plant-fungal interactions

Mechanisms and impacts of Agaricus urinascens fairy rings on plant diversity and microbial communities in a montane Mediterranean grassland

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Fairy rings created by the mushroom Agaricus urinascens dramatically transform Mediterranean grasslands. These fungal rings create zones of dead plants and altered soil conditions, killing vegetation and reducing plant species diversity by 40% at the fungal front. The fungi coat their mycelium with calcium oxalate crystals and create water-repellent soil conditions that essentially drown plants by preventing water absorption, ultimately favoring fast-growing grasses over diverse wildflower communities.

Research landscape of experiments on global change effects on mycorrhizas

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Scientists conducted a comprehensive survey of research on how mycorrhizal fungi (underground fungi that partner with plant roots) respond to global environmental changes like drought and pollution. They found that most research focuses on just one stressor at a time, with very few studies examining how multiple environmental changes together affect these important fungi. The research also showed significant geographic biases, with most studies concentrated in developed countries, leaving major knowledge gaps about mycorrhizal responses in understudied regions.

Draft genome sequences of five endophytic fungi isolated from Lactuca serriola, a wild relative of cultivated lettuce

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Researchers sequenced the genomes of five fungal species found living inside wild lettuce plants collected in Arizona. These endophytic fungi can potentially improve the growth and disease resistance of cultivated lettuce. The study identified genetic clusters that produce compounds similar to known natural products, which could affect how these fungi interact with plants. This genomic information provides a foundation for future research into using these beneficial fungi as natural inoculants for improving lettuce crops.

Plants, fungi, and antifungals: A little less talk, a little more action

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Researchers propose looking at how plants communicate with fungi to discover new antifungal medicines. Plants send chemical signals to fungi, and understanding these signals could help us develop better treatments for fungal infections in humans and crops. By studying a simple yeast model, scientists found that plant molecules called strigolactones control fungal phosphate metabolism, suggesting they could become new drug targets.

Various types of mycorrhizal fungi sequences detected in single intracellular vesicles

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Scientists discovered that two different types of beneficial fungi can live together inside the same tiny storage structure (vesicle) within plant roots. They designed new genetic tools to identify these fungi more accurately. This finding suggests that plants may have more complex fungal partnerships than previously understood, which could help us better understand how plants get nutrients from soil and improve agriculture.

Plants, fungi, and antifungals: A little less talk, a little more action

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Plants and fungi communicate through small chemical molecules, and scientists are discovering that understanding this dialogue could lead to new antifungal medicines. Researchers found that a plant hormone called strigolactone affects a specific fungal protein involved in nutrient uptake, suggesting this could be a target for new drugs. By using baker’s yeast as a laboratory model, scientists can study how fungal cells respond to plant chemicals and identify new ways to fight dangerous fungal infections that are becoming resistant to current treatments.

Novel secondary metabolite from a new species of Hypoxylon saxatilis sp. nov. for suppressing bacterial wilt in tomato

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Scientists discovered a new type of fungus called Hypoxylon saxatilis that produces a natural compound called tetrahydrofuran. This compound effectively kills the bacteria that cause tomato plants to wilt and die. When used on tomato plants in the greenhouse, this fungal extract reduced disease severity by over 83%, offering a safer, environmentally friendly alternative to chemical pesticides for protecting crops.

Comparative transcriptomics uncovers poplar and fungal genetic determinants of ectomycorrhizal compatibility

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This research reveals the genetic ‘conversation’ between poplar tree roots and fungal partners that determines whether they form beneficial relationships. Scientists compared how different fungal species interact with poplar roots, identifying which genes turn on and off to allow compatible partnerships to develop. The study found that successful symbiosis requires careful coordination of plant defenses and fungal signaling molecules, particularly at the critical early stages of contact.

Native and Non-Native Soil and Endophytic Trichoderma spp. from Semi-Arid Sisal Fields of Brazil Are Potential Biocontrol Agents for Sisal Bole Rot Disease

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Sisal plants in Brazil are being devastated by a fungal disease called bole rot. Scientists discovered that certain beneficial fungi called Trichoderma can effectively fight this disease by producing natural compounds and directly attacking the harmful fungus. These Trichoderma fungi also help the sisal plant defend itself better against infection. The research shows that using these beneficial fungi could help save Brazil’s important sisal fiber industry.

In Vitro Mycorrhization for Plant Propagation and Enhanced Resilience to Environmental Stress: A Review

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Mycorrhizal fungi form beneficial partnerships with plant roots, significantly improving plant health and resilience to environmental stresses like drought and disease. Scientists can now grow these fungi in laboratory conditions alongside plant tissues to create enhanced plants that are stronger and more productive. This in vitro mycorrhization approach offers a sustainable alternative to chemical fertilizers and pesticides, potentially revolutionizing agriculture to better withstand climate change challenges while maintaining food security.

Research Keyword: plant-fungal interactions