microbial communities

Editorial: Effects of microplastics on soil ecosystems

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Tiny plastic particles called microplastics are accumulating in soil worldwide and causing problems for the microorganisms that keep soil healthy. This editorial reviews research showing that while newer biodegradable plastic mulches used in farming are better than traditional plastics, both types can weaken the complex networks of beneficial soil microbes. Scientists found bacteria that can break down some plastic chemicals, but long-term solutions require better monitoring and ways to manage plastic residues in agricultural soils.

Microbial Degradation of Chromium-Tanned Leather During Thermophilic Composting: A Multi-Scale Analysis of Microbial Communities and Structural Disruption

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This study investigated how naturally occurring microorganisms can break down chromium-tanned leather waste through controlled composting at high temperatures. Researchers found that thermophilic composting successfully fragmented leather and selected specialized bacteria and fungi capable of surviving in chromium-rich environments. These microorganisms formed protective biofilms on leather surfaces, suggesting potential strategies for safer disposal of leather waste from the footwear and tannery industries.

Microbial communities in petroleum refinery effluents and their complex functions

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Oil refineries produce large amounts of wastewater containing harmful petroleum products and heavy metals. Instead of using toxic chemical treatments, scientists are discovering that microorganisms naturally found in this wastewater—including bacteria, fungi, algae, and yeast—can break down these pollutants safely and effectively. These microbes can degrade oil hydrocarbons, remove heavy metals, and produce natural surfactants that help in the cleanup process, offering an environmentally friendly and cost-effective solution to refinery pollution.

Exploring the Core Functional Microbiota Related to Flavor Compounds in Douchi from the Sichuan–Chongqing Region

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Douchi is a traditional Chinese fermented soybean product valued for its unique flavor. This research examined seven different douchi samples to understand which bacteria and fungi create the flavor compounds. The scientists found that specific microorganisms like Bacillus and Mucor produce different flavor molecules including fruity, floral, and caramel aromas. These findings can help producers select the best microorganisms to create better-tasting douchi products.

Morphological, Genetic, and Microbiological Characterization of Tuber magnatum Picco Populations from Alto Molise, Central-Southern Italy

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This research studied Italian white truffles from the Molise region, one of Italy’s most important truffle-producing areas. Scientists examined 20 truffles from four different locations, analyzing their physical characteristics, genetic makeup, and the bacteria and fungi living inside them. They discovered a unique genetic pattern found only in Molise truffles and identified complex microbial communities that may help authenticate where truffles came from, helping prevent food fraud and protect truffle producers.

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

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This study examined how beneficial fungal partners of plants (arbuscular mycorrhizal fungi) affect soil bacteria that convert ammonia to nitrate. Using 50 different soils from Czech agricultural fields, researchers found that these fungi suppress ammonia-oxidizing bacteria, but surprisingly this happens even when ammonia levels in soil are high. The findings suggest the relationship between these microorganisms is more complex than simple competition for nutrients.

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

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Fairy ring fungi create circular patterns in grasslands by forming dense underground networks that dramatically change soil properties and plant communities. The study found that these fungal rings reduce plant diversity by 40% at their advancing edge while boosting grass growth inside the ring, creating a stark ecological shift. The fungi produce calcium oxalate crystals that make soil very water-repellent, causing nearby plants to dry out and die. This research shows how a single fungus species can reshape entire ecosystems through physical and chemical changes in the soil.

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.

The differences between broad bean koji fermented in laboratory and factory conditions by an efficient Aspergillus oryzae

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This study compared how two types of A. oryzae fungi ferment broad beans to make koji, a starter ingredient for Chinese broad bean paste. Researchers tested the same fungi in small laboratory batches and large factory batches to see if what works in the lab also works in industry. They found that the factory’s larger scale and different environment actually had a bigger impact on the final product than which specific fungus strain was used, though the PN strain was still efficient overall.

Metagenomics and In Vitro Growth-Promoting Experiments Revealed the Potential Roles of Mycorrhizal Fungus Humicolopsis cephalosporioides and Helper Bacteria in Cheilotheca humilis Growth

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Scientists studied a rare white plant called Cheilotheca humilis that cannot make its own food through photosynthesis and instead relies on fungi to survive. Using advanced DNA sequencing and laboratory experiments, they discovered that a special fungus called Humicolopsis cephalosporioides and several types of helpful bacteria work together to provide the plant with essential carbon and nutrients. This research reveals how these invisible microbial partners make it possible for this unusual plant to grow and thrive.

Research Topic: microbial communities