gene expression – Page 9

Integrated multi-omics identifies plant hormone signal transduction and phenylpropanoid biosynthesis as key pathways in kiwifruit (Actinidia chinensis var. deliciosa) resistance to Botryosphaeria Dothidea infection

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Kiwifruit can be infected by a fungus called Botryosphaeria dothidea, which causes soft rot and makes the fruit inedible. Researchers used advanced techniques to study what happens inside the fruit when infected, finding that certain plant hormones and chemical pathways become active to fight the infection. They identified two key genes that appear to control how the fruit responds to the fungus, which could help develop better ways to prevent this costly disease.

Influence of Pleurotus sapidus fruiting bodies on the performance, cecal microbiome, and gene expression in the liver and breast muscle of broilers

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Researchers tested whether edible mushroom fruiting bodies could be used as animal feed for chickens. They found that chickens fed diets containing oyster mushroom (Pleurotus sapidus) had reduced growth and lower nutrient absorption compared to control chickens. While mushroom-based feed appeared to increase beneficial gut bacteria diversity, it ultimately impaired overall chicken performance, suggesting mushroom fruiting bodies are not suitable as a primary feed component for commercial poultry production.

Influences of substrate and tissue type on erinacine production and biosynthetic gene expression in Hericium erinaceus

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Researchers studied how different growing conditions affect erinacine production in lion’s mane mushroom mycelium. They found that the type of nutrients provided (substrate) significantly influences which erinacines are produced, even when the genes responsible for making these compounds show similar activity levels. Mycelium produced much more erinacines than fruit bodies, and specific nutrients could be used to encourage production of specific beneficial compounds.

Iron acquisition in the mutualistic fungus Penicillium herquei: implications of mineral elements in insect-fungus symbiosis

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A fungus that lives with beetles has evolved special abilities to collect and store iron, which it shares with its insect partner. Researchers found that this mutualistic fungus produces much higher levels of iron than the plant leaves the beetles would normally eat. The fungus uses special proteins and iron-grabbing molecules to accumulate this essential nutrient, providing a nutritional advantage to the beetle and strengthening their partnership.

The Transformation and Protein Expression of the Edible Mushroom Stropharia rugosoannulata Protoplasts by Agrobacterium-tumefaciens-Mediated Transformation

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Researchers successfully developed a method to genetically modify the edible mushroom Stropharia rugosoannulata using Agrobacterium tumefaciens bacteria. This technique allows scientists to insert and express foreign genes in the mushroom, providing tools to study how specific genes control mushroom growth and the production of health-promoting compounds. The study demonstrates that both artificial and natural resistance markers can be used to identify successfully transformed mushrooms, offering a foundation for improving mushroom cultivation and breeding.

Comparative gene expression analysis in closely related dermatophytes reveals secondary metabolism as a candidate driver of virulence

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A strain of fungal skin pathogen (Trichophyton benhamiae var. luteum) is spreading rapidly among guinea pigs and people in Europe, but scientists didn’t understand why it was more contagious than closely related strains. Researchers compared gene activity in four related fungal species and found that the epidemic strain produces higher levels of toxic compounds called secondary metabolites. These compounds help the fungus escape the body’s immune system and cause infection more effectively than in less dangerous relatives.

Transcriptome Analysis Reveals Critical Genes Involved in the Response of Stropharia rugosoannulata to High Temperature and Drought Stress

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This study examined how a type of edible mushroom called Stropharia rugosoannulata responds to high heat and dry conditions by analyzing which genes become active. Researchers found that under stress, the mushroom activates specific genes that help it survive, particularly through a cellular communication pathway called MAPK. They identified 15 key genes that could be useful for breeding mushroom varieties that better withstand harsh growing conditions, which could improve mushroom farming efficiency.

Overexpression of efflux pump and biofilm associated genes in itraconazole resistant Candida albicans isolates causing onychomycosis

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This study examined why some fungal nail infections caused by Candida albicans don’t respond to itraconazole treatment. Researchers found that resistant fungi have higher levels of genes that pump the antifungal drug out of their cells and genes that help them form protective biofilm layers. These findings suggest that combining itraconazole with drugs that block these pumps or disrupt biofilms could be more effective for treating stubborn fungal nail infections.

Insights into the structure, function, and impact of Candida albicans UPC2 gene on azole resistance; a mini-review

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Candida albicans is a common fungal infection that doctors treat with azole medications, but the fungus is increasingly developing resistance to these drugs. Scientists have discovered that a gene called UPC2 plays a key role in this resistance by controlling the production of enzymes that help the fungus survive azole treatment. Understanding how UPC2 works could help develop new strategies to overcome drug-resistant fungal infections.

Transcriptomic profiling revealed important roles of amino acid metabolism in fruiting body formation at different ripening times in Hypsizygus marmoreus

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Researchers studied why the marbled puffball mushroom takes such a long time to produce fruit bodies by analyzing gene expression at different growth stages. They found that genes involved in amino acid processing and lignin breakdown are particularly important during fruiting body formation. By understanding these molecular processes, scientists can potentially develop ways to shorten cultivation time and improve mushroom farming efficiency.

Research Topic: gene expression