title: Interplay between energetics and dynamics in bacterial motility.
abstract: We study how self-propelled organisms administer their energetic resources in order to optimize space exploration. Noting the existence of two very different time scales, we use a quasistatic approximation to analyze the relation between bacterial dynamics and changes in the energy stored by a bacterium. We then find both steady-state and time-dependent solutions for the bacterial speed and stored energy. The model also predicts the volume of the region that a bacterium may visit in a resource-depleted medium.
authors.affiliation: IFEG-CONICET and FaMAF, Universidad Nacional de Córdoba, 5000 Córdoba, Argentina.
authors.forename: C A
authors.initials: CA
authors.lastname: Condat
authors.forename: Mario E
authors.initials: ME
authors.lastname: Di Salvo
mesh_terms: D000465:Algorithms; D001422:Bacterial Adhesion; D018407:Bacterial Physiological Phenomena; D001703:Biophysics / Q000379:methods; D002633:Chemotaxis; D003470:Culture Media / Q000378:metabolism; D004926:Escherichia coli / Q000502:physiology; D008954:Models, Biological; D015233:Models, Statistical; D008962:Models, Theoretical; D009068:Movement; D013997:Time Factors
chemical_list: D003470:Culture Media