Distinct virus-specific regulation of RNA synthesis across genome segments by thogotovirus polymerases: insights from Oz virus and Dhori virus

This study reveals that while thogotoviruses utilize a distal duplex structure for RNA synthesis, Oz virus and Dhori virus differ in their reliance on specific base pairs at positions 5'12/3'11 within this structure to regulate segment-specific promoter activity, suggesting a genus-wide divergence in transcriptional control mechanisms.

Rakib, T. M., Mashimo, R., Akter, L. + 4 more2026-04-01🦠 microbiology

The switch from bacterial phosphorus mineralization to arbuscular mycorrhiza in root hairless wheat during crop development

This study reveals that during wheat development under phosphorus-depleted conditions, phosphorus acquisition shifts temporally from bacterial mineralization to arbuscular mycorrhizal fungi, with the root hairless mutant relying on enhanced fungal colonization rather than recruiting bacterial partners to compensate for its lack of root hairs.

Herms, C., Tsang, I., Bak, F. + 8 more2026-03-31🦠 microbiology

Antimicrobial Combination Effects at Sub-inhibitory Doses do not Reliably Predict Effects at Inhibitory Concentrations

This study demonstrates that sub-inhibitory measurements of antimicrobial drug combinations frequently fail to predict their interactions at clinically relevant inhibitory concentrations due to concentration- and ratio-dependent shifts in synergy or antagonism, necessitating pharmacodynamic assessments across the full range of therapeutic doses.

Muetter, M., Angst, D. C., Regoes, R. R. + 1 more2026-03-31🦠 microbiology

Contrasting population structures coexist in a strain-resolved estuarine microbiome

By applying advanced Nanopore sequencing and the myloasm assembler to a South San Francisco Bay microbiome, researchers achieved unprecedented strain-level resolution revealing that fundamentally different evolutionary strategies—ranging from highly diverse, phage-driven populations to nearly monotypic lineages—coexist within a single sample, marking a decade-long milestone in recovering complete *Pelagibacter* genomes from metagenomes.

Lui, L. M., Nielsen, T.2026-03-31🦠 microbiology

Body-wrapping anterior flagella drive ultrafast swimming in bacterial zoospores

This study reveals that *Actinoplanes missouriensis* zoospores achieve record-breaking swimming speeds of approximately 500 body lengths per second through a unique propulsion mechanism involving a synchronously rotating, anterior body-wrapping flagellar bundle, demonstrating that supramolecular flagellar organization rather than motor speed alone dictates the upper limits of bacterial motility.

Uemura, N. A., Ishida, T., Sowa, Y. + 4 more2026-03-31🦠 microbiology

A replication-centered phylogeny illuminates the evolutionary landscape of bacterial plasmids

This study introduces PInc, a replication-centered classification framework based on conserved winged-helix domains in replication initiation proteins, which resolves deep evolutionary relationships and reveals the global diversity of nearly 100,000 bacterial plasmids, overcoming the limitations of traditional host-based and nucleotide-similarity typing schemes.

Nishimura, Y., Kaneko, K., Kamijo, T. + 13 more2026-03-30🦠 microbiology

A Droplet Digital PCR Assay for Quantification of Bacteriophage Viral Vector Titer and Purity.

This paper presents an optimized droplet digital PCR (ddPCR) assay that utilizes unique DNA barcodes and design of experiments to accurately quantify the titer and purity of bacteriophage vectors, overcoming the limitations of traditional biological activity assays by providing high precision and correcting for systemic errors in vector characterization.

Voorhees, P. J., Ponek, R. M., Liu, J. D. + 1 more2026-03-30🦠 microbiology

A Machine Learning Framework for Serogroup Classification of pathogenic species of Leptospira Based on rfb Locus Profiles

This study presents a two-stage machine learning framework that accurately predicts *Leptospira* serogroups directly from *rfb* locus genomic profiles, offering a scalable alternative to traditional serological assays and introducing the concept of "seroclass" to better organize antigenic diversity.

de Carvalo Ferreira Filho, E., Melo Arruda, P., Cabral Afonso Ferreira, L. + 2 more2026-03-30🦠 microbiology

ONETest PathoGenome: A Multi-Cohort Evaluation of an Optimized NGS Assay for Detection of Lower Respiratory Pathogens in Bronchoalveolar Lavage

The ONETest PathoGenome assay, an optimized hybrid-capture metagenomic NGS test, demonstrates high sensitivity and specificity for detecting lower respiratory pathogens in bronchoalveolar lavage samples, significantly improving diagnostic yield and turnaround time compared to conventional culture and whole-metagenome shotgun sequencing.

Massoumi Alamouti, S., Nguyen, H. D., Daneshpajouh, H. + 9 more2026-03-30🦠 microbiology

Characterisation of vaginal Lactobacillus isolates from South African women towards the development of a biotherapeutic to optimise the vaginal microbiome

This study characterizes vaginal *Lactobacillus* isolates from South African women and identifies *L. crispatus* strains as the most promising candidates for a tailored live biotherapeutic due to their superior acidification, low inflammatory response, and population-specific genomic features.

Wilson, J., Amir Hamzah, A. S., Jordan, C. + 19 more2026-03-30🦠 microbiology