1887

Abstract

An aerobic actinomycete isolated from a type of periodontal disease in hamsters showed a characteristic filament/diphtheroid dimorphism. Incubation under carbon dioxide favoured development of the diphtheroid form, whereas aerobic incubation favoured the mycelial form. Iron depletion also induced filament formation. Although magnesium concentration directly affected the rate and amount of growth, no effect on morphology was observed. Critical concentrations of streptomycin sulphate and chloramphenicol also induced mycelium formation.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-38-1-125
1965-01-01
2024-04-26
Loading full text...

Full text loading...

/deliver/fulltext/micro/38/1/mic-38-1-125.html?itemId=/content/journal/micro/10.1099/00221287-38-1-125&mimeType=html&fmt=ahah

References

  1. Bartnicki-Garcia S. 1963; Symposium on biochemical bases of morphogenesis in fungi. III.. Mold-yeast dimorphism of Mucor. Bad. Rev. 27:293
    [Google Scholar]
  2. Bullen J. J. 1949; The yeast-like form of Cryptococcus farciminosus (Rivolta): Histoplasma farciminosum.. J. Path. Bact. 61:117
    [Google Scholar]
  3. Chan E. C. S. 1964; Morphological aberration of Arthrobacter globiformis cells due to biotin deficiency.. J. Bact. 87:641
    [Google Scholar]
  4. Drouhet E., Mariat F. 1952; Etude des facteurs determinant le developpement de la phase levure de Sporotrichum schencki. Annls Inst. Pasteur, Paris 83:506
    [Google Scholar]
  5. Ensign J. C., Wolfe R. S. 1964; Nutritional control of morphogenesis in Arthrobacter crystallopoietes. J. Bad. 87:924
    [Google Scholar]
  6. Fleming A., Voureka A., Kramer I. R. H., Hughes W. H. 1950; The morphology and motility of Proteus vulgaris and other organisms cultured in the presence of penicillin.. J. gen. Microbiol. 4:257
    [Google Scholar]
  7. Howell A. 1963; A filamentous micro-organism isolated from periodontal plaque in hamsters. I. Isolation, morphology, and general cultural characteristics.. Sabouraudia 3:81
    [Google Scholar]
  8. Howell A., Jordan H. Y. 1963; A filamentous micro-organism isolated from periodontal plaque in hamsters. II. Physiological and biochemical characteristics.. Sabouraudia 3:93
    [Google Scholar]
  9. Hurst V. 1950; Morphologic instability of actinomycetes associated with enamel.. J. dent. Res. 29:571
    [Google Scholar]
  10. Jordan H. V., Keyes P. H. 1963; Induction of subgingival plaque and periodontal pathosis in hamsters by a Gram-positive filamentous organism.. Proc. int. Assn dent. Res. Abstract No. 319: p. 115
    [Google Scholar]
  11. Jordan H. V., Keyes P. H. 1964; Aerobic, gram-positive, filamentous bacteria as etiologic agents of experimental periodontal disease in hamsters.. Arch, oral Biol. 9:401
    [Google Scholar]
  12. Keyes P. H., Jordan H. V. 1964; Periodontal lesions in the Syrian hamster. III. Findings related to an infectious and transmissible component.. Arch, oral Biol. 9:377
    [Google Scholar]
  13. Lones G. W., Peacock C. L. 1960; Role of carbon dioxide in the dimorphism of Coccidioides immitis. J. Bact. 79:308
    [Google Scholar]
  14. Morris E. O. 1954; The bacteriology of the oral cavity. V. Cornynebaderium and gram-positive filamentous organisms.. Brit. dent. J. 97:29
    [Google Scholar]
  15. Nickerson W. J., Mankowski Z. 1953; Role of nutrition in the maintenance of the yeast-shape in Candida. Amer. J. Bot. 40:584
    [Google Scholar]
  16. Pine L., Howell A. Jr. 1956; Comparison of physiological and biochemical characters of Actinomyces spp. with those of Lactobacillus bifidus. J. gen. Microbiol. 15:428
    [Google Scholar]
  17. Pine L., Howell A. Jr., Watson S. J. 1960; Studies of the morphological, physiological, and biochemical characters of Actinomyces bovis. J. gen. Microbiol. 23:403
    [Google Scholar]
  18. Pratt R., Dufrenoy J. 1948; Cytochemical interpretation of the mechanism of penicillin action.. Bad. Rev. 12:79
    [Google Scholar]
  19. Ratledge C., Winder F. G. 1964; Effect of iron and zinc on growth patterns of Escherichia coli in an iron-deficient medium.. J. Bact. 87:823
    [Google Scholar]
  20. Webb M. 1953; Effects of magnesium on cellular division in bacteria.. Science 118:607
    [Google Scholar]
  21. Webley D. M. 1960; The effect of deficiency of iron, zinc, and manganese on the growth and morphology of Nocardia opaca. J. gen. Microbiol. 23:87
    [Google Scholar]
  22. Winder F., Denneny J. M. 1959; Effect of iron and zinc on nucleic acid and protein synthesis in Mycobacterium smegmatis. Nature, Lond. 184:742
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-38-1-125
Loading
/content/journal/micro/10.1099/00221287-38-1-125
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error