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Archiv für Mikrobiologie

, Volume 39, Issue 3, pp 298–312 | Cite as

Aerobic sporeforming bacilli showing the phenomenon of colony migration

  • J. S. Shukla
  • V. N. Iyer
Article
  • 17 Downloads

Summary

It is proposed that the grouping of unicellular forms of bacteria into clusters or colonies may be the first step in the evolution of multicellular forms and that any further evolutionary advance would require the subordination of the impulses of the individual in favour of the needs of the “colony”. This latter relationship is exemplified by the group movement of certain aerobic sporeforming bacilli. A description of the nature of this movement on the surface of nutrient agar has been made.

Studies on 54 strains showing this group movement reveal that they taxonomically constitute a nebulous group in Morphological Group II of the genus Bacillus according to the presently accepted system of classification (Bergey's Manual 1957). While the large majority of the strains studied morphologically resemble B. alvei, none exhibit the typical physiological characteristics of this species. Considering all the characteristics studied, the strains in our collection could be placed in an indefinite group comprising B. alvei, B. circulans, B. laterosporus and B. pulvifaciens. This however does not reflect any marked dissimilarities between the strains studied but rather the unsatisfactory taxonomy of the species enumerated. A re-examination of the determinative classification of these four species especially with reference to the unsatisfactory use of starch hydrolysis in the key to the genus is suggested.

Keywords

Hydrolysis Starch Bacillus Nutrient Agar Physiological Characteristic 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Baker, H., H. Sobotka and S. H. Hutner: Growth requirements of some thermophilic and mesophilic bacilli. J. gen. Microbiol. 9, 485 (1953).Google Scholar
  2. Bonner, J. T.: A descriptive study of the development of the slime mold Dictyostelium discoideum. Amer. J. Bot. 31, 175 (1944).Google Scholar
  3. Bonner, J. T.: The pattern of differentiation in amoeboid slime molds. Amer. Natural. 86, 79 (1952).Google Scholar
  4. Breed, R. S., E. G. D. Murray and N. R. Smith: Bergey's Manual of Determinative Bacteriology. Baltimore: Williams and Wilkins Co. 1957.Google Scholar
  5. Eigelsbach, H. T., W. Braun and R. D. Herring: Studies on the variation of Bacterium tularense. J. Bact. 61, 557 (1951).Google Scholar
  6. Hugh, R., and E. Leifson: The taxonomic significance of fermentative versus oxidative metabolism of carbohydrates by various Gram negative bacteria. J. Bact. 66, 24 (1953).Google Scholar
  7. Iyer, V., and J. V. Bhat: Observations on the taxonomy of the genus Bacillus. Arch. Mikrobiol. 23, 88 (1955).Google Scholar
  8. Kanga, D. H.: Studies on the growth and sporulation of sporeforming bacilli in defined media. M. Sc. thesis, Gujarat University.Google Scholar
  9. Kanga, D. H., and V. Iyer: Interrelationships between amino acids in the growth of Bacillus subtilis. J. Sci. industr. Res. 18 C, 85 (1959).Google Scholar
  10. Katznelson, H., and A. G. Lochhead: Nutritional requirements of Bacillus alvei and Bacillus para-alvei. J. Bact. 53, 83 (1947).Google Scholar
  11. Khambata, S. R.: Studies on some microorganisms associated with the intestine of the Indian earthworm Ph. D. thesis, University of Bombay (1954).Google Scholar
  12. Knight, B. C. J. G.: The principles of Microbial Classification. Nutritional characters. J. gen. Microbiol. 12, 348 (1955).Google Scholar
  13. Loeffler, F.: Zbl. Bakt. 7, 625 (1890).Google Scholar
  14. Murray, R. G. E., and R. H. Elder: The predominance of counter-clock wise rotation during swarming of Bacillus species. J. Bact. 58, 351 (1949).Google Scholar
  15. Raper, K. B.: Developmental patterns in simple slime molds. Growth (3rd symposium) 5, 41 (1941).Google Scholar
  16. Sasarman, A., V. Ganea and M. Dospina: Contribution to the study of motility of bacterial colonies. Arch. Roumaines Path. exp. Microbiol. 16 (3), 395 (1957).Google Scholar
  17. Robinow, C. F.: A study of the nuclear apparatus of bacteria. Proc. roy. Soc. B 130, 299 (1942).Google Scholar
  18. Shaw, C., and P. H. Clarke: Biochemical classification of Proteus and Providence cultures. J. gen. Microbiol. 13, 155 (1955).Google Scholar
  19. Shinn, L. E.: A cinematographic analysis of motion of Bacillus alvei. J. Bact. 36, 419 (1938).Google Scholar
  20. Shinn, L. E.: The motion of colonies of Bacillus alvei as shown by lapse-time cinematography. J. Bact. 39, 22 (1940).Google Scholar
  21. Smith, N. R., R. E. Gordon and F. E. Clarke: Aerobic Sporeforming Bacteria. Agriculture Monograph No. 16, U. S. Dept. of Agriculture, Washington, D. C. (1952).Google Scholar
  22. Society of American Bacteriologists: Manual of Microbiological Methods. New York: McGraw Hill Book Co., 1957.Google Scholar
  23. Sussman, M.: ‘Fruity’ and other mutants of the cellular slime mould, Dictyostelium discoideum: a study of developmental aberrations. J. gen. Microbiol. 13, 295 (1955).Google Scholar
  24. Sussman, M., and R. R. Sussman: 14th symposium for the study of Growth and Development. Princeton: Princeton Univ. Press 1957.Google Scholar

Copyright information

© Springer-Verlag 1961

Authors and Affiliations

  • J. S. Shukla
    • 1
  • V. N. Iyer
    • 1
  1. 1.Microbiology DepartmentS. B. Garda CollegeNavsariIndia

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