Pathogen priming reveals host immune training and microbiome conditioning in corals

This study demonstrates that chronic exposure to non-lethal concentrations of *Vibrio coralliilyticus* primes the coral holobiont through microbiome conditioning and immune gene modulation, significantly enhancing its resilience against subsequent heat-stress-induced infections and challenging the notion that coral immunity is strictly innate.

Monti, M., Garcias-Bonet, N., Garcia, F. C. + 10 more2026-04-07🦠 microbiology

Discovery of resistance-resilient quinoline papain-like protease inhibitors through topology-constrained molecular generative design

Using an AI-driven topology-constrained molecular generative model combined with structure-guided optimization, researchers discovered GZNL-2016, a novel quinoline-based papain-like protease inhibitor that demonstrates potent antiviral activity against drug-resistant SARS-CoV-2 variants and favorable pharmacokinetic properties in vivo.

Lu, Y., Ran, T., Yang, Q. + 19 more2026-04-06🦠 microbiology

Expanding vaginal microbiome pangenomes via a custom MIDAS database reveals Lactobacillus crispatus accessory genes associated with cervical dysplasia

By constructing a custom MIDAS pangenome database from over 18,000 vaginal genomes, researchers uncovered specific *Lactobacillus crispatus* accessory genes associated with cervical dysplasia, demonstrating the critical value of body site-specific reference resources for revealing intraspecies microbial variation in reproductive health.

Dubin, C. A., Zhao, C., Pollard, K. S. + 3 more2026-04-06🦠 microbiology

Bovine H5N1 influenza viruses have adapted to more efficiently use receptors abundant in cattle

Bovine H5N1 influenza viruses have acquired specific haemagglutinin mutations (D104G and V147M) that enable efficient binding to N-glycolylneuraminic acid receptors abundant in cattle, thereby enhancing viral fitness in dairy herds while maintaining replication capacity in human cells without significantly increasing immediate zoonotic risk.

Hassard, J. A., Yang, J., Dadonaite, B. + 36 more2026-04-06🦠 microbiology

Methanol-specific methyltransferase isozymes have large carbon kinetic isotope effects that impact methane isotopic signatures

This study identifies the methanol-specific methyltransferase complex (MTA) as the source of unusually large carbon and hydrogen kinetic isotope effects during methanol-based methanogenesis, demonstrating that these effects are consistent across different MTA isozymes and remain rate-limiting under environmental conditions, thereby providing a biochemical basis for using methane isotopic signatures to trace methanol-derived sources.

Gropp, J., Stolper, D. A., Nayak, D. D.2026-04-06🦠 microbiology

Atlas of HIV cis-regulatory elements reveals extensive transcriptional variation across clades, isolates, and within individuals

By integrating massively parallel reporter assays with comparative sequence analysis across diverse HIV isolates and cell types, this study constructs a comprehensive regulatory atlas that reveals extensive, non-consistently selected transcriptional variation driven by distinct transcription factor configurations and conserved intragenic elements, ultimately enabling accurate sequence-based prediction of viral transcriptional activity.

Engin, B., ElSadec, M. Y., Finkelberg, J. A. + 18 more2026-04-06🦠 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. + 5 more2026-04-05🦠 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. + 2 more2026-04-05🦠 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