antimicrobial activity – Page 2

Volatile Organic Compounds Produced by Co-Culture of Burkholderia vietnamiensis B418 with Trichoderma harzianum T11-W Exhibits Improved Antagonistic Activities against Fungal Phytopathogens

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Scientists studied how two beneficial microorganisms (a bacterium and a fungus) work together to produce compounds that kill plant-damaging fungi. When grown together, they produced more protective compounds than when grown separately, showing promise as a natural alternative to chemical fungicides for protecting crops and stored fruits from fungal diseases.

Algae and Cyanobacteria Fatty Acids and Bioactive Metabolites: Natural Antifungal Alternative Against Fusarium sp.

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Fusarium fungi cause serious crop diseases that farmers traditionally treat with chemical fungicides, but these chemicals harm the environment and create resistant fungi. Scientists are finding that algae and cyanobacteria (blue-green algae) produce natural compounds like fatty acids that can fight these fungi effectively. This research shows promising results for developing natural, environmentally-friendly fungicides that could help farmers protect crops without chemical damage.

Draft whole genome sequence of Alternaria alternata strain P02PL2, an endophytic fungal species isolated from Sclerocarya birrea

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Scientists sequenced the complete genetic blueprint of a beneficial fungus called Alternaria alternata that lives inside African marula tree leaves. This fungus produces many different bioactive compounds with potential medical applications. The genetic information is now publicly available for researchers to study how this fungus makes these useful compounds and develop new treatments.

Biocontrol of Seedborne Fungi on Small-Grained Cereals Using Bacillus halotolerans Strain B33

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Researchers discovered that a bacterium called Bacillus halotolerans strain B33 can effectively prevent harmful fungi from damaging cereal seeds like wheat, barley, oats, and rye. When seeds were treated with this beneficial bacterium, it successfully eliminated or greatly reduced three dangerous fungal pathogens while also helping the seeds germinate better. This natural approach offers a promising environmentally-friendly alternative to chemical fungicides for protecting grain crops.

Verticillium-like Anamorphic Fungi in Sordariomycetes from Southwestern China: Two New Taxa and a New Record

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Researchers discovered two new fungal species in southwestern China’s rainforests: Leptobacillium gasaense and Ovicillium yunnanense. They also documented the asexual reproductive structures of Muscodor coffeanus, an endophytic fungus known for producing antibiotic compounds. These findings expand our understanding of beneficial fungi that can control pests and diseases in agriculture and forestry.

Extracellular Biosynthesis, Characterization and Antimicrobial Activity of Silver Nanoparticles Synthesized by Filamentous Fungi

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Researchers used three types of common fungi to create tiny silver particles in an environmentally friendly way. These silver nanoparticles were found to effectively kill harmful bacteria and fungal infections. The fungus Cladosporium cladosporoides was the most effective at producing these particles, showing promise for use in medical and health applications.

Activation of Secondary Metabolism and Protease Activity Mechanisms in the Black Koji Mold Aspergillus luchuensis through Coculture with Animal Cells

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Researchers found that growing koji mold (Aspergillus luchuensis) alongside mouse immune cells in the laboratory significantly increases the production of valuable bioactive compounds. The mold releases enzymes called proteases that break down proteins from the animal cells, which the fungus then uses as building blocks to create medicinal compounds. This discovery shows that coculturing microorganisms with animal cells is an effective strategy to unlock hidden chemical production capabilities in fungi, which could lead to new medicines and useful compounds.

Nutritional contents and antimicrobial activity of the culinary-medicinal mushroom Leccinum scabrum

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This study examined the health benefits of Leccinum scabrum, a mushroom used both as food and medicine. Researchers tested extracts from this mushroom against harmful bacteria and found they were very effective at stopping bacterial growth. The extracts were created using two different methods and both worked well, suggesting this mushroom could have practical antimicrobial applications.

Volatile Metabolome and Transcriptomic Analysis of Kosakonia cowanii Ch1 During Competitive Interaction with Sclerotium rolfsii Reveals New Biocontrol Insights

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Researchers found that a bacterium called K. cowanii produces special gases (volatile organic compounds) that kill fungal plant diseases like those caused by Sclerotium rolfsii. When grown together with this fungus, the bacterium produces these toxic gases which inhibit fungal growth by up to 80%. The study identified specific genes the bacteria activate to produce these antifungal compounds, offering a natural alternative to chemical fungicides for protecting crops.

Advancing Food Preservation: Sustainable Green-AgNPs Bionanocomposites in Paper-Starch Flexible Packaging for Prolonged Shelf Life

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Researchers developed an eco-friendly food packaging material by coating paper with corn starch and tiny silver particles created through green chemistry methods. This innovative packaging significantly improved food durability, reducing weight loss in fresh produce like tomatoes and grapes by 6-8% over six days. The material is completely biodegradable and poses no safety concerns, making it a sustainable alternative to traditional plastic packaging.

Research Keyword: antimicrobial activity