title: [Ultrastructural organizational characteristics of the hydrogen thermophilic bacterium, Pseudomonas thermophila].
abstract: The ultrastructural organization of the lithotrophic hydrogen bacterium Pseudomonas thermophila K2 was described for the first time and was found to be typical of Gram-negative bacteria. The ultrastructure of this organism is characterized by (i) irregular plication of the outer membrane of the cell wall and a very thin (2-3 nm) rigid layer; (ii) a considerable number of intracellular membranes differing in their structure and location; (iii) fragmentation of the cytoplasm involving the plasmalemma and the cell wall; (iv) the presence, in the nucleoid zone, of paracrystals having a hexagonal shape and resembling carboxysomes in their size, shape and macromolecular organization, which had not been found in hydrogen bacteria hitherto.
mesh_terms: D002462:Cell Membrane / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D008854:Microscopy, Electron; D011549:Pseudomonas / Q000648:ultrastructure*; D013045:Species Specificity
vernacular_title: Osobennosti ul'trastrukturnoĭ organizatsii vodorodnoĭ termofil'noĭ bakterii Pseudomonas thermophila.