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

RNase J2 is a specificity factor that governs global mRNA stability in Bacillus subtilis

This study reveals that in *Bacillus subtilis*, RNase J2 functions primarily as a specificity co-factor that enhances RNase J1-mediated mRNA degradation to globally regulate mRNA stability and biofilm formation, rather than acting as an independent ribonuclease.

Christol, N., Goujout, M., Maes, A., Kamwouo, T., LeBlanc, H., LI, G.-W., Noirot-Gros, M.-F., Briandet, R., Condon, C. (…)2026-05-29
🦠 microbiology

Context-dependent siderophore exploitability shapes microbial community structure

This study demonstrates that siderophore-mediated iron competition in microbial communities is context-dependent, shaped by the interplay of siderophore types, uptake compatibility, and spatial organization, ultimately determining whether species coexist or exclude one another.

Krueger, A., Paik, S.-H., Bund, M., Pesch, M., Krueger, S., Lueckel, B., Papadopoulos, A., Hassan, T., Wiechert, J., Web (…)2026-05-29
🦠 microbiology

Phage RyR-domain proteins degrade ADPR-based immune signals and fuel NAD synthesis

This study identifies the mycobacteriophage protein RyDEP as a novel glycosidase that degrades stable cyclic ADP-ribose immune signals to neutralize bacterial Thoeris defenses and restore NAD, revealing an unexpected evolutionary link between phage anti-defense mechanisms and animal ryanodine receptor domains.

Lopez Rivera, M., Chang, R. B., Lewis, C. M., Hadary, R., Kovalski, J. M., Freeman, K. G., Sun, Z.-Y. J., Sorek, R., Hat (…)2026-05-29
🦠 microbiology

A precision-cut lung slice platform for evaluating respiratory virus replication dynamics

This paper introduces a rapid, scalable precision-cut lung slice (PCLS) platform that overcomes the limitations of cell lines and animal models by maintaining tissue viability and physiological complexity to effectively study respiratory virus replication, pathology, and immune responses.

Fusco, J. A., Liu, M., Huey, D., King, E. M., Panfil, A. R., Corps, K. N., Davis, I. C., Bowman, A. S., Warren, C. J.2026-05-29
🦠 microbiology

Monoclonal anti-dsRNA antibody-based metagenomics (MADAM) reveal Pyricularia oryzae mycovirome

This study introduces MADAM, a novel monoclonal anti-dsRNA antibody-based metagenomics approach that successfully characterized diverse RNA viruses and complex co-infections in *Pyricularia oryzae*, demonstrating its high efficiency and broad applicability for advancing fungal virology, diagnostics, and biological control.

Blondin, L., Filloux, D., Fernandez, E., Adreit, H., Huang, H., Fournier, E., Tharreau, D., Roumagnac, P.2026-05-28
🦠 microbiology

A fungal pathogen effector that shapes host plant microbiota kills bacteria through lipoteichoic acid binding and membrane disruption

This study reveals that the fungal pathogen *Verticillium dahliae* utilizes the effector protein VdAve1 to kill bacteria by binding to lipoteichoic acid and disrupting the plasma membrane, thereby shaping the host microbiota to facilitate colonization.

Petti, G., Snelders, N., Rout, A., Wang, B., Koenig, K., Siersma, T., Biboy, J., Vollmer, W., Hamoen, L. W., Mesters, J. (…)2026-05-26
🦠 microbiology

Novel compounds derived from AR-12 that demonstrate host-directed clearance of intracellular Salmonella enterica Serovar Typhimurium

Through a medicinal chemistry campaign optimizing the AR-12 scaffold, researchers developed novel analogs that significantly enhance host-directed clearance of intracellular multidrug-resistant *Salmonella* by disrupting the pathogen's exploitation of host vesicle-mediated transport systems, rather than relying on direct antibacterial activity.

Graham-Gurysh, E. G., Zahid, M. S. H., Varma, D. M., Landavazo, A., Namjoshi, O. A., Wilson, J. W., Johnson, M. M., Wood (…)2026-05-22
🦠 microbiology

Eukaryotic domestication of a bacterial immune protein following horizontal transfer

This study reveals how *Dictyostelium* amoebae recently acquired the bacterial immune protein TIR-STING via horizontal transfer and domesticated its potent NADase activity into a regulated eukaryotic cell death mechanism, providing a rare glimpse into the evolutionary transition of bacterial immunity to eukaryotic physiology.

Culbertson, E. M., Cruz-Lorenzo, E., Leon Padilla, J., Halfmann, M., Drurey, J. R., Lange, J. J., Li, Y., Garlapati, N. (…)2026-05-22
🦠 microbiology

The HOG MAPK - Transcription Factor CsAtf1 - CsErg5B Regulatory Module Mediates Conidial Germination and Fludioxonil Sensitivity in Colletotrichum siamense

This study identifies a novel HOG MAPK–CsAtf1–CsErg5B regulatory axis in *Colletotrichum siamense* that links high-osmolarity signaling to ergosterol homeostasis, thereby governing conidial germination and fludioxonil sensitivity.

Lin, Y., Wang, K., Guan, X., Song, M., Han, Z., Liu, W., Wu, W., Zhang, Y., Miao, W., Lin, C.2026-05-22