title: [Bacterial motion in porous media].
abstract: The motion of chemotactically different Escherichia coli C600, cheB287, and AW405 cells was studied using a column packed with silica gel. The model chemotaxis of bacteria in porous media seems to be adequate to natural bacterial chemotaxis in soils. The porous structure of silica gel prevents interfering convective flows. Silica gel columns make it possible to separate bacterial cells differing in motility and chemotaxis. Relevant physical phenomena are discussed. The concept of fast and slow chemotaxis is considered.
authors.affiliation: State Research Center for Applied Microbiology, Ministry of Public Health, Russian Federation, Moscow Oblast, Obolensk, 142279 Russia. zavalsky@obolensk.org
authors.forename: L Iu
authors.initials: LIu
authors.lastname: Zaval'skiĭ
authors.forename: A G
authors.initials: AG
authors.lastname: Voloshin
mesh_terms: D002633:Chemotaxis; D004926:Escherichia coli / Q000502:physiology*; D005782:Gels / Q000737:chemistry; D009068:Movement; D012822:Silicon Dioxide
chemical_list: D005782:Gels; D012822:Silicon Dioxide