Research Keyword: Biocontrol agent

Trichoderma and its role in biological control of plant fungal and nematode disease

Trichoderma is a beneficial fungus that can protect crops from diseases and pests while promoting healthier plant growth, without harmful chemical pesticides. It works through multiple strategies: competing with harmful fungi for nutrients, producing natural toxins that kill pathogens, directly parasitizing disease-causing organisms, and strengthening the plant’s own immune system. This eco-friendly approach reduces chemical pollution while improving crop quality and yields, making it an ideal solution for sustainable farming.

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Molecular and Biological Characterization of an Isolate of Fusarium graminearum dsRNA mycovirus 4 (FgV4) from a New Host Fusarium pseudograminearum

Scientists discovered a virus that infects the fungus responsible for wheat crown rot disease. When this virus infects the fungus, it slows down the fungus’s growth and reduces its ability to cause disease in wheat plants. This finding suggests the virus could potentially be used as a natural biological control method to protect wheat crops from crown rot disease, offering an environmentally friendly alternative to chemical fungicides.

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The biocontrol potential of endophyte Bacillus velezensis to reduce post-harvest tomato infection caused by Rhizopus microsporus

Researchers tested a naturally occurring bacteria called Bacillus velezensis as a safe alternative to chemical fungicides for protecting tomatoes from rot-causing mold. The bacteria produces special compounds that can kill or slow down the growth of Rhizopus microsporus, a fungus that commonly spoils tomatoes after harvest. While the results show promise, the effectiveness varied depending on which specific strain of bacteria and mold was used, suggesting more research is needed to fine-tune the approach.

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Control effects and mechanisms of metabolites from Streptomyces ahygroscopicus var. gongzhulingensis strain 769 on sclerotinia rot in sunflowers

Scientists discovered that a beneficial soil bacterium called Streptomyces can effectively control sunflower rot disease caused by a harmful fungus. When applied to soil or roots, this bacterium reduced disease severity by over 50% and improved plant root health and seed quality. The treatment works by both directly killing the pathogenic fungus and strengthening the plant’s natural defense systems.

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A mycovirus enhances fitness of an insect pathogenic fungus and potentially modulates virulence through interactions between viral and host proteins

Scientists discovered a virus that infects a beneficial fungus used to control insect pests. Instead of harming the fungus, this virus makes it much better at its job by doubling spore production, helping it survive harsh conditions like UV radiation and heat, and making it more deadly to target insects. The improvement comes from specific interactions between viral and fungal proteins that work together to enhance the fungus’s natural pest-killing abilities.

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Multi-locus phylogenetic network analysis of Ampelomyces mycoparasites isolated from diverse powdery mildews in Australia and the generation of two de novo genome assemblies

Scientists discovered and studied 20 new species of a beneficial fungus called Ampelomyces that naturally attacks powdery mildew, a common plant disease found in Australia. They created detailed genetic maps of two of these fungal strains to better understand how they work as biological control agents. This research could help develop better natural ways to protect crops like grapes and vegetables from powdery mildew without using chemical pesticides.

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Interference with sexual mating of Sporisorium scitamineum by verrucarin A isolated from Paramyrothecium sp

Scientists discovered that a naturally occurring fungus called Paramyrothecium sp. produces a compound called verrucarin A that prevents sugarcane smut disease. This compound works by stopping the mating process between fungal spores, preventing the disease from developing without harming the sugarcane plant. Greenhouse experiments showed that using this natural compound reduced disease occurrence from 80% to just 37%, offering a safe and eco-friendly alternative to chemical pesticides for protecting sugarcane crops.

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Study of the Herbicidal Potential and Infestation Mechanism of Fusarium oxysporum JZ-5 on Six Broadleaved Weeds

Scientists isolated a fungus called Fusarium oxysporum from diseased weeds and tested whether it could help farmers control unwanted plants naturally. The fungus showed strong promise against several common weeds, especially henbit deadnettle, while remaining safe for important crops like barley, wheat, and potatoes. Electron microscope observations revealed that the fungus invades weeds through tiny pores on leaves and spreads across the leaf surface. This discovery offers farmers an environmentally friendly alternative to chemical herbicides for sustainable agriculture.

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Bacillus velezensis LMY3-5 for the biocontrol of soft rot in kiwifruit: antifungal action and underlying mechanisms

Scientists discovered a beneficial bacteria called Bacillus velezensis that can effectively prevent soft rot disease in kiwifruit, which causes serious damage during storage. The bacteria works by producing natural antimicrobial compounds that damage the fungal pathogen’s cell walls and membranes, stopping it from growing. This biocontrol approach offers an environmentally friendly alternative to chemical fungicides, reducing pesticide residues while maintaining fruit quality and safety.

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Study of the Herbicidal Potential and Infestation Mechanism of Fusarium oxysporum JZ-5 on Six Broadleaved Weeds

Scientists discovered a fungal strain that effectively kills common broadleaved weeds found in farms on China’s Qinghai Plateau. The fungus, Fusarium oxysporum JZ-5, was particularly effective against henbit deadnettle and other problematic weeds while being safe for important crops like wheat, barley, and potatoes. This natural solution could replace harmful chemical herbicides and provide farmers with an environmentally friendly way to control weeds.

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