1887

Abstract

Summary: Fourteen cultures of thermophilic acidophilic bacteria have been isolated from a variety of thermal acid environments by enrichment at elevated temperatures and low pH. Morphological and physiological properties suggest that the bacteria are members of a homogeneous group of aerobic spore-forming rods. The base composition of the DNA is about 62 % guanine plus cytosine, and this fact together with the physiological properties suggests that relationship to other species in the genus is rather distant. The isolates are hence classified in a new species, .

The species is characterized by the ability to grow at temperatures from 45° to 70° (optimum 60° to 65°) and at pH values from 2·0 to 6·0 (optimum 3 to 4).

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-67-1-9
1971-07-01
2024-12-05
Loading full text...

Full text loading...

/deliver/fulltext/micro/67/1/mic-67-1-9.html?itemId=/content/journal/micro/10.1099/00221287-67-1-9&mimeType=html&fmt=ahah

References

  1. Becker M. E., Pederson C. S. 1950; The physiological characteristics of Bacillus coagulans (Bacillus thermoacidurans). Journal of Bacteriology 59:717–725
    [Google Scholar]
  2. Brock T. D., Darland G. 1970; The limits of microbial existence: temperature and pH. Science, New York 169:1316–1318
    [Google Scholar]
  3. Lederberg J., Lederberg E. M. 1952; Replica plating and indirect selection of bacterial mutants. Journal of Bacteriology 63:399–406
    [Google Scholar]
  4. Manachini P. L., Craveri A., Guicciardi A. 1968; Composizione in basi dell acido desossiribonucleico di forme mesofile, termofacoltative e termofile del genere Bacillus . Annali di Microbiologia ed Enzimologia 18:1
    [Google Scholar]
  5. Schildkraut C. L., Marmur J., Doty P. 1962; Determination of the base composition of deoxyribonucleic acid from its buoyant density in CsCl. Journal of Molecular Biology 4:430–443
    [Google Scholar]
  6. Smith N. R., Gordon R. E., Clark F. E. 1952 Aerobic Spore-forming Bacteria. United States Department of Agriculture, Agriculture Monograph no. 16;
    [Google Scholar]
  7. Society of American Bacteriologists 1957 Manual of Microbiological Methods. New York: McGraw-Hill;
    [Google Scholar]
  8. Stenesh J., Roe B. A., Snyder T. L. 1968; Studies of the deoxyribonucleic acid from mesophilic and thermophilic bacteria. Biochimica et biophysica acta 161:442–454
    [Google Scholar]
  9. Uchino F., Doi S. 1967; Acido-thermophilic bacteria from thermal waters. Agricultural and Biological Chemistry 31:817–822
    [Google Scholar]
  10. Wolf J., Barker A. N. 1968; The genus Bacillus: aids to the identification of its species. Identification Methods for Microbiologists92–109 Edited by Gibbs B. M., Shapton D. A. London: Academic Press;
    [Google Scholar]
/content/journal/micro/10.1099/00221287-67-1-9
Loading
/content/journal/micro/10.1099/00221287-67-1-9
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