16S rRNA gene sequencing

Issues on microbial soil remediation: a case of Cd detoxification by Bacillus strains for alleviating heavy metal stress in crop plants

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This research paper identifies critical problems in how scientists are using bacteria to clean up cadmium-contaminated soil for farming. The authors found that researchers often incorrectly identify which species of Bacillus bacteria they are using, don’t properly check if the bacteria are safe for humans and animals, and use unrealistically high levels of contamination in experiments that don’t reflect real-world conditions. The paper calls for better standards in this research to ensure that microbial remediation techniques are accurate, safe, and actually applicable to real contaminated farmland.

Streptomyces antarcticus sp. nov., isolated from Horseshoe Island, Antarctica

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Scientists discovered a new type of bacteria called Streptomyces antarcticus in Antarctic soil that can survive extreme cold and produce valuable compounds. This bacterium can make antibiotics, cancer-fighting molecules, and other useful substances, making it potentially useful for medicine and industry. The bacteria also has genes to break down pharmaceutical pollutants and adapt to harsh conditions, suggesting applications in cleaning up contaminated environments.

Microbial community diversity and geochemistry inform bioremediation of molybdenum-contaminated groundwater

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When coal plants burn coal, they produce waste that can contaminate groundwater with molybdenum, a toxic element. Scientists studied how bacteria naturally found in contaminated groundwater can be used to clean up this pollution. They discovered that certain bacteria can tolerate high molybdenum levels and safely remove it from water by storing it inside their cells using a detoxification system similar to how our bodies handle toxins.

Bioremediation Potential of Indigenous Bacterial Isolates for Treating Petroleum Hydrocarbons-Induced Environmental Pollution

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Scientists isolated three types of bacteria from soil near auto repair shops that can break down petroleum oil pollutants. When tested in the laboratory, these bacteria degraded between 55-83% of petroleum hydrocarbons over 12 days by converting them into simpler compounds. These findings suggest these naturally occurring bacteria could offer an affordable and environmentally-friendly way to clean up oil-contaminated soil without the harmful side effects of chemical cleanup methods.

Neobacillus terrisolis sp. nov. and Neobacillus solisequens sp. nov. Isolated from Soil

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Scientists discovered two new species of bacteria in soil from a heavy metal smelting plant in China and named them Neobacillus terrisolis and Neobacillus solisequens. These bacteria can produce hydrogen sulfide, which helps capture and remove toxic heavy metals from contaminated soil. The research shows these microbes could be useful for cleaning up polluted environments through natural biological processes rather than expensive chemical treatments.

Microbial diversity at remediated former gold and copper mines and the metal tolerance of indigenous microbial strains

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This research examined microorganisms living in abandoned gold and copper mines in the Czech Republic to understand how they survive in toxic, metal-rich environments. Scientists identified bacteria and fungi that can tolerate high concentrations of heavy metals and other contaminants. These microorganisms could potentially be used to clean up polluted mine water naturally, offering a sustainable alternative to traditional treatment methods.

Effect of Cordyceps militaris Residue and Lactiplantibacillus plantarum on Fermentation Quality and Bacterial Community of Alfalfa Silage

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This research shows that waste leftover from growing medicinal mushrooms (Cordyceps militaris) can be effectively reused as an additive to improve the quality of stored animal feed (alfalfa silage). When the mushroom residue was added, it boosted beneficial bacteria that produce lactic acid, which preserved the feed better and reduced ammonia content. This finding offers an environmentally friendly way to reduce waste while simultaneously improving livestock feed quality.

Mushroom stem-based diets elicit region-specific shifts in rainbow trout gut microbiota

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Researchers tested whether mushroom stem waste products could be used as sustainable fish feed ingredients. When juvenile rainbow trout were fed diets containing 30% mushroom stems from three different species, their gut bacteria changed in beneficial ways without harming the intestinal lining. Different parts of the gut showed different bacterial responses, with the most beneficial effects being increased growth of helpful bacteria like Mycoplasma and Legionella. This research suggests mushroom processing byproducts could improve aquaculture sustainability while supporting fish health.

Screening, Identification, and Fermentation Optimization of the Antagonistic Actinomycete Strain TCS21-117 Against Botrytis cinerea

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Scientists isolated a beneficial bacterium called Streptomyces roietensis from soil that effectively fights gray mold, a serious fungal disease affecting crops worldwide. They identified the strain and optimized growing conditions to maximize production of antifungal compounds, achieving 93% effectiveness against gray mold. This discovery offers a natural, environmentally-friendly alternative to chemical fungicides for protecting agricultural crops, potentially reducing crop losses and environmental pollution.

Genetic Characterisation of the Bacterial Microbiota Associating With a Strain of Epichloë Fungal Endophyte of Perennial Ryegrass and the Interaction With Its Paenibacillus Members

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Researchers discovered that cultures of a fungal endophyte found in perennial ryegrass contain complex bacterial communities dominated by Paenibacillus bacteria. These bacterial cells live on the surface of fungal filaments and regulate each other’s populations through antagonistic interactions, with one strain (E300) acting as a keystone species that controls the community structure. Despite these dynamic bacterial changes, the fungal host’s growth remained unaffected, suggesting a balanced symbiotic relationship important for the grass’s agricultural performance.

Research Keyword: 16S rRNA gene sequencing