Browsing by Author "Ariel, Gil"
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Item Antibiotic-Induced Anomalous Statistics of Collective Bacterial Swarming(American Physical Society, 2015) Benisty, Sivan; Ben-Jacob, Eshel; Ariel, Gil; Be’er, Avraham; Center for Theoretical Biological PhysicsUnder sublethal antibiotics concentrations, the statistics of collectively swarmingᅠBacillus subtilisᅠtransitions from normal to anomalous, with a heavy-tailed speed distribution and a two-step temporal correlation of velocities. The transition is due to changes in the properties of the bacterial motion and the formation of a motility-defective subpopulation that self-segregates into regions. As a result, both the colonial expansion and the growth rate are not affected by antibiotics. This phenomenon suggests a new strategy bacteria employ to fight antibiotic stress.