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Tire microplastics may accelerate the spread of antibiotic resistance in cities

New research suggests that tire microplastics can create environmental hotspots that facilitate the persistence, transfer, and spread of antibiotic resistance genes through cities. The microplastics can develop dense microbial biofilms, release chemicals that select for resistant bacteria, and contribute to oxidative stress.

SourceShenyang Agricultural University Collaborative Journals·JournalBiocontaminant·TypeNews article·DateJul 28, 2026

Everyday levels of antibiotics in the environment may accelerate the global spread of resistance, new study finds

A new study shows that even small amounts of antibiotics in the environment can significantly accelerate the spread of antibiotic resistance genes among bacteria. The research found that low concentrations of antibiotics can stabilize existing resistance and promote the development of new resistance traits.

Fungi set the stage for life on land hundreds of millions of years earlier than thought

New research reveals fungi's deep timeline, dating back 1.4-0.9 billion years, which influenced ancient terrestrial ecosystems and shaped the evolution of life on land. The study uses rare genetic 'gene-swap' clues to overcome the fungal fossil record gap.

SourceOkinawa Institute of Science and Technology (OIST) Graduate University·JournalNature Ecology & Evolution·TypeData/statistical analysis·DateOct 1, 2025

Comprehensive metagenomic survey reveals vast gut microbiome diversity and antibiotic resistome across 14 mammal species on the Tibetan Plateau

This comprehensive metagenomic survey reveals vast gut microbiome diversity, with 21,902 species-level genome bins identified. The study also uncovers a significant reservoir of previously uncharacterized microbes and identifies high-risk antibiotic resistance genes across 14 mammal species.

SourceScience China Press·JournalScience China Life Sciences·DateSep 25, 2025

Fly vs. wasp: Stealing a defense move helps thwart a predator

Researchers found that fruit flies have stolen a toxin-producing gene from bacteria to defend against parasitic wasps, which can turn fly larvae into surrogate wombs for baby wasps. This discovery highlights the importance of horizontal gene transfer in animal evolution and suggests it may be more common than previously thought.

SourceUniversity of California - Berkeley·JournalCurrent Biology·TypeExperimental study·DateDec 23, 2024

Virus-like nanoparticles control the multicellular organization and reproduction of host bacteria

Researchers discovered that Streptomyces davawensis produces virus-like particles facilitating host reproduction. The particles contain an enzyme degrading genomic DNA, allowing for extracellular DNA release and scaffold creation. This finding reveals the exploitation mechanism of virus-related nanoparticles for bacterial proliferation.

SourceUniversity of Tsukuba·JournalNature Communications·DateJun 11, 2024

The rise of microbial cheaters in iron-limited environments

Researchers uncover evolutionary history of secreted iron uptake molecules in yeasts, revealing complex dynamics between cooperation and competition for this essential nutrient. Yeast species have developed alternative mechanisms to utilize siderophores without producing them, offering insights into the evolution of microbial strategies.

SourceSMBE Journals (Molecular Biology and Evolution and Genome Biology and Evolution)·JournalMolecular Biology and Evolution·TypeObservational study·DateApr 25, 2024

Major genetic meta-analysis reveals how antibiotic resistance in babies varies according to mode of birth, prematurity, and where they live

A recent study found that infants born via C-section have more antibiotic-resistant genes, while antibiotic use and prematurity fuel resistance. Infants from Africa had more resistant genes than those from Europe. Probiotics may help reduce the spread of antibiotic resistance in infants by targeting their gut microbiome.

How seaweed became multicellular

Researchers found that macroalgae acquired new genes for cell adhesion, differentiation, communication, and transport from viruses, which played a critical role in their evolution to multicellularity. The study provides valuable genomic resources for further studies on the biology of macroalgae.

SourceCell Press·JournalMolecular Plant·TypeExperimental study·DateApr 12, 2024

Discovery of primitive mitochondrial DNA replication enzymes

Researchers identified 10 new types of DNA polymerase involved in mitochondrial DNA maintenance, including rdxPolA, which is a direct descendant of the α-proteobacterial symbiont that gave rise to the first mitochondrion. The study provides critical insights into the early evolution of mitochondrial DNA maintenance machinery.

SourceUniversity of Tsukuba·JournalMolecular Biology and Evolution·DateFeb 29, 2024

Largest diversity study of ‘magic mushrooms’ investigates the evolution of psychoactive psilocybin production

Researchers have sequenced 52 Psilocybe specimens, including 39 species previously unsequenced, to understand the evolution of psychoactive psilocybin production. The study reveals two distinct gene orders within the psilocybin-producing gene cluster, suggesting an ancient split in the genus.

SourceUniversity of Utah·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateJan 9, 2024

Stolen genes allow parasitic control of behavior

Researchers discovered that parasites like horsehair worms use stolen genes to control host behavior. They found over 3,000 genes expressed more in manipulated hosts, suggesting the parasite produces its own proteins for manipulating nervous systems.

SourceRIKEN·JournalCurrent Biology·TypeExperimental study·DateOct 19, 2023

Could microplastics in soil introduce drug-resistant superbugs to the food supply?

Researchers warn that microplastics and nanoplastics in agricultural soils could contribute to antibiotic-resistant bacteria entering the food chain. This phenomenon is not well known, but studies suggest that plastics can act as vectors for transmitting pathogenic and antimicrobial resistant bacteria.

Virus-like transposons wage war on the species barrier

Researchers from IMBA identify a family of virus-like transposons called Mavericks that facilitate horizontal gene transfer (HGT) between reproductively isolated worm species. The study reveals the role of Mavericks in overcoming the species barrier, with potential applications in pathogen control and genomic innovation.

Complexity is a barrier to horizontal gene transfer

Researchers investigated factors influencing horizontal gene transfer (HGT) in bacteria, finding that divergence and protein connectivity interact to limit its success. The study supports the Complexity Hypothesis, suggesting that newly transferred genes struggle to engage in normal protein-protein interactions.

SourceSMBE Journals (Molecular Biology and Evolution and Genome Biology and Evolution)·JournalGenome Biology and Evolution·TypeData/statistical analysis·DateJun 16, 2023

Eye-opening origin story: Scientists trace key innovation in our camera-like vision to bacteria

Researchers at University of California - San Diego found that vertebrates acquired a special protein from bacteria more than 500 million years ago. This discovery reveals a new piece of genetic material introduced from foreign bacterial genes, leading to unique functionality in vertebrate eyes.

SourceUniversity of California - San Diego·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateApr 12, 2023

Designing more useful bacteria

Scientists create modified E. coli bacteria that cannot be infected by viruses while minimizing gene escape into the wild. This breakthrough technology has implications for reducing viral contamination in biotechnology production, such as insulin production and biofuel manufacturing.

SourceHarvard Medical School·JournalNature·TypeExperimental study·DateMar 15, 2023

Long-standing genomic mystery about the origins of introns explained in new study

A new study led by UCSC scientists suggests that introners are the source of most introns across species, providing a plausible explanation for their vast majority. The researchers found evidence of introners in 5.2% of surveyed eukaryotic species and suggest they may be a fundamental mechanism driving genomic complexity.

SourceUniversity of California - Santa Cruz·JournalProceedings of the National Academy of Sciences·DateNov 28, 2022

Microbial communities stay healthy by swapping knowledge

Biomedical engineers at Duke University found that high levels of horizontal gene transfer help keep microbiomes stable and efficient, allowing for the creation of bespoke systems for environmental cleanup and biofuel production. The study suggests a dynamic division of labor among microorganisms enables robustness and flexibility.

SourceDuke University·JournalNature Chemical Biology·TypeExperimental study·DateSep 1, 2022

A closer look into the emergence of antibiotic resistance in bioaerosols and its monitoring

Researchers explore the emergence of antibiotic resistance genes in bioaerosols, including sources and detection strategies. The study highlights the need for monitoring and understanding the relationship between human, animal, and environmental microbiomes to counter the spread of AR.

SourceNational Korea Maritime and Ocean University·JournalReviews in Environmental Science and Bio/Technology·TypeLiterature review·DateJun 30, 2022

Bacteria genes gave ancient plants traits to colonize land

Researchers found that hundreds of bacteria genes were integrated into ancient plants, granting them desirable traits for land colonization. The study suggests horizontal gene transfer played a significant role in land-plant evolution, allowing plants to adapt rapidly to new environments.

SourceCell Press·JournalMolecular Plant·TypeObservational study·DateMar 1, 2022

Hybrid microbes: Genome transfer between different bacteria strains explored

A recent study by biophysicists at the University of Cologne shows that bacteria can easily integrate genetic material from other bacterial strains, producing hybrid organisms with extensive genomic and functional changes. This horizontal gene transfer enables rapid evolution and can drive evolutionary processes efficiently.

SourceUniversity of Cologne·JournalProceedings of the National Academy of Sciences·DateMar 8, 2021