlling ergothioneine content. Ergothioneine is an antioxidant compound that provides health benefits like fighting inflammation and protecting brain health. They found one key genetic marker that reliably predicts which mushrooms will have high ergothioneine levels, enabling farmers to selectively breed mushrooms with enhanced health benefits.

On site discrimination between two closely related commercial strains of oyster mushroom using a loop-mediated isothermal amplification (LAMP) test

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Scientists developed a quick test to identify two specific types of oyster mushrooms (SPOPPO and ALLERPO) on farms or spawn production facilities. These sporeless mushroom varieties were created to protect workers from respiratory problems caused by mushroom spores. The new LAMP test can identify which strain is being grown in just 30 minutes using simple sample preparation, helping protect the breeding companies’ intellectual property rights from illegal copying.

Screening of Basidiomycete Strains Capable of Synthesizing Antibacterial and Antifungal Metabolites

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Researchers tested 18 types of medicinal mushrooms to see if they could produce natural antibiotics. Most of them (16 out of 18) showed antimicrobial properties, with some being particularly effective against dangerous bacteria and fungi. The most promising mushroom strain (Hericium corraloides 4) showed strong activity against multiple disease-causing organisms. This research suggests that mushrooms could be valuable sources for developing new antibiotics to fight drug-resistant infections.

Pan-genomic characterization and structural variant analysis reveal insights into spore development and species diversity in Ganoderma

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Researchers completed the first comprehensive genome study of 15 Ganoderma (Lingzhi/Reishi) varieties, including five new Chinese strains. They discovered that specific genetic changes in the MSH4 gene dramatically increase spore production in one superior strain. These findings help explain why different Ganoderma varieties have different medicinal properties and can guide breeding of better medicinal mushroom varieties.

Centesimal Composition, Bioactive Compounds, Antioxidant and α-Glucosidase Inhibitory Activities of Commercial Edible Oyster Mushrooms at Different Maturity Stages in Northern Thailand

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This study examined how oyster mushrooms change nutritionally and chemically as they mature from young to fully grown. Researchers found that while mature mushrooms have more overall nutrients and starch-like compounds, younger middle-stage mushrooms have higher levels of beneficial antioxidant compounds and special substances that may help manage blood sugar. The findings suggest that when and how you harvest mushrooms matters for what health benefits they provide, helping farmers and food makers decide when to pick mushrooms based on what they want to produce.

Ergostane-type steroids from mushrooms of Pleurotus genus

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Oyster mushrooms and king trumpet mushrooms contain special compounds called ergostane-type steroids that have interesting chemical structures. These compounds can fight inflammation and may help with cancer. Scientists have discovered that some of these compounds have unique rearranged structures that don’t exist in other organisms. These mushroom-derived compounds show promise for developing new medicines.

Efficient conversion of tea residue nutrients: Screening and proliferation of edible fungi

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Tea leaves left over from making instant tea are usually thrown away, but researchers found that special edible mushrooms can break down these tea residues and convert them into nutritious mushroom protein. Monascus kaoliang B6 was the most effective, using powerful enzymes to decompose the tough plant fibers in tea residue and transform the nutrients into edible mushroom biomass. This discovery offers an environmentally friendly way to recycle tea industry waste into a useful food product without using harsh chemicals.

Quantification of fungal biomass in mycelium composites made from diverse biogenic side streams

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Scientists developed a new method to measure how much fungus is in mycelium-based composite materials by analyzing fungal DNA. They tested three types of fungus with eight different agricultural waste materials to see which combinations made the strongest composites. The results show that the amount of fungus needed and the resulting material quality depends on both which fungus is used and which waste material is chosen, with some combinations needing as little as 5% fungus while others required much more.

Genome Sequencing of Three Pathogenic Fungi Provides Insights into the Evolution and Pathogenic Mechanisms of the Cobweb Disease on Cultivated Mushrooms

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This research sequenced the DNA of three fungi that cause cobweb disease, a serious problem in mushroom farming that can destroy entire crops. Scientists discovered that these fungi spread disease by producing special enzymes that break down mushroom cell walls and releasing toxic compounds. By understanding the genetic basis of how these fungi attack mushrooms, researchers can now develop better strategies to prevent infection and protect valuable mushroom crops.

Fungal Species: Pleurotus pulmonarius