title: Antibacterial activity of seawater and microvibrion-predators (Microvibrio marinus Roscoffensis) in it.
abstract: In the seawater of the Atlantic Ocean and surface waters of different points of the World Ocean, including arctic basins and equatorial regions, microvibrion-predators of bacterial cells have been discovered. The number of microvibrions in the surface waters of the English Channel reaches a thousand cells per ml, but it varies, depending on the season. In this article a method of the separation and culture of microvibrions is described. The ultrastructure of two strains of microvibrions was investigated and a similarity found between their structure and Gram-negative bacteria. The distinctive features of microvibrions are their sea derivation and the ability to reproduce only in the presence of bacteria, without penetrating bacterial cells. To a certain extent, the antibacterial activity of seawater is connected with the presence in it of microvibrions.
mesh_terms: D000898:Antibiosis; D001433:Bacteriolysis; D004755:Enterobacteriaceae / Q000502:physiology; D004926:Escherichia coli / Q000502:physiology; D012621:Seasons; D012623:Seawater; D014733:Vibrio / Q000502:physiology / Q000648:ultrastructure; D014871:Water Microbiology; D014876:Water Pollution