pathogen suppression – Page 2

Antifungal effects of metabolites from Arthrinium sp. 2–65 and identification of main active ingredients

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Scientists discovered that a fungus called Arthrinium sp. 2–65, found living inside a wild plant called Thymus mongolicus, produces two special compounds that can kill the fungus responsible for grey mould disease. Grey mould is a major problem for farmers worldwide, damaging crops like tomatoes, grapes, and strawberries. These newly identified compounds were tested and showed excellent effectiveness against the disease, offering a promising natural alternative to chemical pesticides that have become less effective due to resistance and environmental concerns.

Potential Protective Role of Amphibian Skin Bacteria Against Water Mold Saprolegnia spp

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Frog populations are declining due to various diseases and environmental challenges. This research discovered that bacteria living on frog skin can protect against harmful water molds called Saprolegnia that attack amphibian eggs. Scientists found that different types of bacteria, particularly Bacillus species, can inhibit the growth of these water molds. The protective effect was strongest in nutrient-poor conditions similar to natural water environments, suggesting that the bacterial symbiosis with frogs may be an important defense mechanism.

Isolation and Biological Control of Colletotrichum sp. Causing Anthracnosis in Theobroma cacao L. in Chiapas, Mexico

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Cacao farmers in Mexico’s Chiapas region face serious crop losses from anthracnose, a fungal disease caused by Colletotrichum. Researchers found a beneficial bacterium called Paenibacillus sp. NMA1017 that can suppress this disease as effectively as commercial fungicide alternatives. By testing this natural biocontrol agent both in the laboratory and on actual cacao farms, they demonstrated it could reduce disease occurrence from 65% down to just 12-20%, offering farmers a sustainable alternative to chemical treatments.

Cytophysiological manifestations of wheat’s defense reactions against stem rust induced by the biofungicide Novochizol

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Scientists studied how a new plant-based product called Novochizol helps wheat plants defend themselves against stem rust, a destructive fungal disease. When wheat seedlings were treated with Novochizol before being exposed to the rust fungus, the plants showed strong defensive reactions including increased production of protective hydrogen peroxide and phenolic compounds. The treatment significantly reduced the number and size of rust pustules (infection spots) on susceptible wheat plants, effectively converting them to a more resistant state without harming the plants.

Impact of Various Essential Oils on the Development of Pathogens of the Fusarium Genus and on Health and Germination Parameters of Winter Wheat and Maize

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Researchers tested four plant-based essential oils as natural alternatives to chemical fungicides for protecting wheat and maize seeds from harmful Fusarium fungi. Thyme oil proved most effective at preventing fungal infections and seedling disease, performing as well as synthetic fungicides. However, thyme oil at higher doses harmed seed germination and plant growth, suggesting careful dose selection is needed for practical use. The findings indicate essential oils could replace chemical pesticides while maintaining crop safety, though different oils must be tested for various crops.

Antagonistic potential and analytical profiling of plant probiotic bacteria using chromatography and mass spectrometry techniques against Botrytis cinerea and Fusarium oxysporum

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Researchers discovered that certain beneficial bacteria can fight plant diseases caused by harmful fungi. Two bacteria strains showed exceptional ability to inhibit the growth of disease-causing fungi that damage crops. These bacteria produce natural compounds like phenols and organic acids that help plants grow better and resist diseases. This research suggests these bacteria could be used as natural alternatives to chemical pesticides for sustainable farming.

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

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This research demonstrates how a beneficial bacterium called Kosakonia cowanii Ch1 can fight a harmful fungus that damages crops. The bacterium produces volatile chemicals that inhibit fungal growth and shows different gene activity depending on whether these chemicals are present. When the beneficial bacteria and fungus compete together with the volatiles present, the bacteria win by producing gas bubbles and effectively stopping the fungus. These findings suggest a natural alternative to chemical fungicides for protecting crops.

Development of a granular bioformulation of Achromobacter xylosoxidans AX77 16S for sustainable onion white rot management and growth enhancement

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Scientists discovered a beneficial bacterium living inside onion seeds that can fight a serious fungal disease called white rot and help seeds grow better. They turned this bacterium into an easy-to-use granular product that lasts up to a year, offering farmers an environmentally friendly alternative to chemical fungicides. The product not only prevents the fungal disease but also improves seed germination and plant growth, making it a promising sustainable solution for onion farming.

Biocontrol of Fusarium oxysporum f. sp. cepae on Indonesian Local Garlic Plants (Lumbu Hijau) Using a Consortium of Bacillus amyloliquefaciens B1 and Arbuscular Mycorrhizal Fungi

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Researchers in Indonesia developed a natural way to protect garlic plants from a serious fungal disease using a combination of beneficial bacteria (Bacillus amyloliquefaciens) and fungi (arbuscular mycorrhizal fungi). When applied together, these microorganisms reduced disease by 84% while also making the garlic plants grow taller and produce more biomass. This provides farmers with an environmentally friendly alternative to chemical fungicides.

therapeutic action: pathogen suppression