🦠 Category

microbiology

653 papers

Microbiology explores the invisible world of tiny life forms that shape our health, environment, and even the air we breathe. From bacteria and viruses to fungi and parasites, this field investigates how these microscopic organisms interact with us and each other, driving everything from disease outbreaks to beneficial fermentation processes. Understanding them is crucial for developing new medicines, improving food safety, and combating global health challenges.

At Gist.Science, we make the latest discoveries in this dynamic field accessible to everyone. We process every new preprint uploaded to bioRxiv in this category, transforming dense academic findings into both clear, plain-language explanations and detailed technical summaries. This ensures that whether you are a student, a researcher, or simply curious, you can grasp the significance of cutting-edge science without getting lost in jargon.

Below are the most recent papers in microbiology, curated and summarized directly from the bioRxiv server to keep you at the forefront of discovery.

🦠 microbiology

Similarities Between Antibiotic-Resistant Escherichia coli from Raw Meat, Commercial Raw Dog Food and Those Causing Extraintestinal Human Infections: A Contemporaneous Geographically Focussed Genomic Epidemiology Study

This geographically focused genomic study confirms a close phylogenetic link between antibiotic-resistant *E. coli* found in raw meat and commercial raw dog food and those causing human infections in Bristol, UK, supporting the need for stricter microbiological standards for raw pet food and improved risk communication.

Sealey, J. E., Astley, B., Sealey, K. L., Daum, A. M., Kiziltan, D., Wright, L., Williams, P., Avison, M. B.2026-04-05
🦠 microbiology

A conserved in-frame stop codon acts as a multipotent defense mechanism in alphaviruses

This study reveals that a conserved in-frame opal stop codon in alphaviruses serves as a multipotent defense mechanism by facilitating proper polyprotein processing and viral spherule integrity, thereby enabling the virus to evade RNAi-mediated and other innate immune responses in both insect and vertebrate hosts.

Bhattacharya, T., Freeman, T. S., Alleman, E. M., Wang, F., Chechik, L., Emerman, M., Myles, K. M., Malik, H. S.2026-04-05
🦠 microbiology

Genomic Insights into a Multispecies Bacterial Pathogen Complex Driving Bacterial Blotch in White Button Mushrooms.

This study redefines bacterial blotch in white button mushrooms as a multispecies disease complex driven by a diverse array of *Pseudomonas* species, including the previously unassociated *P. azotoformans*, thereby challenging the traditional single-pathogen paradigm and highlighting the urgent need for genomics-informed diagnostic strategies to ensure the sustainability of mushroom cultivation.

Mudiyanselage, S. D., Lee, M., Huguet-Tapia, J. C., Gazis, R., Martins, S. J.2026-04-05
🦠 microbiology

The tobacco hornworm as a novel host for the study of bacterial virulence

This study establishes the tobacco hornworm (*Manduca sexta*) as a sensitive and informative novel model for investigating *Pseudomonas aeruginosa* virulence, demonstrating that the insect exhibits dose-dependent mortality, growth impairment, and heterogeneous responses to infection driven by secreted bacterial products, while offering superior analytical capabilities compared to the commonly used wax moth.

Spencer, E. K., Miller, C., Bull, J. J.2026-04-05
🦠 microbiology

Carbapenem-resistant Klebsiella pneumoniae lineage CG307 displays urinary tract tropism

This study identifies the emerging carbapenem-resistant *Klebsiella pneumoniae* lineage CG307 as a distinct pathogen spreading across the Southern US that possesses unique genetic and phenotypic adaptations, including a novel capsule and high urease activity, which specifically drive its increased prevalence and virulence in urinary tract infections.

Buchan, K. D., Duran Ramirez, J. M., Gomez, J. M., Cruz, T. R., Volkan, E., Sandoval, M. N., Shea, A. E., Walker, J. N. (…)2026-04-04
🦠 microbiology

Population-level genome sequencing reveals distinct Mycobacterium tuberculosis intrahost mutational trajectories in simian immunodeficiency virus co-infected and antiretroviral treated non-human primates

This study utilizes population-level whole-genome sequencing of *Mycobacterium tuberculosis* in non-human primates to reveal distinct intrahost mutational trajectories and increased bacterial diversification driven by SIV coinfection and antiretroviral therapy, highlighting specific selection pressures on lipid metabolism and oxidative damage response genes.

Chao, M. C., Chase, M. R., Wakabayashi, S., Vickers, A., Roman, B., Hopkins, F., Culviner, P. H., Marin, M. G., Maiello (…)2026-04-04
🦠 microbiology

Increased S. epidermidis in the airway-gut microbiome of infants with bronchopulmonary dysplasia

This study utilizes shotgun metagenomic sequencing of tracheal aspirate and stool samples from 39 preterm infants to demonstrate that an enrichment of skin-associated bacteria, particularly *Staphylococcus epidermidis*, in both the lung and gut microbiomes is significantly associated with the development of bronchopulmonary dysplasia.

Solomon, Z., Eno, M., Thompson, S., Rager, S., Jin, J., Zeng, M., Keerthy, D., Worgall, S., Johnson, E., Heras, A.2026-04-04
🦠 microbiology

Alterations of gut microbiota in Down syndrome and their association with Alzheimer's disease

This study reveals that adults with Down syndrome exhibit specific gut microbiota alterations, including reduced *Roseburia* abundance, which are associated with cognitive decline and elevated plasma Alzheimer's disease biomarkers, suggesting a gut-brain axis link similar to that observed in typical Alzheimer's disease.

Pellegrini, C., Ravaioli, F., De Fanti, S., Sala, C., Rochat, M., Pollarini, V., Polischi, B., Pasti, A., Grasso, M., Ra (…)2026-04-04