Structural Properties and Features of Parasitic Bdellovibrio bacteriovorus

摘要: The structure of five parasitic strains Bdellovibrio bacteriovorus was studied by electron microscope after negative staining and in shadow-case etched freeze-fractured preparations. Special attention paid to the cell wall flagellar sheath which is continuous with or part it. These structural components reveal distinct features are induced certain substances; they exceedingly susceptible disruption physical treatments, old cells often appear impaired. In shows characteristic fracturing tendencies not known other microorganisms. properties sheath, integrity a fundamental requirement for infectivity survival this organism. anterior end differentiated: 6 12 ring-like structures (9 nm, outer diameter) built into its several fibers (7 10 nm wide, up 1.5 μm long) emerge from Intracellular structures, revealed as compact oval bodies bulging border have internal laminated organization, compounds. findings on substantiate previous observations indicating uniqueness organism add criteria identification genus. Images