Heidi A. Arjes

TL;DR: It is found that potassium ion channel-mediated electrical signaling generated by a Bacillus subtilis biofilm can attract distant cells and influence the behavior of diverse bacteria at a distance through long-range electrical signaling.

TL;DR: In this article, it was shown that inhibiting division in Bacillus subtilis and Staphylococcus aureus quickly leads to an arrest in the initiation of new rounds of DNA replication, followed by a complete arrest in cell growth.

TL;DR: It is found that when oxygen was depleted from stationary phase B. subtilis cultures, ∼90% of cells died while the remaining cells maintained colony-forming ability and it is demonstrated that antimicrobials that depolarize cell membranes can benefit cells when the terminal electron acceptor in respiration is limiting.

TL;DR: The data suggest that FtsZ, and potentially other enzymes whose assembly is similarly regulated, can compensate for defects in catalysis through increases in substrate binding and subunit-subunit interactions.

TL;DR: This work determined that background absorbance quantification and multiple passaging cycles allow for accurate growth rate measurements even in carbon-poor media, which was used to reveal growth-rate increases during long-term laboratory evolution of Escherichia coli and demonstrated that maximum growth rate depends on initial cell density.