1887

Abstract

SUMMARY: A filamentous, gliding microbe isolated from a marine source is described as a new species of Flexibacter (Cytophagales: Flexibacteraceae). The filaments are typically multicellular. At the end of each cell there is normally a refractile granule of lipid material (not elemental sulphur, as would be the case in a Beggiatoa species). Under certain culture conditions, unicellular elements, helically coiled filaments or, occasionally, branched filaments may be produced. The filaments, which are not photosynthetic, are peach-coloured when grown in light: the pigment is a carotenoid spectroscopically resembling saproxanthin. The guanine + cytosine proportional content in the DNA is 29 %.

The organism grows in media prepared with sea water or an equivalent saline solution. It can utilize glucose as sole carbon source; glutamate or Tryptone can serve as a suitable source of both C and N. Cobalamin is the only organic micronutrient essential for growth. The generation (doubling) time is 6 h at 22 °C.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-82-2-393
1974-06-01
2021-10-27
Loading full text...

Full text loading...

/deliver/fulltext/micro/82/2/mic-82-2-393.html?itemId=/content/journal/micro/10.1099/00221287-82-2-393&mimeType=html&fmt=ahah

References

  1. Aasen A. J., Jensen S. L. 1966; The carotenoids of flexibacteria. II. A new xanthophyll from Saprospira grandis . Acta chemica scandinavica 20:811–819
    [Google Scholar]
  2. Cataldi M. S. 1940; Aislamiento de Beggiatoa alba en cultivo puro. Revista del Institute Bacteriologico (D.N.H) 9:393–423
    [Google Scholar]
  3. Kowallik U., Pringsheim E. G. 1966; The oxidation of hydrogen sulfide by Beggiatoa . Journal of Botany 53:801–806
    [Google Scholar]
  4. Lewin R. A. 1962; Saprospira grandis Gross; and suggestions for reclassifying helical, apochlorotic, gliding organisms. Canadian Journal of Microbiology 8:555–563
    [Google Scholar]
  5. Lewin R. A. 1963; Rod-shaped particles in Saprospira . Nature; London: 198103–104
    [Google Scholar]
  6. Lewin R. A. 1965; Isolation and some physiological features of Saprospira thermalis . Canadian Journal of Microbiology 11:77–86
    [Google Scholar]
  7. Lewin R. A. 1969; A classification of flexibacteria. Journal of General Microbiology 58:189–206
    [Google Scholar]
  8. Lewin R. A. 1972; Growth and nutrition of Saprospira grandis (Flexibacterales). Canadian Journal of Microbiology 18:361–365
    [Google Scholar]
  9. Lewin R. A., Lounsbery D. M. 1969; Isolation, cultivation and characterization of flexibacteria. Journal of General Microbiology 58:145–170
    [Google Scholar]
  10. Lewin R. A., Mandel M. 1970; Saprospira toviformis nov.spec. (Flexibacterales) from a New Zealand seashore. Canadian Journal of Microbiology 16:507–510
    [Google Scholar]
  11. Pringsheim E. G. 1963 >Farblose Algen: ein Beitrag zur Evolutions forschung Stuttgart: G. Fischer;
    [Google Scholar]
  12. Pringsheim E. G. 1964; Heterotrophism and species concepts in Beggiatoa . American Journal of Botany 51:898–913
    [Google Scholar]
  13. Pringsheim E. G., Wiessner W. 1963; Minimum requirements for heterotrophic growth, and reserve substance in Beggiatoa . Nature; London: 197102
    [Google Scholar]
  14. Ridgway H. F., Lewin R. A. 1973; Goblet-shaped subunits from the cell wall of a marine gliding microbe. Journal of General Microbiology 79:119–128
    [Google Scholar]
  15. Simon G. D., White D. 1971; Growth and morphological characteristics of a species of Flexibacter . Archiv für Mikrobiologie 78:1–15
    [Google Scholar]
  16. Soriano S., Lewin R. A. 1965; Gliding microbes: some taxonomic reconsiderations. Antonie van Leeuwenhoek 31:66–80
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/micro/10.1099/00221287-82-2-393
Loading
/content/journal/micro/10.1099/00221287-82-2-393
Loading

Data & Media loading...

Most cited this month Most Cited RSS feed

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