M. Beeby

Evolution of a large periplasmic disk in Campylobacterota flagella facilitated efficient motility alongside autoagglutination

The paper investigates the function of a large periplasmic disk in Campylobacter jejuni flagella, showing it facilitates motility and autoagglutination by bracing the motor during filament disentanglement.

A novel widespread bacterial structure related to the flagellar type III secretion system

The paper identifies a novel widespread bacterial structure related to the flagellar type III secretion system, suggesting its involvement in diverse cellular functions.

Periplasm homeostatic regulation maintains spatial constraints essential for cell envelope processes and cell viability

This study shows that elongated Lpp in E. coli counteracts periplasmic enlargement through homeostatic mechanisms involving Lpp tilting and abundance reduction, impacting cell envelope processes and viability.

Analysis of cell-cell bridges in Haloferax volcanii using Electron cryo-tomography reveal a continuous cytoplasm and S-layer

The paper uses electron cryo-tomography and fluorescence microscopy to study cell-cell bridges in Haloferax volcanii, revealing a continuous cytoplasm and S-layer enveloping the bridges.

Campylobacter jejuni motility integrates specialized cell shape, flagellar filament, and motor, to coordinate action of its opposed flagella in viscous media

This study investigates how Campylobacter jejuni coordinates its opposing flagella during swimming in viscous environments, revealing the role of its specialized flagellar structure and cell shape.

Bacterial flagellar motor PL-ring disassembly sub-complexes are widespread and ancient

The paper shows that bacterial flagellar motor PL-ring sub-complexes persist after disassembly across multiple phyla and are ancient, not recently transferred.

A tetRA-based promoter system for the generation of conditional knockouts in Campylobacter jejuni

This paper develops a tetRA-based promoter system for conditional knockouts in Campylobacter jejuni, enabling precise control of gene expression.

Giant flagellins form thick flagellar filaments in two species of marine γ-proteobacteria

The paper shows that two marine γ-proteobacteria produce thick flagellar filaments made from giant flagellins, revealing evolutionary mechanisms for their formation.

Simulations suggest a constrictive force is required for Gram-negative bacterial cell division

The paper uses simulations to show that a constrictive force is needed for Gram-negative bacterial cell division, as cell wall remodeling alone is insufficient.

γ-proteobacteria eject their polar flagella under nutrient depletion, retaining flagellar motor relic structures

The paper shows γ-proteobacteria eject their polar flagella under nutrient depletion, leaving behind motor relic structures in the outer membrane.