1887

Abstract

SUMMARY: The organism Peshkoff, a very large, Gram-negative, peritrichously flagellated bacterium of unusual structural complexity, which Peshkoff (1940) found in cow dung near Moscow, has been isolated in pure culture from Cambridgeshire cow dung.

The organism grows only poorly on routine nutrient agar, but thrives on yeast-extract+meat-extract agar, especially if supplemented with small amounts of sodium acetate. In liquid media it does not multiply, but very small concentrations of agar are sufficient to enable it to grow.

Individual cells of have a diameter of 2·5–3·2 . and are 10–30 . long or longer. They divide by binary fission like ordinary bacteria but have in reality a chambered, many-celled structure which gives the organisms a superficial resemblance to filamentous Cyanophyceae. The cell units are either discoid or shortly cylindrical and contain configurations of Feulgen-positive chromatinic bodies, similar to, but more complex than, those found in ordinary bacteria. We regard them as nuclear structures.

The provisional name of is proposed for another very large, Gram-negative, filamentous bacterium of unusual morphology, very different from , also found in cow dung. The new organism is peritrichously flagellated and grows in filaments, 1·5 . wide and up to 200 . long. The component cells of the filaments are few in number and exceedingly long, often 20–50 . Fragmentation into smaller units, which is the usual fate of filamentous forms in ageing cultures of ordinary bacteria, was never observed in

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1947-09-01
2022-01-25
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References

  1. Klieneberger E., Smiles J. 1942; Some new observations on the developmental cycle of the organism of bovine pleuropneumonia and related microbes. J. Hyg., Camb 42:110
    [Google Scholar]
  2. Klieneberger-Nobel E. 1945; Changes in the nuclear structure of bacteria, particularly during spore formation. J. Hyg., Camb 44:99
    [Google Scholar]
  3. Migula W. 1897 System der Bakterien 1 Jena:
    [Google Scholar]
  4. Peshkoff M. A. 1938; Parallel study of stained and live nuclei of Achromobacter Epsteinii. Biol. J. (Russ.) 7:1035
    [Google Scholar]
  5. Peshkoff M. A. 1940; Phylogenesis of new microbes, Caryophanon latum and Caryophanon tenue, organisms which are intermediate between blue-green algae and the bacteria. (Detailed summary in English.). J. gen. Biol. (Russ.) 1:598
    [Google Scholar]
  6. Peshkoff M. A. 1946; Fine structure and mechanism of division of the ‘nuclei’ of the bacterium Caryophanon latum. Nature; Lond: 157137
    [Google Scholar]
  7. Piekarski G. 1937; Cytologische Untersuchungen an Paratyphus und Coli-bakterien. Arch. Mikrobiol 8:428
    [Google Scholar]
  8. Plotho O. v. 1940; Die chromatische Substanz bei Actinomyceten. Arch. Mikrobiol 11:285
    [Google Scholar]
  9. Pringsheim E. G. 1937; Beiträge zur Physiologie saprophytischer Algen und Flagellaten. I. Planta 26:631
    [Google Scholar]
  10. Pringsheim E. G. 1946 Pure Cultures of Algae Cambridge University Press;
    [Google Scholar]
  11. Robinow C. F. 1944; Cytological observations on Bact. coli, etc. J. Hyg., Camb 43:413
    [Google Scholar]
  12. Robinow C. F. 1945; Addendum to The Bacterial Cell, by René J.Dubos. Cambridge, Mass: Harvard University Press;
    [Google Scholar]
  13. Smith E. F. 1905 Bacteria in Relation to Plant Diseases 1220 Washington D.C: Carnegie Institute of Washington;
    [Google Scholar]
  14. Vendrely R. 1946 Les deux acides nucléiques bactériens et leur signification Congrès de Chimie Biologique de Liège (Octobre 1946)
    [Google Scholar]
  15. Vendrely R., Lipardy J. 1946; Acides nucléiques et noyaux bactériens. C.R. Acad. Sci., Paris 223:342
    [Google Scholar]
  16. Wendler-Deane H. 1945; Studies on malarial parasites. II. The staining of two primate parasites by the Feulgen technique. J. cell. comp. Physiol 26:139
    [Google Scholar]
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