Research Keyword: Stochastic processes

Bioremediation Potential of Rhodococcus qingshengii PM1 in Sodium Selenite-Contaminated Soil and Its Impact on Microbial Community Assembly

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This study investigated how a bacterium called Rhodococcus qingshengii PM1 can help clean up soil contaminated with selenium, a toxic element that accumulates in food chains. Using advanced genetic sequencing, researchers found that this bacterium can break down toxic selenite compounds by 63-71% within three weeks, which is much faster than natural processes. Adding the bacteria to contaminated soil also helped restore the diversity and health of the natural soil microbial communities, making it a promising tool for environmental cleanup efforts.

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Fungal communities in Florida salt marsh mosquito midguts vary between species and over time but have low structure

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Researchers studied the fungi living in the guts of three types of Florida salt marsh mosquitoes. They found that all mosquitoes carried high amounts of a common environmental yeast called Rhodotorula lamellibrachiae. The type of mosquito species mattered more than the time of year for determining which fungi were present. Unlike bacterial communities in mosquitoes, the fungal communities appeared to assemble somewhat randomly rather than following organized patterns.

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Rhizosphere Bacterial Communities Alter in Process to Mycorrhizal Developments of a Mixotrophic Pyrola japonica

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This study explores how bacteria living around plant roots change as the plant develops its relationship with fungi. Researchers found that when fungi fully colonized plant roots in Pyrola japonica, the bacterial community became less diverse but more stable. Even after fungi died off, the bacterial community remained, suggesting these bacteria play an important long-term role in helping the plant obtain nutrients and resist diseases.

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Effect of Inoculation with Arbuscular Mycorrhizal Fungi (Rhizophagus irregularis BGC AH01) on the Soil Bacterial Community Assembly

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This study examined how arbuscular mycorrhizal fungi (a beneficial fungus that partners with plant roots) influence soil bacteria communities over time. Researchers grew maize plants with and without this fungus and tracked bacterial changes over 90 days. They found that the fungus creates a more stable and diverse bacterial community that reaches equilibrium around 60 days, helping improve nutrient availability for plant growth.

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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.

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Deciphering the role of traditional flipping crafts in medium-temperature Daqu fermentation: Microbial succession and metabolic phenotypes

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This research explains how traditional flipping techniques during Daqu (a fermentation starter for Chinese Baijiu liquor) improve its quality. By comparing fermented Daqu that was flipped versus unflipped, scientists discovered that flipping creates better conditions for beneficial microorganisms to thrive, leading to more desirable flavors and higher enzyme activity. The findings suggest that flipping works by managing temperature and moisture, creating a simpler but more stable community of beneficial bacteria and fungi that work together to enhance the fermentation process.

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Rhizosphere Bacterial Communities Alter in Process to Mycorrhizal Developments of a Mixotrophic Pyrola japonica

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This study examined how bacteria living around plant roots change as fungi form partnerships with a plant called Pyrola japonica. Researchers identified three stages of fungal development and found that bacterial communities were most diverse when fungi had not yet colonized roots or when they were degenerating. The findings suggest that fungi help shape and maintain the bacterial communities around roots, creating a beneficial three-way partnership between plants, fungi, and bacteria.

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