Research Keyword: Mobile genetic elements

Microplastics and antibiotic resistance genes as rising threats: Their interaction represents an urgent environmental concern

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Tiny plastic particles called microplastics are spreading through our environment and creating a dangerous partnership with antibiotic-resistant bacteria. When these plastics accumulate in soil, water, and even food, they carry bacteria with genes that resist antibiotics, making infections harder to treat. This combined threat to human health can spread through wind, water, and the food chain, requiring urgent action to reduce plastic pollution and antibiotic overuse.

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Roles of mobile genetic elements and biosynthetic gene clusters in environmental adaptation of acidophilic archaeon Ferroplasma to extreme polluted environments

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Scientists discovered how a special acid-loving microorganism called Ferroplasma survives and thrives in highly polluted mine drainage environments rich in dangerous heavy metals. The study revealed that these microorganisms use special genetic elements like jumping genes and metabolite-producing genes to adapt to these extreme conditions, enabling them to help clean up pollution. This discovery could lead to better biological methods for treating contaminated environments and making water safer near old mining sites.

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Complete genome sequence of Pseudomonas sp. PP3, a dehalogenase-producing bacterium, confirms the unusual mobile genetic element DEH

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Scientists completed the full genetic sequence of a special bacterium called Pseudomonas sp. PP3 that can break down harmful chlorinated chemicals used in herbicides and pesticides. The bacterium carries unusual mobile genetic elements that contain genes for dehalogenase enzymes, which enable it to remove chlorine atoms from these pollutants. This discovery helps us understand how bacteria can be used to clean up contaminated soil and water. The research confirms that this organism is closely related to another known Pseudomonas species and provides valuable information for developing better bioremediation strategies.

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Occurrence and Distribution of Antibiotics and Antibiotic Resistance Genes in the Water and Sediments of Reservoir-Based Drinking Water Sources in Henan, China

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This study examined three drinking water reservoirs in China to understand how antibiotic-resistant bacteria spread through water and sediment. Researchers found that mobile genetic elements (like integrons) play a bigger role than antibiotics themselves in spreading resistance genes among bacteria. One reservoir, Jian’gang, naturally removed most resistance genes as water flowed through, suggesting its natural purification processes are quite effective. Understanding how these factors work together helps protect drinking water supplies from antibiotic-resistant bacteria.

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Gene transfer between fungal species triggers repeated coffee wilt disease outbreaks

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A new study found that coffee wilt disease, which has caused major crop losses in Africa, has repeatedly emerged due to genes jumping between different fungal species. These genes travel via special mobile DNA elements called Starships, which act like genetic vehicles carrying pathogenic genes from one fungus to another. When Fusarium fungi exchanged genes this way, they became better at infecting different varieties of coffee plants. Understanding how these genes move is crucial for protecting coffee crops from future disease outbreaks.

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Gene transfer between fungal species triggers repeated coffee wilt disease outbreaks

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A new study reveals that coffee wilt disease, which has destroyed coffee crops across Africa, emerges repeatedly because of gene-swapping between different fungal species. Scientists discovered that large chunks of DNA called ‘Starships’ act like genetic delivery vehicles, transferring disease-causing genes from one fungus to another. This genetic exchange allows the pathogen to adapt and infect different coffee plant species, causing successive outbreaks. Understanding this mechanism could help protect global coffee production in the future.

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