An Observation on the Ultrastructure of El Tor Vibrio Cholerea during Simulated Overwintering-A Alternated Phenomenon between Threadshaped form and Bactenum form
LIU Duan , LI Feng, MENG Fan - Uang, et al. Institute of Epidemiology & Microbiology, Chinese Academy of Preveritive Medicine, Beijing 102206, China
Objective To explore the overwintering mechanism of Evc. Methods We observed EVc' s survival process during simulated ovenvintering in the acmatic environment by microscope, fluorescope and electron microscope.Results The results was con-firmed in water environment, the EVc altemated between tlireadsliaped form and bacterial form .Some celis died and other survived through latent- growth sequence.The sequence variant included threadshaped form, sphericol bodies, large bodies, sniall dense parti-cles, small grani positive celi. Condusions We observed a new multiplicative division pattem of bacterial crvptic growth celis, it may be widespread existence of gram negative cell in nature.