1887

Abstract

SUMMARY: Myxococci are distinguished from other bacteria by the complete lack of a cell membrane as well as of transverse septa. Even the microcyst is enclosed by an outer layer which differs from a bacterial cell wall. In cytological character the young stages in the life cycle resemble other bacteria in so far as they contain two to four small nuclear structures or ‘chromosomes’ arranged transversely in the cell and dividing longitudinally. Older organisms about to form microcysts differ; they contain two fairly large nuclear structures which fuse to form a round chromatinic body. At the same time the cell shortens until a round organism containing one large, round, darkly staining nuclear body is formed. This ‘fusion cell’ can be compared to a zygote though it is not yet the resting cell of the species. The fusion cell becomes oval, its nucleus divides into two, and its outer layer becomes tough and dense. Thus the microcyst is formed. When it germinates its outer layer disappears, and the cell is transformed by elongation into the young vegetative organism.

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/content/journal/micro/10.1099/00221287-1-1-33
1947-01-01
2022-01-19
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References

  1. Badian J. 1930; Zur Zytologie der Myxobakterien.. Acta Soc. Bot. Polon. 7:55
    [Google Scholar]
  2. Badian J. 1933; Eine zytologische Untersuchung fiber die Myxobakterie Polyangium fuscum. . Acta Soc. Bot. Polon. 10:361 Polish with German summary
    [Google Scholar]
  3. Beebe J.M. 1941; The morphology and cytology of Myxococcus xanthus, n.sp.. J. Bad. 42:193
    [Google Scholar]
  4. Klieneberger-Nobel E. 1945; Changes in the nuclear structure of bacteria, particularly in spore formation.. J. Hyg., Corrib. 44:99
    [Google Scholar]
  5. Klieneberger-Nobel E. 1947; The life cycle of sporing Actinomycetes as Tevealed by a study of their structure and septation.. J. gen. Microbiol. 1:22
    [Google Scholar]
  6. Krzemieniewski H., S. 1928; Zur Morphologie der Myxobakterienzelle.. Acta Soc. Bot. Polon. 5:46
    [Google Scholar]
  7. Robinow C.F. 1942; A study of the nuclear apparatus of bacteria.. Proc. Boy.Soco B 130:299
    [Google Scholar]
  8. Robinow C.F. 1944; Cytological observations on Bad. coli, Proteus vulgaris and various aerobic spore-forming bacteria with special reference to the nuclear structures.. J. Hyg., Comb. 43:413
    [Google Scholar]
  9. Robinow C.F. 1945; Nuclear apparatus and cell structure of rod-shaped bacteria. Addendum in R. J. Dubos, . The Bacterial Cell, in its Relation to Problems of Virulence, Immunity and Chemotherapy. Cambridge, Mass., U.S.A.: Harvard University Press;
    [Google Scholar]
  10. Singh B.N. 1946; Soil Acrasieae and their bacterial food supply.. Nature; Lond.: 157:133
    [Google Scholar]
  11. Singh B.N. 1947; Studies on Soil Acrasieae. Part 1. Distribution of species of Didyostelium in soils of Great Britain and the effect of bacteria on their development.. J. gen. Microbiol. 1:11
    [Google Scholar]
  12. Stanier R.Y. 1942a; Are there obligate cellulose-decomposing bacteria?. Soil Sei. 53:479
    [Google Scholar]
  13. Stanier R.Y. 1942b; The Cytophaga group: a contribution to the biology of Myxobacteria.. Bad. Rev. 6:143
    [Google Scholar]
  14. Vahle C. 1910; Vergleichende Untersuchungen uber die Myxobakteriazeen und Bakteriazeen.. Zbl. Bakt. 2. Abt. 25:178
    [Google Scholar]
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