antagonistic mechanisms

Bacteria from the Amphibian Skin Inhibit the Growth of Phytopathogenic Fungi and Control Postharvest Rots

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Researchers discovered that bacteria living on frog skin can effectively prevent fungal diseases that rot fruits after harvest. These bacteria work by producing toxic compounds and releasing protective gases that stop fungi like green mold from growing. When applied to citrus, tomatoes, and blueberries, the bacteria significantly reduced fruit rot, offering an eco-friendly alternative to chemical fungicides for food preservation.

Isolation and Identification of Endophytic Bacterium B5 from Mentha haplocalyx Briq. and Its Biocontrol Mechanisms Against Alternaria alternata-Induced Tobacco Brown Spot

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Scientists discovered a beneficial bacterium called Bacillus velezensis in mint plants that can fight tobacco brown spot disease caused by a fungus. This bacterium works by producing natural antifungal compounds and enzymes that damage the fungus, and it helps boost the plant’s own defense systems. In greenhouse tests, this bacterial treatment was as effective as commercial chemical fungicides, offering farmers a safer, more environmentally friendly option for protecting their tobacco crops.

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.

Study of the Antagonism of Biocontrol Strains Against the Blue-Stain Fungus of Rubberwood

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Rubberwood commonly develops blue staining from fungi, which reduces its value. Scientists isolated two beneficial fungi from rubberwood that can prevent this staining by competing with the harmful fungus. Testing showed that one beneficial fungus, Trichoderma reesei, works better than the other and could be used as a natural treatment to protect rubberwood from blue staining without damaging the wood.

Antagonistic mechanism of Bacillus velezensis HX0039 as a biocontrol agent against Trichoderma virens-induced ‘Sanghuang’ green mold

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Scientists discovered a beneficial bacteria called Bacillus velezensis HX0039 that can protect ‘Sanghuang’ mushrooms from harmful green mold disease. This bacteria produces natural antifungal compounds like iturin A that stop the disease without harming the mushrooms or the environment. Testing showed it was 83% effective at preventing green mold and was completely safe for both mushroom cultivation and animal consumption, making it a promising alternative to chemical fungicides.

Effect of Pseudomonas protegens EMM-1 Against Rhizopus oryzae in Interactions with Mexican Autochthonous Red Maize

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Mexican red maize, an important traditional crop, is threatened by a fungus called Rhizopus oryzae that causes root damage and wilting. Researchers found that a beneficial bacterium, Pseudomonas protegens EMM-1, can effectively stop this fungal infection and help maize plants grow better. Tests showed the bacterium reduced fungal growth by over 80% and improved plant root development when grown together with the fungus.

Biocontrol Potential of Bacillus velezensis RS65 Against Phytophthora infestans: A Sustainable Strategy for Managing Tomato Late Blight

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Researchers tested 30 soil bacteria from tomato roots to find natural disease fighters. They discovered that Bacillus velezensis RS65, a beneficial bacterium, effectively prevents tomato late blight by producing enzymes and toxins that kill the fungal pathogen. In greenhouse tests, plants treated with RS65 had half the disease severity compared to untreated plants, suggesting this bacteria could replace chemical fungicides in sustainable tomato farming.

Talaromyces pinophilus Strain HD25G2 as a Novel Biocontrol Agent of Fusarium culmorum, the Causal Agent of Root and Crown Rot of Soft Wheat

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A fungus called Talaromyces pinophilus shows promise as a natural pest controller against Fusarium culmorum, which damages wheat crops worldwide. When applied early to wheat seeds, this beneficial fungus produces enzymes that break down the harmful fungus’s cell walls, completely preventing damage and toxin contamination. However, timing is critical—if applied too late, it can paradoxically increase toxin production, suggesting it works best as a preventative treatment before infection occurs.

Carbon substrates utilization determine antagonistic fungal-fungal interactions among root-associated fungi

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Scientists studied how different fungi in plant roots compete with disease-causing fungi. They found that fungi with different eating habits (carbon substrate preferences) fight off plant pathogens in different ways. Some fungi that eat many types of food produced toxic compounds to kill pathogens, while others competed directly for food. This discovery could help farmers use beneficial fungi to naturally protect crops from diseases.

The yeast Wickerhamomyces anomalus acts as a predator of the olive anthracnose-causing fungi, Colletotrichum nymphaeae, C. godetiae, and C. gloeosporioides

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A beneficial yeast called Wickerhamomyces anomalus can kill the fungi that cause olive anthracnose, a disease that damages olive crops and reduces oil quality. Unlike chemical fungicides, this yeast works by physically attacking the fungal hyphae, sticking to them and draining their contents to feed itself. This natural biocontrol approach could provide farmers with a safer, more sustainable way to protect olive trees from disease.

Research Keyword: antagonistic mechanisms