Ecological – Page 45

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

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Researchers discovered that bacteria living on frog skin can protect against a dangerous water mold called Saprolegnia that kills amphibian eggs and young tadpoles. They tested 196 different bacteria from frogs in Portugal and found that certain bacteria, especially Bacillus species, could stop the mold from growing. Interestingly, these bacteria worked best in clean water environments with fewer nutrients, similar to natural pond conditions, suggesting nature has built-in protections for amphibians.

Four Unrecorded Species of Endophytic Diaporthe (Sordariomycetes) in Korea

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Researchers in Korea discovered four previously unknown species of Diaporthe fungi living inside plant tissues without causing visible damage. These fungi were identified using genetic analysis and compared to known species from around the world. The findings show that Korea has more fungal diversity than previously documented and suggest these fungi could potentially be used to develop new medicines or help control plant diseases.

Starve or share? Phosphate availability shapes plant–microbe interactions

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Plants need phosphate to survive, but it’s hard to find in soil. To solve this problem, plants partner with beneficial fungi and bacteria that help them absorb more phosphate. A master control system inside plants called PHR decides whether to be friendly with these helpful microbes or to defend against harmful ones, depending on how much phosphate is available. This clever system helps plants thrive even when nutrients are scarce.

Soil Fungal Diversity and Community Structure of Russula griseocarnosa from Different Sites

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Researchers studied the soil fungi living around Russula griseocarnosa, a valuable wild edible mushroom that cannot be grown in farms. They found that the soil around this mushroom contains specific beneficial fungi like Penicillium and Trichoderma that help it grow, and that these fungal communities differ depending on geographical location. The study shows that using fertilizers containing nitrogen, phosphorus, potassium, and beneficial fungi could help protect and increase the production of this wild mushroom.

Draft genome sequence of Leptobacillium coffeanum (Cordycipitaceae, Hypocreales), a freshwater fungus isolated from Bohol, Philippines

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Scientists in the Philippines have sequenced the complete genetic code of a freshwater fungus called Leptobacillium coffeanum, which was found in forest streams in Bohol. This fungus belongs to a family of fungi that can help control pests and produce useful compounds for agriculture and medicine. The complete genetic information is now available to researchers worldwide for studying how this fungus works and finding new ways to use it for practical applications.

A tiny fraction of all species forms most of nature: Rarity as a sticky state

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In nature, whether you look at forests, oceans, or human gut bacteria, a surprising pattern emerges: just a few percent of species make up most of what we see. Scientists discovered this happens because being rare is like being stuck in a sticky spot—rare species stay rare due to the mathematics of population growth, not because they’re inferior. However, these rare species aren’t useless; they act as backup species that can take over if a dominant species crashes, keeping ecosystems stable during tough times.

Investigating fungal diversity through metabarcoding for environmental samples: assessment of ITS1 and ITS2 Illumina sequencing using multiple defined mock communities with different classification methods and reference databases

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Scientists developed a comprehensive method for identifying different fungi in environmental samples using DNA sequencing technology called metabarcoding. They tested 37 mixtures of known fungi species to compare different approaches, including which DNA markers to use, which reference databases to search, and which computer analysis methods to apply. The study found that the choice of method significantly affects results, with some approaches better at genus-level identification and others at species identification, helping researchers select the best approach for their specific needs.

Biocomposites Based on Mould Biomass and Waste Fibres for the Production of Agrotextiles: Technology Development, Material Characterization, and Agricultural Application

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Researchers developed a new biodegradable material for agriculture made from mould mycelium and waste plant fibres. This eco-friendly crop cover can be used instead of synthetic plastic sheets that damage soil and pollute it with microplastics. The material breaks down naturally in soil within 10 days and can help seeds germinate better, offering farmers a sustainable alternative for protecting their crops.

Arbuscular mycorrhiza suppresses microbial abundance, and particularly that of ammonia oxidizing bacteria, in agricultural soils

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This study examined how a common soil fungus called arbuscular mycorrhiza affects bacteria and archaea that process ammonia in agricultural soils. Using 50 different soils from the Czech Republic, researchers found that the fungus suppresses ammonia-oxidizing bacteria but not archaea. Interestingly, the fungus actually increased ammonia levels in soil rather than depleting them, suggesting the suppression works through mechanisms beyond simple competition for nutrients.

Root zone microbial communities of Artemisia ordosica Krasch. at different successional stages in Mu US Sandy Land: a metagenomic perspective with culturomics insights

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Researchers studied the bacteria and fungi living around the roots of a desert plant called Artemisia ordosica that helps prevent sand dunes from spreading in China. By analyzing DNA and growing microbes in the lab, they found different communities of microorganisms at different stages of sand dune recovery. Key beneficial microbes like Bacillus and Penicillium were identified, which may help the plant survive in harsh, nutrient-poor sandy soils.

Research Topic: Ecological